W 系高 V 焼結高速度鋼の材料特性に及ぼす窒素および炭素当量の影響

概要

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The effect of systematic variation in nitrogen and/or carbon content upon the properties of cutting tool materials were investigated for JIS SKH10 series high-speed steels (0.6 to 1.5%C, 0 to 1.0%N, 4%Cr, 12%W, 5%V and 5%Co). These steels were produced by using gas atomized powders and HIP processing. The following results were obtained in this study. 1) Effect of nitrogen on incipient melting temperature is greater than that of carbon. Compared with JIS SKH51 series, effect of nitrogen is larger and incipient melting temperature decreases about 4℃ with increasing 0.1%N. 2) Bend strength increases with replacement of carbon by nitrogen. 3) From the result of Ohogoshi's wear test, improvement of adhesive wear resistance was found on the steel with more than 0.4%N.
社団法人日本鉄鋼協会の論文
1986-10-01