Fatigue tests are carried out on the parts that have been into service for some time.
用使用过一段时间的零件进行疲劳试验。
The tension overload fatigue tests are carried out, which are corroded under the accelerated corrosion environment in this paper.
首先用加速腐蚀环境谱对无裂纹试件进行腐蚀试验，然后进行拉伸超载疲劳试验。
The tests for the ductile fracture toughness and the contact fatigue are also carried out for examining serviceability and durability of austenite-bainite ductile cast iron.
为了考察奥氏体-贝氏体球铁的可靠性和使用寿命，还进行了延性断裂韧度与接触疲劳性能的试验。
Work conditions of pins in work attachment of loaders are analyzed in the article. Factors influencing the fatigue strength of pins were found out. Comparison tests were carried out on these factors.
分析了装载机工作装置销轴的工作状况，找出影响销轴疲劳强度的因素，并对这些因素进行对比试验。
Work conditions of pins in work attachment of loaders are analyzed in the article. Factors influencing the fatigue strength of pins were found out. Comparison tests were carried out on these factors.
分析了装载机工作装置销轴的工作状况，找出影响销轴疲劳强度的因素，并对这些因素进行对比试验。
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