进给速度对冷辗扩GCr15轴承套圈硬度的影响
苏勇1, 刘灿1, 张宏伟2, 于兴福3(), 郝天赐4
Effect of Deformation Rate on Microstructure and Hardness of Cold-rolled GCr15 Steel Bearing Ring
SU Yong1, LIU Can1, ZHANG Hongwei2, YU Xingfu3(), HAO Tianci4

图3. GCr15轴承钢的应力-应变曲线

Fig.3. Stress strain curves of GCr15 bearing steel (a) nominal stress-strain curve; (b) true stress-strain curve