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首页> 外文期刊>Philosophical Magazine Letters >Cracking along mechanical twin boundaries during fatigue deformation in a ferritic stainless steel crystal
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Cracking along mechanical twin boundaries during fatigue deformation in a ferritic stainless steel crystal

机译：铁素体不锈钢晶体疲劳变形过程中沿机械孪晶边界开裂

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摘要

The interaction between a fatigue crack and the mechanical twins which are generated in front of the crack tip has been investigated in a compact tension specimen of a Fe-30 wt.% Cr alloy crystal. Significant slip localization and resultant persistent-slip-band-like damage were found along the twin boundaries. It was frequently observed that the fatigue crack captured by the damaged twin boundaries was propagated along these.
机译：在Fe-30 wt。％Cr合金晶体的致密拉伸试样中，研究了疲劳裂纹与在裂纹尖端前方产生的机械孪晶之间的相互作用。沿孪生边界发现了明显的滑移局部化和由此产生的持续滑移带状损坏。经常观察到，由损坏的孪晶边界捕获的疲劳裂纹沿着这些裂纹扩展。

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