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轴承圈和滚动体中的显微组织,残余奥氏体数量和内应力对轴承的使用性能有很大的影响。有关文献指出了在下贝氏体形成区15和15钢的淬火效果,淬火保证残余奥氏体数量大,冲击韧性高,硬度为HRC58～60
Bearing rings and rolling elements in the microstructure, the amount of residual austenite and internal stress on the bearing performance has a significant impact. The relevant literature points out the quenching effect of steels 15 and 15 in the lower bainite region. Quenching ensures a large amount of retained austenite and a high impact toughness with a HRC of 58-60