金属材料在海洋大气环境下会发生环境敏感断裂。
Metal and its alloy can occur environment sensitive fracture in marine atmosphere.
拉伸强度呈下降趋势，而拉伸断裂伸长率以及冲击韧性则呈先增大后减小的变化趋势，弯曲性能对温湿度交变的环境不敏感。
Tensile strength decreased, while the tensile break extension percentage increased first and then decreased, flexural properties was not sensible to the changing humiture.
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