Abstract: A signal processing apparatus able to raise a processing capability in processing accompanying access to a storing means is provided. Stream control units (SCU) 203—0 to 203—3 access data at an external memory system or local memories 204—0 to 204—3 according to a thread under control from a host processor. Processor units (PU) arrays 202—0 to 202—3 perform image processing by a different thread from the thread of the SCUs 203—0 to 203—3.

Abstract: A method for producing a low thermal expansion Ni-base superalloy including the steps of subjecting the alloy to a solution heat treatment under the condition of at a temperature of 1000 to 1200° C. and subjecting the alloy to either a carbide stabilizing treatment for making aggregated carbides on grain boundaries and stabilizing the carbides under the conditions of at a temperature of not less than 850° C. and less than 1000° C. and for 1 to 50 hours, or a carbide stabilizing treatment for making aggregated carbides on grain boundaries and stabilizing the carbides by cooling from the temperature in the solution heat treatment to 850° C. at a cooling rate of 100° C. or less per hour. The method also including the steps of subjecting the alloy to a first aging treatment for precipitating y? phase under the conditions of at a temperature of 720 to 900° C.

Abstract: The present invention provides: a ferritic stainless steel cast iron including: Fe as a main component; C: 0.20 to 0.40 mass %; Si: 1.00 to 3.00 mass %; Mn: 0.30 to 3.00 mass %; Cr: 12.0 to 30.0 mass %; and one of Nb and V, or both of Nb and V in total: 1.0 to 5.0 mass %, the ferritic stainless steel cast iron satisfying the following formula (1): 1400?1562.3?{133WC+14WSi+5WMn+10(WNb+WV)}?1480??(1) wherein, WC (mass %), WSi (mass %), WMn (mass %), WCr (mass %), WNb (mass %), WV (mass %) and WCu (mass %) are contents of C, Si, Mn, Cr, Nb, V and Cu, respectively; a process for producing a cast part from the ferritic cast steel; and the cast part.

Abstract: The present invention relates to a low density titanium alloy, containing: 7.1 to 10.0 mass % of Al; 0.1 to 3.0 mass % of Fe; 0.01 to 0.3 mass % of O; 0.5 mass % or less of N; 0.5 mass % or less of C; and a remainder being Ti and inevitable impurities; a golf club head using the alloy; and a production method for a low density titanium alloy part using the alloy. The alloy of the invention may further contain 0.01 to 2.0 mass % of V. The alloy of the invention has higher specific strength as compared to the Ti-6Al-4V alloy, is excellent in hot workability, and is reduced in cost.

Abstract: A signal processing apparatus able to raise a processing capability in processing accompanying access to a storing means is provided. Stream control units (SCU) 203_0 to 203_3 access data at an external memory system or local memories 204_0 to 204_3 according to a thread under control from a host processor. Processor units (PU) arrays 202_0 to 202_3 perform image processing by a different thread from the thread of the SCUs 203_0 to 203_3.

Abstract: Disclosed is a heat resistant cast steel having not only good heat resistance but also good thermal fatigue resistance, which is suitable as the material for engine parts, particularly, such as exhaust gas manifold and turbo-housing, which are repeatedly exposed to such a high temperature as 900° C. or higher. The heat resistant cast steel comprises, by weight percent, C: 0.2-1.0%, Ni: 8.0-45.0%, Cr: 15.0-30.0%, W: up to 10% and Nb: 0.5-3.0%, provided that [%C]-0.13[%Nb]: 0.05-0.95%, the balance being Fe and inevitable impurities, and the cast structure contains dispersed therein, by atomic percent, MC-type carbides: 0.5-3.0% and M23C6-type carbides: 0.5-10.0%. The matrix of the steel is an austenitic phase mainly composed of Fe—Ni—Cr and the steel has the mean coefficient of thermal expansion in the range from room temperature to 1050° C. up to 20.0×10?4 and a tensile strength in the temperature range up to 1050° C. 50 MPa or higher.

Abstract: The present invention provides: a ferritic stainless steel cast iron including: Fe as a main component; C: 0.20 to 0.40 mass %; Si: 1.00 to 3.00 mass %; Mn: 0.30 to 3.00 mass %; Cr: 12.0 to 30.0 mass %; and one of Nb and V, or both of Nb and V in total: 1.0 to 5.0 mass %, the ferritic stainless steel cast iron satisfying the following formula (1): 1400?1562.3?{133WC+14WSi+5WMn+10(WNb+WV)}?1480??(1) wherein, WC (mass %), WSi (mass %), WMn (mass %), WCr (mass %), WNb (mass %), WV (mass %) and WCu (mass %) are contents of C, Si, Mn, Cr, Nb, V and Cu, respectively; a process for producing a cast part from the ferritic cast steel; and the cast part.

Abstract: A high-nitrogen austenitic stainless steel, containing 0.005 mass %?C?0.25 mass %; 15.0 mass %?Cr?35.0 mass %; 0.2 mass %<Mn<10.0 mass %; 0.05 mass %?Mo?8.0 mass %; 0.01 mass %?Cu?4.0 mass %; 0.01 mass %?Ni<5.0 mass %; 0.8 mass %<N?1.8 mass %; Si?2.0 mass %; P?0.03 mass %; S?0.05 mass %; Al?0.030 mass %; 0?0.020 mass %, and the balance substantially including Fe and impurities, and having a PRE (=(Cr+3.3Mo+16N)/Mn (mass %)) of not less than 5 and a CRE (=Cr+1.5Mo+2N+Cu (mass %)) of not less than 27.

Abstract: A low thermal expansion Ni-base superalloy contains, by weight % (hereinafter the same as long as not particularly defined) C: 0.15% or less; Si: 1% or less; Mn: 1% or less; Cr: 5 to 20%; at least one of Mo, W and Re of Mo+½(W+Re) of 17 (exclusive) to 25%; Al: 0.2 to 2%; Ti: 0.5 to 4.5%; Fe of 10% or less; at least one of B: 0.02% and Zr: 0.2% or less; a remainder of Ni and inevitable impurities; wherein the atomic % of Al+Ti is 2.5 to 7.0.

Abstract: An exhaust valve for automobile engines, which is durable at such a high temperature as 900° C., and exhibits high fatigue strength and high oxidation resistance is disclosed. The exhaust valve is made of a Ni-based alloy consisting essentially of, by weight %. C: 0.01-0.15%, Si: up to 2.0%, Mn: up to 1.0%, P: up to 0.02%, S: up to 0.01%, Co: 0.1-15%, Cr: 15-25%, one or two of Mo: 0.1-10% and W: 0.1-5% in such amount that Mo+½ W; 3-10%, Al: 1.0-3.0%, Ti: 2.0-3.5%, provided that, by atomic %, Al+Ti: 6.3-8.5% and Ti/Al ratio: 0.4-0.8, and further, by weight %, B: 0.001-0.01%, Fe: up to 3%, and the balance of Ni and inevitable impurities by hot forging to give the form of an exhaust valve and subjecting to solid solution at 1000-1200° C. and aging at 700-950° C.

Abstract: A welding wire contains 0.025 mass % or less C, 1.3 mass % or less Si, 2.0 mass % or less Mn, 10 to 25 mass % Cr, 0.04 to 0.2 mass % N, Al and Ti in amounts (mass %) satisfying the relationship: e?800(x?0.05)2×e?300(y?0.08)2?0.5, where x and y represent contents (mass %) of Al and Ti, respectively, O in an amount (mass %) satisfying the relationship: z<(x+y?0.01)/0.5, where z represents a total amount (mass %) of oxygen in the welding wire, and the balance being Fe and unavoidable impurities. Gas-shielded welding is performed using the welding wire and a shielding gas containing Ar and at least one of O2 and CO2, wherein, provided that volume % of the O2 and CO2 contained in the shielding gas are p and q, respectively, the shielding gas satisfies the relationships: p?10; q?50; and p+q?(x+y?0.01?0.5 z)/0.0006, whereby a weld improved in high-temperature resistance and crack resistance can be formed.

Abstract: This invention provides a high-nitrogen austenitic stainless steel superior to the conventional one both in the corrosion resistance and strength, despite a low Ni content, characterized in having a Fe content of 50% by mass or more; containing Cr: 15.0% by mass to 35.0% by mass, Mo: 0.05% by mass to 8.0% by mass %, Mn: 0.2% by mass to 10.0% by mass, Cu: 0.01% by mass to 4.0% by mass and N: 0.8% by mass to 1.5% by mass, both ends inclusive, having a C content of 0.20% by mass or less, a Si content of 2.0% by mass or less, a P content of 0.03% by mass or less, a S content of 0.05% by mass or less, a Ni content of 0.5% by mass or less, an Al content of 0.03% by mass or less, and an 0 content of 0.020% by mass or less; wherein the contents of Cr, Mo, N and Mn are adjusted so that a compositional parameter ? expressed by the equation: ??(WCr+3.

Abstract: The present invention provides a method for producing a low thermal expansion Ni-base superalloy, which includes: preparing an alloy including, by weight %, C: 0.15% or less, Si: 1% or less, Mn: 1% or less, Cr: 5 to 20%, at least one of Mo, W and Re, which satisfy the relationship Mo+½(W+Re): 17 to 27%, Al: 0.1 to 2%, Ti: 0.1 to 2%, Nb and Ta, which satisfy the relationship Nb+Ta/2: 1.5% or less, Fe: 10% or less, Co: 5% or less, B: 0.001 to 0.02%, Zr: 0.001 to 0.2%, a reminder of Ni and inevitable components; subjecting the alloy to a solution heat treatment under the condition of at a temperature of 1000 to 1200° C.; subjecting the alloy to either a carbide stabilizing treatment for making aggregated carbides on grain boundaries and stabilizing the carbides under the conditions of at a temperature of not less than 850° C. and less than 1000° C.

Abstract: A Ni-base alloy which has excellent resistance to permanent set at high temperature and which can be produced at low cost, a heat-resistant spring made of the Ni-base alloy, and a process for producing the spring. The Ni-base alloy of the present invention consists of 0.01 to 0.15 mass % of C, 2.0 mass % or less of Si, 2.5 mass % or less of Mn, 12 to 25 mass % of Cr, 5.0 mass % or less of Mo and/or 5.0 mass % or less of W on condition that Mo+W/2 does not exceed 5.0 mass % or less, 1.5 to 3.5 mass % of Ti, 0.7 to 2.5 mass % of Al, 20 mass % or less of Fe, and the balance of Ni and unavoidable impurities. The ratio of Ti/Al in terms of atomic percentage ranges from 0.6 to 1.5 and the total content of Ti and Al ranges from 4.0 to 8.5 atomic %.

Abstract: Disclosed is a nickel-base super heat resistant cast alloy, from which turbine wheels of automobile engines can be manufacture by casting. The alloy consists essentially of, by weight %, C: 0.02-0.50%, Si: up to 1.0%, Mn: up to 1.0%, Cr: 4.0-10.0%, Al: 2.0-8.0%, Co: up to 15.0%, W: 8.0-16.0%, Ta: 2.0-8.0%, Ti: up to 3.0%, Zr: 0.001-0.200% and B: 0.005-0.300% and the balance of Ni and inevitable impurities, provided that, [%Al]+[%Ti]+[%Ta], by atomic %, amounts to 12.0-15.5%, that it contains &ggr;/&ggr;′-eutectoid of, by area percentage, 1-15%, that it contains carbides of, by area percentage, 1-10%, and that the “M-value” determined by the alloy composition is in the range of 93-98. The turbine wheels withstand temperature increase of exhaust gas.

Abstract: Disclosed is a heat resistant alloy for exhaust valves, in which Ni-content is constrained to at maximum 62% due to the material cost, while the strength is maintained equal or better to those of conventional alloys and the strength is kept even after use at high temperature for a long period of time. The alloy has the composition essentially consisting of, by weight %, C: 0.01-0.2%, Si: up to 1.0%, Mn: up to 1.0%, P: up to 0.02%, S: up to 0.01%, Ni: 30-62%, Cr: 13-20%, W: 0.01-3.00%, Mo: up to 2.0%, provided that Mo+0.5 W: 1.0-2.5%, Al: 0.7% or higher and less than 1.6%, Ti: 1.5-3.0%, Nb: 0.5-1.5%, B: 0.001-0.010%, provided that [% Ti]/[% Al]: 1.6 or more to less than 2.0, and the balance of Fe and inevitable impurities. Optional components are I) at least one of Mg: 0.001-0.030%, Ca: 0.001-0.030% and Zr: 0.001-0.100%, II) Cu: up to 2.0%, and III) V: 0.005-1.00%.

Abstract: A high-strength, high corrosion-resistant and non-magnetic stainless steel which is further excellent in strength and corrosion resistance and safe in the living body and also can stand against various corrosive environments. The stainless steel comprises 0.15% by weight or less of C, 1.0% or less of Si, 3.0 to 12.0% of Mn, 0.030% or less of P, 0.50% or less of Ni, 15.0 to 21.0% of Cr, 0.70 to 1.50% of N, 0.020% or less of Al and 0.020% or less of O, and a remainder of Fe and inevitable impurities.

Abstract: A free-cutting Ni-base heat-resistant alloy excellent in the high-temperature strength and corrosion resistance was proposed. The alloy contains Ni as a major component, 0.01 to 0.3 wt % of C and 14 to 35 wt % of Cr, and further contains at least one element selected from Ti, Zr and Hf in a total amount of 0.1 to 6 wt %, and S in an amount of 0.015 to 0.5 wt %. The alloy has dispersed in the matrix thereof a machinability improving compound phase, where such phase contains any one of Ti, Zr and Hf as a major constituent of the metal elements, essentially contains C and either S or Se as a binding component for such metal elements. The alloy also satisfies the relations of WTi+0.53WZr+0.27WHf>2WC+0.75WS and WC>0.37WS, where WTi represents Ti content (wt %), WZr represents Zr content (wt %), WHf represents Hf content (wt %), WC represents C content (wt %) and WS represents S content (wt %).

Abstract: Disclosed is a corrosion resistant steel suitable for the material of printer shafts. The steel has good machinability, corrosion resistance sufficient for ordinary indoor use without plating the product surfaces, and improved straightness after wire drawing and cold workability, and further, is less expensive. Alloy composition is, by weight percent, C: 0.005-0.200%, Si: up to 1.0%, Mn: up to 2.0%, P: up to 0.05%, Cu: up to 2.0%, Ni: up to 2.0%, Cr: 2.0-9.0%, one or both of Ti and Zr: [Ti%]+0.52[Zr%]=0.03-1.20%, one or both of S: 0.01-0.50% and Se:0.01-0.40%, N: up to 0.050% and O: up to 0.030%, and the balance of Fe and inevitable impurities, with the conditions of [S%]≧32[C%]/12, and 0<L ≦0.5, wherein L=4[C%]/([Ti%]+0.52[Zr%]). The inclusions therein are, Ti-based, Zr-based, or Ti—Zr-based compound or compounds containing C and one or both of S and Se.

Abstract: A welding wire contains 0.025 mass % or less C, 1.3 mass % or less Si, 2.0 mass % or less Mn, 10 to 25 mass % Cr, 0.04 to 0.2 mass % N, Al and Ti in amounts (mass %) satisfying the relationship: e−800(x−0.05)2×e−300(y−0.08)2≧0.5, where x and y represent contents (mass %) of Al and Ti, respectively, O in an amount (mass %) satisfying the relationship: z<(x+y−0.01)/0.5, where z represents a total amount (mass %) of oxygen in the welding wire, and the balance being Fe and unavoidable impurities. Gas-shielded welding is performed using the welding wire and a shielding gas containing Ar and at least one of O2 and CO2, wherein, provided that volume % of the O2 and CO2 contained in the shielding gas are p and q, respectively, the shielding gas satisfies the relationships: p≦10; q≦50; and p+q≦(x+y−0.01−0.5z)/0.0006, whereby a weld improved in high-temperature resistance and crack resistance can be formed.