对50CrVA高强弹簧钢超高周疲劳损伤机制的影响*

周蒙蛟,王弘,汪奔

Ultrahigh Cycle Fatigue Damage Mechanisms of High Strength 50CrVA Spring Steel Regulated by Heat Treatment Process

Mengjiao ZHOU,Hong WANG,Ben WANG

图2 50CrVA弹簧钢不同热处理状态下的微观组织光学显微镜照片

Fig.2 Optical microscope (OM) images of 50CrVA spring steeltreated by (a) quenched and tempered (QT) and (b) annealed (AD) process