• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Engineering and Performance >Effect of Applied Stress and Temperature on Residual Stresses Induced by Peening Surface Treatments in Alloy 600
【24h】

Effect of Applied Stress and Temperature on Residual Stresses Induced by Peening Surface Treatments in Alloy 600

机译：应用应力和温度对由合金600的喷灌表面处理诱导的残余应力的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this study, the effects of applied tensile stress and temperature on laser shock peening (LSP) and cavitation shotless peening (CSP)-induced compressive residual stresses were investigated using neutron and x-ray diffraction. Residual stresses on the surface, measured in situ, were lower than the applied stress in LSP- and CSP-treated Alloy 600 samples (2?mm thick). The residual stress averaged over the volume was similar to the applied stress. Compressive residual stresses on the surface and balancing tensile stresses in the interior relax differently due to hardening induced by LSP. Ex situ residual stress measurements, using XRD, show that residual stresses relaxed as the applied stress exceeded the yield strength of the LSP- and CSP-treated Alloy 600. Compressive residual stresses induced by CSP and LSP decreased by 15-25% in magnitude, respectively, on exposure to 250-450?°C for more than 500?h with 10-11% of relaxation occurring in the first few hours. Further, 80% of the compressive residual stresses induced by LSP and CSP treatments in Alloy 600 were retained even after long-term aging at 350?°C for 2400?h.
机译：在该研究中，采用中子和X射线衍射研究了应用拉伸应力和温度对激光冲击喷丸（LSP）和空化的压缩残余应力的影响。在原位测量的表面上的残余应力低于LSP和CSP处理合金600样品（2Ωmm厚）的施加应力。在体积上平均的残余应力类似于施加的应力。由于LSP诱导的硬化，表面上的表面和平衡张力的压缩残余应力和平衡的拉伸应力不同。使用XRD的Ex原位残留应力测量表明，随着施加的应力超过LSP和CSP处理合金600的屈服强度，弛豫的残余应力。CSP和LSP诱导的压缩残余应力幅度下降15-25％，分别在暴露于250-450°C时超过500μm，在前几个小时内发生10-11％的放松。此外，甚至在350℃下长期老化2400℃后，将LSP和CSP处理中的LSP和CSP处理引起的80％的压缩残余应力保留。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号