Residual compression ACTS on the plastic deformation layer.
残余压应力作用在塑性变形层内。
When abrasive grains impacted on the work piece surface, the top layer atomics are removed, plastic deformation appears at the same time.
纳米级的磨粒冲击到工件表面，在以原子级去除的同时伴随着塑性变形的发生。
The advantage of this method consists in the fact that neither a protective layer nor creep properties are necessary and that question about clastic or plastic deformation can be avoided.
它的优点在于不必给试样单面施加抗氧化涂层，不需要研究材料的蠕变性质，也不必讨论试样的形变属于弹性形变还是属于塑性形变。
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