Al对42CrMo螺栓钢淬透性及组织的影响

吕超然, 徐乐, 史超, 刘进德, 蒋伟斌, 王毛球

Effect of Al on Hardenability and Microstructure of 42CrMo Bolt Steel

LU Chaoran, XU Le, SHI Chao, LIU Jinde, JIANG Weibin, WANG Maoqiu

表1 实验用钢的化学成分 (mass fraction / %)

Table 1 Chemical compositions of the experimental steel

Sample Steel Als B Ti N 1# 42CrMo - - - 0.0028 2# Al-Ti 0.040 - 0.028 0.0065 3# Al-B 0.074 0.0012 - 0.0076