真空分级淬火对8Cr4Mo4V钢组织和性能的影响

于兴福, 王盛宇, 王宇蓬, 杨树新, 杨宇, 苏勇, 冯小川

Effect of Vacuum Graded Quenching on Microstructure and Mechanical Properties of 8Cr4Mo4V Steel

YU Xingfu, WANG Shengyu, WANG Yupeng, YANG Shuxin, YANG Yu, SU Yong, FENG Xiaochuan

表2 600℃×10 min真空分级淬火后8Cr4Mo4V钢中碳化物的类型

Table 2 Carbide types of 8Cr4Mo4V steel after vacuum graded quenching at 600℃ for 10 min (%, atomic fraction)

Carbides C Mo V Cr Fe Types A 27.33 4.07 1.34 4.13 63.14 M6C B 32.02 6.37 2.12 4.3 55.19 M6C C 21.73 6.19 5.28 4.64 62.17 M2C D 47.03 9.93 9.49 4.31 29.23 MC