The relation between the contact fatigue life and the residual stresses is more complex.
残余应力与疲劳寿命的关系较为复杂。
Through experimental comparison, the new process method can significantly improve the contact fatigue life of the coating layer.
通过实验对比，这种新工艺方法可以显著地提高涂层的接触疲劳寿命。
The test indicates that contact fatigue life and wear resistance of surface quenched casting steels and Bainite quenched spherical cast iron are increased largely.
试验表明：经过表面淬火的铸钢和经过贝氏体淬火的球墨铸铁，其接触疲劳寿命和耐磨性大幅度提高。
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