Abstract: The present invention relates to a metallic laminate and a manufacturing method of a light emitting diode package using the same. The present invention provides a metallic laminate including: a core layer made of an insulating material; a metal layer disposed on one surface of the core layer; a heat radiating metal layer disposed on the other surface of the core layer; and a protective metal oxide layer disposed along an outer surface of the heat radiating metal layer and made of an oxide of the heat radiating metal layer.

Abstract: A clad material includes a core material, a first skin material covering one side of the core material, and a second skin material covering the other side of the core material. The core material is made of an Al alloy containing Cu (0.05 to 0.2 mass %), Mn (1.0 to 1.5 mass %), Zn (0.3 to 1.0 mass %), Ti (0.05 to 0.25 mass %), Fe (0.2 mass % or less), and Si (0.2 mass % or less), the balance being Al and unavoidable impurities. The first skin material is made of an Al alloy containing Si (6.8 to 11.0 mass %) and Zn (0.05 mass % or less), the balance being Al and unavoidable impurities. The second skin material is made of an Al alloy containing Si (4.0 to 6.0 mass %) and Cu (0.5 to 1.0 mass %), the balance being Al and unavoidable impurities.

Abstract: A brazing sheet material for CAB brazing without applying flux. The brazing sheet material including an aluminum core alloy layer provided with a first brazing clad layer material on one or both sides of the aluminum core layer and at least one second brazing clad layer material positioned between the aluminum core alloy layer and the first braze clad layer material. The second brazing clad layer material is an Al—Si alloy brazing material having 5% to 20% Si and 0.01% to 3% Mg, and the first brazing clad layer material is an Al—Si alloy brazing material having 2% to 14% Si and less than 0.4% Mg. Also disclosed is a brazed assembly manufactured in a brazing operation.

Abstract: A method of processing a brazed article includes forming a braze joint with an aluminum component comprising a nano-grained aluminum alloy.

Abstract: The invention relates to a process for making a hot stamped coated steel sheet product, comprising the steps of pre-coating a steel strip or sheet with aluminum- or aluminum alloy, cutting said pre-coated steel strip or sheet to obtain a pre-coated steel blank, heating the blank in a furnace preheated to a temperature and during a time defined by diagram according to thickness, at a heating rate Vc between 20 and 700° C. comprised between 4 and 12° C./s and at a heating rate Vc? between 500 and 700° C. comprised between 1.5 and 6° C./s, to obtain a heated blank; then transferring said heated blank to a die, hot stamping the heated blank in the die obtain a hot stamped steel sheet product, cooling at a mean rate Vr between the exit of the heated blank from the furnace, down to 400° C., of at least 30° C./s.

Abstract: A structural member comprising at least two aluminum alloy parts displaying different property balances, said at least two parts being welded and wherein one of said parts either is (i) selected from an aluminum alloy different from the other of said at least two parts and/or (ii) is selected from an initial temper different from the other of said at least two parts, and wherein at least one of said at least two parts has been pre-aged prior to being welded, and, wherein said structural member has undergone a post-welding thermal treatment conferring a final temper to each of said at least two parts. The parts are advantageously welded by friction stir welding. Another subject of the invention is a method for manufacturing a structural member.

Abstract: A composite metal ingot having two or more lengthwise alloy layers including adjacent first and second layers respectively formed of an aluminum-manganese alloy and an aluminum alloy of a different composition wherein the interface between the first and second layers is in the form of a substantially continuous metallurgical bond characterized by the presence of particles of one or more intermetallic compositions containing manganese from the first layer dispersed within a region of the second layer adjacent the interface, the first and second layers having been formed by applying the alloy for the second layer to a self-supporting surface of the first layer while the self-supporting surface is at a temperature between the solidus and liquidus temperatures of the first layer alloy.

Abstract: Skin material of a clad material is composed of one or more layers, each layer of the skin materials is made of a metal different from the core material in their component compositions, and at least one layer of the skin material has a cast microstructure, when the skin material is superposed on either of one or both faces of the core material.

Abstract: A method and apparatus are described for the casting of a composite metal ingot having two or more separately formed layers of one or more alloys. An open ended annular mould is provided having a divider wall dividing a feed end of the mould into at least two separate feed chambers. For each pair of adjacent feed chambers, a first alloy stream is fed through one of the pair of feed chambers into the mould and a second alloy stream is fed through another of the feed chambers. A self-supporting surface is generated on the surface of the first alloy stream and the second alloy stream is contacted with the first stream. By carefully selecting conditions and positions where the alloy streams meet, a composite metal ingot is formed in which the alloy layers are mutually attached with a substantially continuous metallurgical bond.

Abstract: Cookware, such as a stock pot, fry pan, sauté pan, griddle, or grill, comprising a basic three-ply bonded composite includes two layers of an aluminum alloy, such as 3003 or the like, bonded on opposed sides to a core layer of higher purity aluminum, such as 1050, 1100, 1145, or the like, to define a three-ply composite cookware product. One or more additional layers of higher purity aluminum are bonded intermediate one or more additional layers of aluminum alloy to form five-ply, or seven-ply, or more, bonded composite cookware products. The exterior layers of aluminum alloy may also include a non-stick coating and/or an anodized coating.

Abstract: Anodized electroplated aluminum structures and methods for making the same are disclosed. Cosmetic structures according to embodiments of the invention are provided by electroplating a non-cosmetic structure with aluminum and then anodizing the electroplated aluminum. This produces cosmetic structures that may possess desired structural and cosmetic properties and that may be suitable for use as housing or support members of electronic devices.

Abstract: The exemplary embodiments relate to a multilayer aluminum alloy sheet material suitable for fabrication into coolant-conveying tubes, headers and the like used for heat exchangers, and to the tubes and headers, etc., fabricated from the sheet. The multi-layer metal sheet has a core layer of aluminum alloy having first and second sides. The first side has an interlayer made of a Zn-containing aluminum alloy positioned between a Zn-containing outer layer and the core layer. The alloy of the outer layer is more electronegative than the alloy of the interlayer. The alloy of the interlayer is preferably more electronegative than the alloy of the core layer. The first side clad in this way is the side intended for exposure to the coolant, and provides good resistance to corrosion and erosion.

Abstract: Provided is a multi-layered sheet which has undergone heating corresponding to brazing, such as an aluminum-alloy radiator tube, or a multi-layered sheet such as an aluminum-alloy brazing sheet. The multi-layered sheet can have a reduced thickness and has excellent fatigue properties. The multi-layered sheet of aluminum alloys comprises a core layer (2) which has been clad at least with a sacrificial layer (3). This multi-layered sheet is a multi-layered sheet to be subjected to brazing or welding to produce a heat exchanger or is a multi-layered sheet which has undergone heating corresponding to brazing. The core layer (2) comprises a specific 3000-series composition. In this core layer (2), the average density in number of dispersed particles having a specific size has been regulated. As a result, fatigue properties, which govern cracking, can be highly improved.

Abstract: A coated article is provided. A coated article includes a substrate having a color layer and a ceramic layer formed thereon, and in that order. The color layer substantially comprises a material elected from the group consisting of aluminum, aluminum alloy, zinc, and zinc alloy. The ceramic layer substantially consists of substance M, elemental O, and elemental N, wherein M is elemental Al or elemental Zn.

Abstract: Automotive body sheet in the form of an aluminium composite sheet material wherein a clad sheet is applied to at least one side of a core material, and wherein the core material is of an aluminium alloy selected from the group consisting of AA2xxx, AA5xxx and AA7xxx-series alloys, and wherein the clad sheet includes an AA6xxx-series alloy having less than 0.2 wt. % Cu or an AA5xxx-series alloy having less than 3.6 wt. % of Mg.

Abstract: Problem To provide an aluminum alloy brazing sheet, featuring a good brazing property that prevents diffusion of molten filler material in a core material of the aluminum alloy brazing sheet during a brazing process and exhibiting a superior corrosion resistance to an exhaust gas condensate water after the brazing process, a method of manufacturing the aluminum alloy brazing sheet, and a high corrosion-resistant heat exchanger using the aluminum alloy brazing sheet. Resolving Means A high corrosion-resistant aluminum alloy brazing sheet comprises a core material composed of an aluminum alloy, a sacrificial anode material cladded on one surface of the core material, and a filler material composed of an Al/Si-based alloy and cladded on another surface of said core material, and is characterized in that the sacrificial anode material is composed of an aluminum alloy which contains Si falling within a range of 2.5-7.0 mass %, Zn falling a range of 1.0-5.5 mass %, Fe falling within a range of 0.05-1.

Abstract: The present invention provides an aluminum alloy material which is used as a core material for an aluminum alloy brazing sheet and has superior strength at a high temperature. The aluminum alloy material of the present invention is used as a core material C1 for an aluminum alloy brazing sheet B31 (or B32) which has a filler alloy F formed on at least one side of the core material C1. The aluminum alloy material contains more than 2.5% by mass and 3.5% by mass or less of Cu, and the balance being made of aluminum and unavoidable impurities.

Abstract: An aluminum brazing sheet has a core material made of an aluminum alloy and a cladding material cladded on at least one side of the core material and made of an aluminum alloy having a potential lower than that of the core material. The cladding material is made of an aluminum alloy consisting essentially of 0.4 to 0.7 mass % of Mg, 0.5 to 1.5 mass % of Si, and 0.4 to 1.2 mass % of Mn, the remainder being Al and unavoidable impurities. Zn in the amount of 6 mass % or less is added in accordance with need. An aluminum brazing sheet having not only high strength but also less pressure adhesion failure and excellent productivity can be obtained.

Abstract: This invention provides an aluminum end closure for interconnection to a container, wherein the end closure comprises an aluminum alloy substrate and a cladding layer on the exterior of the substrate that is not susceptible to stress corrosion

Abstract: Various illustrative embodiments of a multi-layer brazing sheet are provided. The multi-layer brazing sheet demonstrates improved corrosion resistance on its exposed air side surface.

Abstract: In one aspect, coated cutting tools are described herein which, in some embodiments, can demonstrate improved wear resistance in one or more cutting applications. In some embodiments, a coated cutting tool described herein comprises a substrate and a coating adhered to the substrate, the coating comprising an inner layer deposited by physical vapor deposition and an outer deposited by physical vapor deposition over the inner layer.

Abstract: An aluminum alloy clad sheet for heat exchangers includes a core layer, a sacrificial layer disposed on one side of the core layer, and a brazing layer of an Al—Si alloy disposed on the other side of the core layer, wherein the core layer contains Si: 0.15% to 1.6% by mass, Mn: 0.3% to 2.0% by mass, Cu: 0.1% to 1.0% by mass, Ti: 0.02% to 0.30% by mass, and the remainder of Al and incidental impurities, and the sacrificial layer contains Zn: 4.0% to 10.0% by mass, Cr: 0.01% to 0.5% by mass, and the remainder of Al and incidental impurities.

Abstract: A frame member for use in a two-wheeled vehicle and an all-terrain vehicle that includes a plurality of Al members each made of a 7000 series Al alloy having a high strength is provided in which weld crack sensitivity is reduced and a weld joint having an excellent strength is provided. The alloy composition of the 7000 series Al alloy, which provides the Al member, containing Cu: 0.01 to 0.50%, Mg: 0.5 to 2.1%, and Zn: 4.0 to 8.5%, with the balance being Al and inevitable impurities. Further, in the production of the frame member, the plurality of Al members are integrated by welding using a filler metal containing Mg: 5.5 to 8.0%, Cr: 0.05 to 0.25%, Ti: 0.25% or less, Si: 0.4% or less, Fe: 0.4% or less, Cu: 0.1% or less, Zr: 0.05% or less and Zn: 0.25% or less, and with the balance being Al and inevitable impurities.

Abstract: An aluminum alloy brazing sheet includes a core material containing Si, Cu and Mn by a predetermined amount, the balance being Al and inevitable impurities, a sacrificial anode material disposed on one face side of the core material and containing Si, Zn and Mg by a predetermined amount, the balance being Al and inevitable impurities, and a brazing filler material disposed on the other face side of the core material and formed of an aluminum alloy, and the area fraction of Zn—Mg-based intermetallic compounds with 2.0 ?m or above particle size on the surface of the sacrificial anode material may be 1.0% or below. Or otherwise, in the aluminum alloy brazing sheet, the number density of Al—Cu-based intermetallic compounds with 0.5 ?m or above particle size inside the core material may be 1.0 piece/?m2 or below.

Abstract: To provide an aluminum alloy brazing sheet which can improve erosion resistance while maintaining post-braze strength, brazability, formability, corrosion resistance and other properties even when Mg is added to the core material. The aluminum alloy brazing sheet comprises an Al—Si-based or Al—Si—Zn-based filler material cladded on at least one side of a core material. The core material comprises Si: 0.3 to 1.0% by mass, Mn: 0.6 to 2.0% by mass, Cu: 0.3 to 1.0% by mass, Mg: 0.15 to 0.5% by mass, Ti: 0.05 to 0.25% by mass, with the remainder being Al and inevitable impurities, and has the density of an Mg—Si-based, Al—Mg—Cu-based, Al—Cu—Mg—Si-based intermetallic compound with a particle size smaller than 0.5 ?m of 10000/mm2 or higher, or has the density of the Mg—Si-based, Al—Mg—Cu-based and Al—Cu—Mg—Si-based intermetallic compounds with a particle size of 1.0 ?m or larger lower than 5000/mm2.

Abstract: There is provided an aluminum alloy brazing sheet having an improved brazability than in the related art while keeping the post-braze strength, workability, corrosion resistance, and the like at respective prescribed or higher levels. An aluminum alloy brazing sheet has a two-layered structure in which on one side of a core material, a brazing material is provided. The core material contains Si: 0.6 to 1.0 mass %, Cu: 0.6 to 1.0 mass %, Mn: 0.7 to 1.8 mass %, Mg: 0.1 to 0.7 mass %, and Ti: 0.06 to 0.20 mass %, and the balance including Al and inevitable impurities. The brazing material includes an aluminum alloy containing Si: 3.0 to 12.0 mass %, the gage of the aluminum alloy brazing sheet is 0.6 to 1.4 mm, and the area ratio of a {001} plane in the core material surface is 0.3 or more.

Abstract: An aluminum bonding alloy is an Ni—Mg alloy for bonding aluminum and a non-aluminum metal selected from steel, copper, nickel or titanium. The Ni—Mg alloy consists essentially of 0.08-0.90 mass % Mg, and the balance of Ni and inevitable impurities. A clad material includes a non-aluminum metal layer made of the non-aluminum metal and a bonding alloy layer made of the aluminum bonding alloy. The non-aluminum metal layer and the bonding alloy layer are bonded together by pressure welding and diffusion bonding.

Abstract: Electrode foil includes an aluminum alloy having a composition in a region at least 10 ?m deep from a surface of the foil. The composition includes aluminum as a main component and zirconium of at least 0.03 at % and at most 0.5 at %.

Abstract: Disclosed is an aluminum alloy brazing sheet for heat exchangers, which has high strength after brazing, high corrosion resistance and excellent brazability. Specifically disclosed is an aluminum alloy brazing sheet (1a) for heat exchangers comprising a core member (2), a sacrificial member (3) formed on one side of the core member (2), and a brazing filler metal (4) formed on the other side of the core member (2) and composed of an Al—Si alloy. The sacrificial member (3) contains 0.03-0.30% by mass of Fe, 0.01-0.40% by mass of Mn, 0.4-1.4% by mass of Si, 2.0-5.5% by mass of Zn, not more than 0.05% by mass of Mg and the balance of Al and unavoidable impurities. In addition, the sacrificial member (3) has a crystal grain size of 100-400 & mgr;m after 5-minute heat treatment at 600 & ring;C during the brazing.

Abstract: An exemplary metallic cover (20) includes a bottom base (21) and a plurality of side walls (22, 23, 24, 25). The side walls extend from bottom base. The bottom base and each of the side walls are connected by an edge structure (26). The metallic cover is made of a metallic material that has a yield strength in the range from about 80 MPa to about 150 MPa, an elongation ratio in the range from about 15% to about 28%, and a hardness in the range from about 45 HV0.2 to about 70 HV0.2. A method for making the metallic cover is also provided.

Abstract: A multi layered aluminum alloy brazing sheet including a core material, an intermediate layer on at least one side of the core material, the intermediate layer comprising an Al—Si braze alloy, and a thin covering layer on top of the intermediate layer, The core material and the covering layer have a higher melting temperature than the Al—Si braze alloy. The covering layer includes Bi 0.01 to 1.0 wt-%, Mg?0.01 wt-%, Mn?1.0 wt-%, Cu?1.2 wt-%, Fe?1.0 wt-%, Si?4.0 wt-%, Ti?0.1 wt-%, Zr, Cr, V and/or Sc in total ?0.2%, and unavoidable impurities each in amounts less than 0.05 wt-%, and a total impurity content of less than 0.2 wt-%, the balance including aluminium. A heat exchanger including the alloy brazing sheet.

Abstract: A brazing sheet of aluminum alloy composed of a core material and a first brazing filler metal covering one surface of the core material. The core material contains as an essential component 0.2-1.0 mass % of Cu and as optional components at least one species of no more than 1.5 mass % of Si, no more than 1.8 mass % of Mn, no more than 0.35 mass % of Ti, and no more than 0.5 mass % of Mg, with the remainder being Al and inevitable impurities. The first brazing filler metal has a liquid phase ratio (X %) at 600° C. and a thickness (Y ?m) such that X and Y satisfy the following relationship: (1) 30?X?80, (2) Y?25, and (3) 1000?X×Y?24000. The brazing sheet provides good brazeability and maintains high corrosion resistance after brazing on the surface cladded with the brazing filler metal.

Abstract: An aluminum article includes a substrate comprising a surface having a plurality of pores defined therein by high energy beam etching; and a transparent vacuum deposition layer deposited on the surface and filling the pores.

Abstract: An aluminum alloy brazing sheet having a core material of an aluminum alloy, and a filler material cladded on the core is disclosed. The core material is an aluminum alloy having about 0.05 to about 1.2 mass Si, about 0.05-about 1.0 mass % Fe, about 0.05-about 1.2 mass % Cu, and about 0.6-about 1.8 mass % Mn, balance Al and the inevitable impurities. The filler material includes an aluminum alloy having about 2.5-about 13.0 mass % Si. Also, there is provided a method of manufacturing such an aluminum alloy brazing sheet.

Abstract: An aluminum article includes a substrate comprising a surface having a plurality of nano-pores defined therein; and a transparent vacuum deposition layer deposited on the surface and filling the nano-pores.

Abstract: A slurry composition for aluminising a superalloy component is provided, wherein the slurry includes an organic binder and a solid content including aluminium. The slurry further includes hafnium and yttrium. In addition, a superalloy component is provided which includes an aluminide coating. The coating material has at least one layer which includes hafnium and yttrium in addition to aluminium.

Abstract: A coated article includes a substrate, an anti-corrosion layer formed on the substrate and a decorative layer formed on the anti-corrosion layer. The substrate is made of aluminum or aluminum alloy. The anti-corrosion layer is an aluminum layer. The coated article has improved corrosion resistance.

Abstract: The invention relates to an aluminum alloy brazing sheet including: a thin covering material layer, a core material layer, and an Al—Si alloy brazing material layer as an intermediate material interposed between the thin covering material and the core material. The thin covering material and the core material being of aluminum alloys having a solidus temperature higher than a liquidus temperature of the brazing material so that the molten brazing material seeps onto a surface of the thin covering material when the brazing material is molten in a brazing operation. The Al—Si alloy brazing material contains from 0.01 to 0.09% mg, and the aluminum alloy brazing sheet has a total Mg-content of less than 0.06%.

Abstract: An aluminum alloy brazing sheet having high strength comprising: a core alloy; an Al—Si-based filler alloy cladded on one side or both sides of the core alloy, wherein the core alloy is composed of an aluminum alloy containing 0.3-1.2% (mass %, the same applies the below) Si, 0.05-0.4% Fe, 0.3-1.2% Cu, 0.3-1.8% Mn, 0.05-0.6% Mg, and containing one or more elements selected from the group consisting of 0.02-0.3% Ti, 0.02-0.3% Zr, 0.02-0.3% Cr and 0.02-0.3% V, the balance of Al and unavoidable impurities; and wherein, after the aluminum alloy brazing sheet is subjected to brazing, the core alloy features a metallic structure in which a density of intermetallic compounds having a grain diameter of at least 0.1 ?m is at most ten grains per ?m2.

Abstract: An aluminium alloy brazing sheet including: a core material made of an aluminium alloy; and a cladding material clad on at least one side of the core material and made of an aluminium alloy having a potential lower than that of the core material. The cladding material is an outermost layer of the brazing sheet, wherein the cladding material is made of an aluminium alloy including 0.2 to 2.0 wt % of Mg, 0.5 to 1.5 wt % of Si, 1.0 to 2.0 wt %, preferably 1.4-1.8% of Mn, ?0.7 wt % of Fe, ?0.1 wt % of Cu, and ?4 wt % of Zn, ?0.3 wt % each of Zr, Ti, Ni, Hf, V, Cr, In, Sn and ?0.5 wt % total of Zr, Ti, Ni, Hf, V, Cr, In, Sn, the remainder being Al and unavoidable impurities.

Abstract: A method of welding including forming a filler material of a first oxide dispersoid metal, the first oxide dispersoid material having first strengthening particles that compensate for decreases in weld strength of friction stir welded oxide dispersoid metals; positioning the filler material between a first metal structure and a second metal structure each being comprised of at least a second oxide dispersoid metal; and friction welding the filler material, the first metal structure and the second metal structure to provide a weld.

Abstract: The invention relates to an extruded or rolled clad metal article having a core metal layer and a cladding metal layer on at least one surface of the core layer, wherein the metals of the core metal layer and the cladding metal layer are each aluminium alloys, preferably an aluminium-magnesium alloy, having at least Sc in a range of 0.05% to 1%, and wherein the Sc-content in the core metal layer is lower than in the cladding metal layer. This further relates to a welded structure incorporating such a metal article.

Abstract: A high thermal conductivity metal/diamond metal matrix composite made from diamond particles having thin layers of beta-SiC chemically bonded to the surfaces thereof, is utilized in combination with a machinable metal/carbonaceous material metal matrix composite in an integral metal matrix composite compound structure, to provide a machinable high thermal conductivity heat-dissipating substrate for electronic devices.

Abstract: A housing includes a substrate, an aluminum layer deposited on the substrate, and an aluminum oxynitride layer deposited on the aluminum layer. The aluminum layer includes aluminum. The aluminum oxynitride layer includes aluminum, nitride, and oxygen. A method for manufacturing the housing comprises providing a substrate, depositing an aluminum layer on the substrate, and depositing an aluminum oxynitride layer on the aluminum layer.

Abstract: Cookware having improved uniform heat transfer over the entire cross section thereof, the cookware formed from a multi-layered composite metal having a layer of stainless steel roll bonded at or near the core of the composite to act as a thermal barrier and provide more uniform heat distribution on the cook surface. The stainless layer is roll bonded to layers of aluminum which, in turn, is roll bonded to layers of stainless steel or aluminum or copper. The layer of stainless steel adjacent to the cooking range may be a ferromagnetic grade of stainless steel if induction-type heating is desired. The cookware may include a non-stick surface applied thereto.

Abstract: A laminate aluminum block for forming an article includes a series of aluminum laminate plates to collectively form a tool body for forming an article in a forming operation. A series of aluminum brazing layers are formed for brazing together adjacent aluminum laminate plates. The series of aluminum laminate plates and the series of aluminum brazing layers are deoxidized. Draining apertures are formed through a plurality of the series of aluminum laminate plates. The series of aluminum laminate plates are stacked alternating with the aluminum brazing layers between adjacent aluminum laminate plates without a flux. The stacked series of alternating aluminum plates and aluminum brazing layers are pressed. The stacked series of alternating aluminum plates and aluminum brazing layers are heated in a vacuum furnace to a temperature wherein the aluminum brazing layers braze the aluminum laminate plates together and excess braze material drains from the draining apertures.

Abstract: An article, includes a substrate made of aluminum or aluminum alloy and a AlON coating formed on the substrate. The AlON coating comprises, between about 50% and about 80% of atomic Al; between about 15% and about 40% of atomic O; and between about 5% and about 10% atomic N.

Abstract: Disclosed is an aluminum alloy brazing sheet (1) for heat exchangers, the brazing sheet provided with a core material (2) and a filler material (3) that comprises an Al—Si—Zn alloy and is formed on at least one side of the core material (2). The core material (2) has a pitting potential of ?650 mV or more (vs. Ag/AgCl). The filler material (3) has a zinc concentration of from 1 to 10 percent by mass; a liquid fraction X, at the brazing temperature, satisfying the relation 0.3?X?0.88; and a clad ratio d (%) satisfying the relation 15<d?30. The filler material has a product (X×d) of the liquid fraction X and the clad ratio d (%) satisfying the relation 6?X×d)?23.

Abstract: An interface device is provided that is insertable at a junction between a first device comprising a first metal and a second device comprising a second metal that is dissimilar to the first metal. The interface device comprises at least one layer comprising an alloy of the first metal and the second metal and having a functionally gradient composition operative to reduce a galvanic effect between the first and second devices.

Abstract: The present invention relates to an aluminum alloy brazing sheet (1) for a heat exchanger improved in a life including a fatigue in a plastic area and an aluminum alloy heat exchanger tube (11) using the brazing sheet, which is composed of: a core material (2) of an Al—Mn series alloy; a skin material (3) of any one of an Al—Zn series alloy, an Al—Zn—Mg series alloy, an Al—Si—Mn—Zn series alloy, and an Al—Si—Mn—Mg—Zn series alloy clad on one side of the core material; and a brazing material (4) of an Al—Si series alloy clad on the other side of the core material, and is adapted so that an X-ray diffraction intensity ratio of the aluminum alloy brazing sheet satisfies a relational expression of I200/(I111+I200+I220+I311)?0.4.