roughness-induced crack closure
roughness-induced crack closure
粗糙度引起的裂纹闭合
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The short cracks deflect more severe in coarse grain structure than in fine grain one, result in roughness induced crack closure effect, therefore exhibit slow crack growth rate.
粗晶组织比细晶组织的裂纹偏折更大，粗糙度诱发闭合效应更强，因而裂纹扩展较幔。
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