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本文运用线弹性力学技术,对316型不锈钢焊件在实际使用中初次出现或未被探测出的微小裂纹扩展行为进行了论述,并为预测一定温度范围内的疲劳裂纹扩展率建立了方程式。
In this paper, linear elastic mechanics is used to describe the microscopic crack growth behaviors of 316 stainless steel welded parts first or undetected in actual use, and the equation is established for predicting the fatigue crack growth rate in a certain temperature range.