几种表面强化的试件与不锈钢的磨损表明，主要磨损形式为磨粒磨损和疲劳剥落。
Grain wear and fatigue wear were the main wear styles in the process of abrasion of all surface-strengthened samples.
试件端面效应直接影响试件内的应力分布、试件破坏形式和剪切带图案。
End constraint has an influence on distribution of stress in rock specimen, failure pattern and pattern of shear zone.
本文通过三组不同试件的试验，对磨擦型和承压型两种高度螺栓连接形式的工作机理和失效形式进行了试验研究。
Based on the experiment of three different groups of samples the working principle and the failure types of the friction connection and the bearing connection high strength bolt were studied.
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