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材料工程  2006 

X70管线钢的室温蠕变及其对流变应力的影响

, PP. 58-61

Keywords: 室温蠕变,流变应力,应力加载速率,加载过程

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Abstract:

利用MTS万能试验机研究了X70管线钢在不同应力加载速率和不同加载过程下的室温蠕变现象,以及室温蠕变对流变应力的影响。结果表明,X70管线钢有明显的室温蠕变现象存在,应力加载速率和加载过程对室温蠕变变形量有明显的影响,而且室温蠕变显著提高了材料的流变应力。并根据位错理论对实验结果进行了分析解释。

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