And, wear mechanism were mainly abrasive wear and contact fatigue wear.
磨损机理主要是磨粒磨损和接触疲劳。
The experiments on contact fatigue and bearing life have been conducted.
进行了接触疲劳、轴承寿命试验。
Spalling was a major form of contact fatigue failures in nitriding steel.
氮化钢的主要接触疲劳破坏形式是剥落。
Contact fatigue tester is very sensitive to the environment when it runs.
接触疲劳试验机在运行过程中，对外界环境的干扰十分敏感。
The mechanism of the good contact fatigue resistance of the alloy was investigated.
同时，对该合金优良的接触疲劳抗力的来源进行了探讨。
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。
The result shows that rolling contact fatigue failures caused swap block defects of rail.
结果表明，掉块缺陷的形成是由于钢轨滚动接触疲劳伤损所致。
The tester may be used to evaluate contact fatigue performances of balls made of various materials.
该试验机可用于评定各种材料轴承用球的滚动接触疲劳性能。
The numerical results show that the gear contact fatigue life is connected with gear rotational velocity.
数值计算结果表明：齿轮传动的接触疲劳寿命与齿轮转速戚息相关。
But the study on the rolling contact fatigue failure mechanism of super hard material coati-ngs is in grope.
但是目前对于超硬涂层材料滚动接触疲劳失效机理的研究还处于探索之中。
This paper discusses wear life of laser cladding samples with the aid of the theory of contact fatigue wear.
利用接触疲劳磨损理论讨论激光熔覆试样的疲劳磨损寿命问题。
Designs o? The closed soft surface gear transmissions are generally restricted by the contact fatigue strength.
闭式软齿面齿轮传动设计中，常受齿面接触疲劳强度的限制。
The failure forms of cold work roll including contact fatigue crack, spalling, inclusion crack and wear are discussed.
讨论了冷轧工作辊接触疲劳裂纹、剥落、夹杂物裂纹和磨损等失效形式。
Bearing contact fatigue failure of the working surface by means of alternating the role of stress arising from failure.
接触疲劳失效系指轴承工作表面受到交变应力的作用而产生失效。
Therefore, it is necessary and feasible to explore the effect of gear rotational speed on the gear contact fatigue life.
所以，探讨齿轮转速对齿轮传动接触疲劳寿命影响是必要且可行的。
Under the condition of our experiments, the main forms of contact fatigue failure are deep-spalling and shallow - spalling.
在本试验条件下，接触疲劳失效的主要形式为深层剥落和浅层剥落。
Surface defects in ceramic bearing balls may significantly affect ball strength and reduce rolling contact fatigue lifetime.
陶瓷轴承球的表面缺陷会严重降低球的强度和滚动接触疲劳寿命。
Static stress field can be reliably applied to analyse initiation and extension of contact fatigue cracks under motive load.
证明了用静应力场分析动载下接触疲劳裂纹形成与扩展的可靠性；
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。
Experiments of contact fatigue under the action of combined stresses-Hertsian stress and rotating bending stress were carried out.
作者就赫兹应力和旋转弯曲应力联合作用下的接触疲劳进行实验研究。
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 intensity of bending fatigue and contact fatigue for gears is one of the important indices (indexes) to judge gear service life.
齿轮的弯曲疲劳强度与接触疲劳强度是判断齿轮使用寿命的重要指标之一。
Effects of nano diamond particles on contact fatigue life of steel ball were evaluated on a self-made ball-rod contact fatigue tester.
利用自制的球-棒疲劳试验机，研究了纳米金刚石粉对钢球接触疲劳寿命的影响。
Heat treatment can increase the tensile strength and the hardness of the rail steel, and the contact fatigue strength is also increased.
通过热处理可提高轨钢的强度及硬度，接触疲劳强度也随之提高。
The results showed that failure morphology was of typical contact fatigue characteristics, and two modes of fatigue crack formation worked.
结果表明，失效形貌呈典型的接触疲劳特征，两种疲劳裂纹形成模式同时存在。
A new explanation of reason why the rolling contact fatigue life can be prolonged by residual compressive stress and retained austenite was advanced.
并对残余压应力和残余奥氏体可以提高接触疲劳寿命的原因提出了新的解释。
To improve wear resistance and contact fatigue strength of high loaded mechanical parts, one of best effective methods is to improve surface hardness.
要提高承受高应力工件的使用寿命，提高其硬度是有效的方法之一。
To improve wear resistance and contact fatigue strength of high loaded mechanical parts, one of best effective methods is to improve surface hardness.
要提高承受高应力工件的使用寿命，提高其硬度是有效的方法之一。
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