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首页> 外文会议>国际断裂力学2009年会 >Improving the creep-fatigue properties for 316L stainless steel by dynamic strain aging pretreatment technique
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Improving the creep-fatigue properties for 316L stainless steel by dynamic strain aging pretreatment technique

机译：通过动态应变时效预处理技术改善316L不锈钢的蠕变疲劳性能

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摘要

Monotonic tensile tests were conducted for 316L stainless steel under different temperatures.The dynamic strain aging (DSA) regime for this material is determined at temperatures of 400-600℃.Stress controlled creep-fatigue tests were also carried out for hot rolled and dynamic strain aging (DSA) pre-treated 316L stainless steel under different loading levels at 550℃.Comparing with hot rolled material,by DSA pre-treatment,the creep-fatigue cyclic strain amplitude is decreased and the material creep-fatigue life is effectively prolonged.Moreover,it is found that,the material creep-fatigue life monotonically increases with pre-deformation strain,no matter the maximum pre-defonnation stress is larger than the maximum creep-fatigue applied stress or not.
机译：在不同温度下对316L不锈钢进行了单调拉伸试验。确定了该材料在400-600℃的温度下的动态应变时效（DSA）方案；还对热轧和动态应变进行了应力控制的蠕变疲劳试验。时效（DSA）预处理316L不锈钢在550℃的不同载荷水平下。与热轧材料相比，通过DSA预处理，可降低蠕变疲劳循环应变幅度，有效地延长材料的蠕变疲劳寿命。此外，发现材料的蠕变疲劳寿命随预变形应变而单调增加，无论最大预定义应力是否大于最大蠕变疲劳施加应力。

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  • 来源
    《国际断裂力学2009年会》|2009年|245-249|共5页
  • 会议地点 Chengdu(CN);Chengdu(CN)
  • 作者

    Huifeng Jiang; Xuedong Chen; Zhichao Fan; Jie Dong; Heng Jiang;

  • 作者单位

    National Technology Research Center on Pressure Vessel and Pipeline Safety Engineering,Hefei General Machinery Research Institute,Hefei 230031,China;

    National Technology Research Center on Pressure Vessel and Pipeline Safety Engineering,Hefei General Machinery Research Institute,Hefei 230031,China;

    National Technology Research Center on Pressure Vessel and Pipeline Safety Engineering,Hefei General Machinery Research Institute,Hefei 230031,China;

    National Technology Research Center on Pressure Vessel and Pipeline Safety Engineering,Hefei General Machinery Research Institute,Hefei 230031,China;

    National Technology Research Center on Pressure Vessel and Pipeline Safety Engineering,Hefei General Machinery Research Institute,Hefei 230031,China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Creep-fatigue; Dynamic strain aging pretreatment; Stress control; High temperature;

    机译：蠕变疲劳；动态应变时效预处理；应力控制；高温;

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