深冷处理时间对M2高速钢红硬性的影响

段元满, 朱丽慧, 吴晓春, 顾炳福

Effect of Deep Cryogenic Treatment Time on Red Hardness of M2 High Speed Steel

DUAN Yuanman, ZHU Lihui, WU Xiaochun, GU Bingfu

表1 M2高速钢的化学成分 (%，质量分数)

Table 1 Chemical composition of M2 high speed steel (%, mass fraction)

C Si Mn P S Cr Mo W V Fe 0.850 0.228 0.280 0.067 0.020 4.340 5.370 6.380 2.100 Bal.