The rolling contact fatigue life, hardness, residual stresses and the amount of retained austenite of the specimens were measured.
测定了试样的接触疲劳寿命、硬度、残余应力和残余奥氏体量。
The presence of a certain amount of retained austenite improves the resistance to contact fatigue failure. The lath martensite has better resistance than the plate twin martensite.
金相组织对钢的接触疲劳寿命有重要作用：板条马氏体组织比片状马氏体组织抗接触疲劳性能好，适量的残余奥氏体可改善钢的抗接触疲劳性能。
The results show that polygonal ferrite, granular bainite and larger amount of stabilized retained austenite can be obtained after hot rolling.
结果表明，热轧后能够获得多边形铁素体、粒状贝氏体和大量稳定的残留奥氏体组织。
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