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首页> 外文期刊>Acta metallurgica Sinica >INVESTIGATION OF THE LOW-CYCLE FATIGUE AND FATIGUE CRACK GROWTH BEHAVIORS OF P91 BASE METAL AND WELD JOINTS
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INVESTIGATION OF THE LOW-CYCLE FATIGUE AND FATIGUE CRACK GROWTH BEHAVIORS OF P91 BASE METAL AND WELD JOINTS

机译:P91母材和焊接接头的低周疲劳和疲劳裂纹扩展行为的研究

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摘要

Low cycle fatigue tests and crack growth propagations tests on P91 pipe base metal and its weld joints were conducted at three different temperatures: room temperature, 550 deg C and 575 deg C. The strain-life was analyzed, and the changes in fatigue life behavior and fatigue growth rates with increasing temperature were discussed. The different properties of the base metal and its weld joint have been analyzed.
机译:在室温,550℃和575℃这三种不同温度下,对P91管母材及其焊接接头进行了低周疲劳测试和裂纹扩展扩展测试。分析了应变寿命,并分析了疲劳寿命行为的变化。并讨论了温度升高时的疲劳增长率。分析了母材及其焊接接头的不同性能。

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