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POWDER FOR HIGH SPEED TOOL STEEL AND POWDER HIGH SPEED TOOL STEEL
POWDER FOR HIGH SPEED TOOL STEEL AND POWDER HIGH SPEED TOOL STEEL
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机译:高速工具钢的粉末和高速工具钢的粉末
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摘要
PROBLEM TO BE SOLVED: To provide powders for high speed tool steel capable of attaining the prolongation of the service life of a cutting tool by improving a wear resistance and toughness, and to provide powder for high speed tool steel useful for obtaining the same high speed tool steel. ;SOLUTION: This powder for high speed tool steel has a prescribed chemical componential composition and further satisfies the following inequalities and formulae of (1) to (4): 67.85.85×ΔC+0.15×[Co]+0.10×Weq+64.471......(1), ΔC=[C]-(2×[Mo]+[W])×0.017-0.22×[V]-0.19......(2), Weq=[W]+2×[Mo]......(3), and ΔC≥20......(4); wherein, [Co], [C], [Mo], [W] and [V], respectively, denote the contents (mass %) of Co, C, Mo, W and V.;COPYRIGHT: (C)2001,JPO
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