Abstract: A conversion coating applicator includes a first liner, a hydrogel attached to the first liner, and a second liner removably attached to the hydrogel. The hydrogel includes a trivalent chromium conversion coating solution including a trivalent chromium compound, a zirconate compound, and a dye compound. The conversion coating solution is an aqueous solution.

Abstract: A high-strength steel sheet with a tensile strength of 1,180 MPa or more has a predetermined chemical composition and a steel microstructure in which the area fraction of ferrite is 5% or less, the area fraction of martensite is 2% to 10%, the area fraction of bainite is 5% to 37%, the area fraction of tempered martensite is 42% to 65%, the volume fraction of retained austenite is 3% to 15%, the average grain size of ferrite and bainite is 3 ?m or less, in a region extending 50 ?m from a surface of the steel sheet in a through-thickness direction, and the average grain size of prior austenite grains is 10 ?m or less, the average grain size of the prior austenite grains in the through-thickness direction is 0.9 or less of the average grain size thereof in a rolling direction.

Abstract: A conversion coating applicator includes a first liner, a hydrogel attached to the first liner, and a second liner removably attached to the hydrogel. The hydrogel includes a trivalent chromium conversion coating solution including a trivalent chromium compound, a zirconate compound, and a dye compound. The conversion coating solution is an aqueous solution.

Abstract: Disclosed is a phosphate coating, comprising: a phosphate portion, wherein the phosphate portion comprises pores, wherein the pores are at least partially filled with a corrosion inhibition sealant, wherein the corrosion inhibition sealant comprises: a base, wherein the base comprises a matrix and a metal within the matrix, wherein the metal within the matrix comprises aluminum, an aluminum alloy, zinc, a zinc alloy, magnesium, a magnesium alloy, or a combination thereof and an inhibitor mixed within the base, wherein the inhibitor comprises zinc molybdate, magnesium metasilicate, trivalent chromium, tungstenate, a metal phosphate silicate, or a combination thereof.

Abstract: A drill string component, in particular a drilling collar component, an MWD component, or an LWD component for use in oilfield technology and particularly in deep drilling, is provided. A method of making a drill string component, and a steel alloy useful in making a drill string component, are also provided.

Abstract: A method for evaluating a delayed fracture characteristic of a metal material that performs a step including a step (A) and a step (B) below once or a plurality of times to evaluate the delayed fracture characteristic of the metal material having been processed. Step (A): a step that brings an aqueous solution which includes a chloride ion into contact with a surface of the metal material to cause chloride of 1000 to 100000 mg/m2 in chloride amount to deposit to the surface. Step (B): a step in which the metal material to which the chloride has deposited in the step (A) is left stationary in an air atmosphere at a temperature from ?50 to 10° C. and at a relative humidity higher than or equal to a deliquescence humidity of the chloride.

Abstract: A method for producing an extruded material includes: casting a billet at a casting speed of 60 mm/min or more using an alloy containing: 0.50 to 1.0% of Mg, 0.80 to 1.30% of Si, 0.10 to 0.60% of Mn, 0.05 to 0.35% of Fe, 0.35% by mass or less of Cu, less than 0.10% by mass of Cr, Zr, Zn respectively, 0.10% by mass or less of Ti, and the balance being aluminum, the alloy having 0.85 to 1.75% of stoichiometric Mg2S with 0.10 to 0.85% of excess Si, and 0.15 to 0.95% of Mn and Fe; homogenizing at 560 to 590° C. for 2 to 8 hours, cooling at 50° C./h or more; preheating at 400 to 550° C., extruding the billet into the extruded material, cooling the extruded material from 460 to 550° C. at an average rate of 350° C./min or more; and applying artificial aging.

Abstract: Systems and methods of making an enhanced vehicular brake rotor having improved wear and corrosion resistance are provided. The enhanced vehicular brake rotor comprises a brake rotor comprising a base comprised of iron (Fe). The base comprises an outer surface having open pores formed thereon. The rotor has a steam-treated layer formed on the outer surface and in the open pores. The steam-treated layer is comprised of iron oxide (Fe3O4) and has a thickness of between 10 and 50 microns for enhanced wear and corrosion resistance to define the enhanced vehicular rotor.

Abstract: A high strength steel product and a process for producing a high strength steel product, the high strength steel product being useful for producing frame components for vehicles and automobiles.

Abstract: An aluminum alloy for high pressure die casting of ultra-large vehicle body structures. The aluminum alloy includes about 4.00 to about 12.00 weight percent silicon (Si); about 0.20 weight percent maximum (Max) copper (Cu); about 0.40 weight percent Max magnesium (Mg); about 0.20 to about 0.60 weight percent iron (Fe); about 1.00 weight percent Max manganese (Mn); about 0.50 weight percent Max zinc (Zn); about 0.02 weight percent Max strontium (Sr); about 0.50 weight percent Max cerium (Ce); about 0.01 weight Max percent boron (B); and a remaining weight percent aluminum (Al). The aluminum alloy provides an as-cast yield strength of greater than 130 Megapascals (MPa), ultimate tensile strength of greater than 260 MPa, and elongation of greater than 6% without the need for heat treatment.

Abstract: A conversion coating composition for treating a metal surface contains one or more Group IV metal ions, such as titanium, zirconium and/or hafnium metal ions, and one or more phenalkamine compounds, such as a Mannich addition product of cardanol, formaldehyde and a polyamine. The conversion coating composition is an aqueous acidic solution or dispersion. Metal surfaces contacted with the conversion coating composition have enhanced corrosion resistance and paint adhesion characteristics.

Abstract: This steel sheet has a predetermined chemical composition, the metallographic structure includes, by an area ratio, ferrite, bainite and pearlite: 0 to 10% in total, residual austenite: 1 to 15%, and a remainder that is martensite, and a proportion of martensite or residual austenite having a width of 50 nm to 2 ?m present at a prior austenite grain boundary is 70% or more.

Abstract: An electrical steel sheet having excellent coating peel resistance that can be exhibited during a stamping process, so that sticking of the coating to a die is inhibited. The electrical steel sheet has an insulating coating disposed on at least one surface of the electrical steel sheet. The insulating coating (i) includes a composite comprising P and Al, (ii) has an aspect ratio in a range of 1 to 10, and (iii) has a thickness in a range of 500 nm to 2000 nm. The composite has a particle diameter in a range of 10 nm to 1000 nm.

Abstract: A method (400) for applying a coating to a substrate (124) includes spraying (414) an aluminum-based coating layer (120) on the substrate. The coating layer is then infiltrated (420) with an aqueous solution (610). The solution comprises: a source of chromium; and potassium hexafluorozirconate.

Abstract: Provided is a hot-pressed member that combines both high strength of 1850 MPa or more in TS and excellent delayed fracture resistance. A hot-pressed member comprises: a predetermined chemical composition; a microstructure in which a prior austenite average grain size is 8 ?m or less, a volume fraction of martensite is 95% or more, and a volume fraction of granular carbide of 0.1 ?m or more in grain size is 0.10% to 4.0%; a Ni diffusion region of 2.0 ?m or more in a depth direction in a surface layer; and a tensile strength of 1850 MPa or more.

Abstract: A method for manufacturing a cover member for electronic devices according to certain embodiments of the present disclosure may comprise: a step for forming a magnesium plate; a step for performing primary CNC processing on the magnesium plate using a predetermined cutting oil; a step for performing a primary pretreatment on the magnesium plate using chromate or micro arc oxidation (MAO); a step for performing a primary surface-treatment on the magnesium plate by bake-coating or electrodeposition coating; a step for performing secondary CNC processing on a first region of the magnesium plate using an alcohol-containing cutting oil; a washing and drying step; a step for performing a secondary pretreatment for preventing oxidation on the first region; and a step for performing a secondary surface-treatment on the first region by bake-coating or electrodeposition coating.

Abstract: Described herein is an alternative acidic, aqueous composition for effectively phosphating metallic surfaces, which includes, besides zinc ions, manganese ions, phosphate ions and, preferably, nickel ions, at least one accelerator of a formula R1R2R3C—NO2 where each of the substituents R1, R2 and R3 on the carbon atom is selected, independently of the others, from the group consisting of hydroxymethyl, 1-hydroxyethyl, 2-hydroxyethyl, 1-hydroxypropyl, 2-hydroxypropyl, 3-hydroxypropyl, 1-hydroxy-1-methylethyl and 2-hydroxy-1-methylethyl. Also described herein are a method for producing such a composition, an alternative method for phosphating metallic surfaces, and a method of using phosphate coatings produced accordingly.

Abstract: An aqueous passivation composition, having a pH of less than 3, comprising: i) a source of trivalent chromium ions; ii) at least one ?-hydroxycarboxylic acid having general formula (I): R1CH(OH)COOH (I); wherein: R1 represents a hydrogen atom, a C1-C4 alkyl group, a C2-C6 alkenyl group, a C1-C6 alkoxy group, a C3-C6 cycloalkyl group or a C6-C10 aryl group; iii) phosphoric acid; iv) at least one water-soluble polyphosphonic acid or a water-soluble salt thereof, said polyphosphonic acid having general formula (II): Z—[—P?O(OH)2]n (II); in which: n is at least 2; and Z is a connecting organic moiety having an effective valency of n, said polyphosphonic acid including at least two phosphonic groups separated by an alkylene bridge having 1 or 2 carbon atoms (C1-C2 alkylene); and v) at least one divalent metal cation; wherein said composition is substantially free of: nitrate and fluoride anions, and hexavalent chromium.

Abstract: Disclosed is a phosphate-free aqueous acidic conversion coating comprising zinc sulfate and sulfuric acid. The conversion coating finds special use as a conversion coating to metal substrates prior to application of a cold forming lubricant or prior to application of a paint. The conversion coatings according to the present disclosure avoid the issues associated with phosphate containing conversion coatings but provide similar benefits to phosphate-based conversion coatings. Optional components of the conversion coating solutions include one or more of pH adjustment neutralizers, coating stabilizers, coating accelerators, coating refiners, etchants, paint adhesion promotors and mixtures thereof. In an additional option, manganese oxide can be used in place of zinc oxide.

Abstract: To provide a sanitary facility member having excellent ease of contamination removal and excellent persistence of ease of contamination removal. A sanitary facility member including: a base material, at least the surface of which includes a metal element; a metal oxide layer formed on the surface of the base material; and an organic layer provided on the metal oxide layer; wherein the metal element is at least one element selected from the group consisting of Cr, Zr, and Ti, the metal oxide layer includes at least the metal element and an oxygen element, and the organic layer is bonded to the metal oxide layer by bonding (M-O—P bonding) of the metal element (M) and a phosphorus atom (P) of at least one group (X) selected from a phosphonic acid group, a phosphoric acid group, and a phosphinic acid group via an oxygen atom (O), the group X being bonded to a group R (where R is a hydrocarbon or a group having an atom other than carbon in 1 or 2 locations in a hydrocarbon group).