Al42CrMo螺栓钢淬透性及组织的影响
吕超然1, 徐乐1(), 史超2, 刘进德3, 蒋伟斌4, 王毛球1
Effect of Al on Hardenability and Microstructure of 42CrMo Bolt Steel
LU Chaoran1, XU Le1(), SHI Chao2, LIU Jinde3, JIANG Weibin4, WANG Maoqiu1

图4. 实验用钢距淬火端不同距离显微组织

Fig.4. Microstructures of the tested steels of 1# (a, b), 2# (c, d) and 3# (e, f) at 25 mm (a, c, e) and 35 mm (b, d, f) distances from the quenched end