滚动轴承钢冶金质量与疲劳性能现状及高端轴承钢发展方向
俞峰1,2,陈兴品1,徐海峰2,董瀚3,翁宇庆2,曹文全2()
Current Status of Metallurgical Quality and Fatigue Performance of Rolling Bearing Steel and Development Direction of High-End Bearing Steel
YU Feng1,2,CHEN Xingpin1,XU Haifeng2,DONG Han3,WENG Yuqing2,CAO Wenquan2()

图3. 2种工艺下8Cr4Mo4V钢的铸态组织

Fig.3. Cast microstructures of 8Cr4Mo4V steel produced by electroslag remelting continuous directional solidification (ESR-CDS) (a) and VIM+VAR (b) processes