Rough surface is easy to generate V shape of stress concentration, which reduce fracture strength.

粗糙表面的晶粒间易产生V形口，导致应力集中，降低了膜的断裂强度。

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Rough surface is easy to generate V shape of stress concentration, which reduce fracture strength.

粗糙表面的晶粒间易产生V形口，导致应力集中，降低了膜的断裂强度。

youdao