...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Fatigue >Very long life fatigue failure mechanism of electron beam welded joint for titanium alloy at elevated temperature
【24h】

Very long life fatigue failure mechanism of electron beam welded joint for titanium alloy at elevated temperature

机译：高温下钛合金电子束焊接接头的长寿疲劳机理

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

The very long life fatigue failure mechanism of welded joints for titanium alloy at 400°C has been investigated. The results show that the welded joint has a nonhomogeneous microstructure. The welded defects are mainly welded pores, and maximum pore sizes are evaluated by statistical methods. The increase in temperature reduces the fatigue strength and changes the shape of S-N curves for the welded joints. Crack initiation is attributed to the existence of welded pores. Crystallographic facets are found around welded pores on the crack initiation zone, and their formation is sensitive to columnar grains and is driven by shear stress at 400°C.
机译：研究了400℃下钛合金焊接接头的长寿命疲劳失效机理。 结果表明，焊接接头具有非均匀的微观结构。 焊接缺陷主要是焊接孔隙，并且通过统计方法评估最大孔径。 温度的增加降低了疲劳强度，并改变焊接接头的S-N曲线的形状。 裂纹启动归因于焊接孔隙的存在。 在裂纹引发区上的焊接孔周围发现晶体刻面，它们的形成对柱状晶粒敏感，并且在400℃下通过剪切应力驱动。

著录项

  • 来源
    《International Journal of Fatigue》 |2021年第11期|106446.1-106446.13|共13页
  • 作者

    Fulin Liu; Yao Chen; Chao He; Chong Wang; Lang Li; Yongjie Liu; Qingyuan Wang;

  • 作者单位

    MOE Key Laboratory of Deep Earth Science and Engineering College of Architecture and Environment Sichuan University Chengdu 610065 China Failure Mechanics and Engineering Disaster Prevention and Mitigation Key Laboratory of Sichuan Province Sichuan University Chengdu 610207 China;

    MOE Key Laboratory of Deep Earth Science and Engineering College of Architecture and Environment Sichuan University Chengdu 610065 China Failure Mechanics and Engineering Disaster Prevention and Mitigation Key Laboratory of Sichuan Province Sichuan University Chengdu 610207 China;

    MOE Key Laboratory of Deep Earth Science and Engineering College of Architecture and Environment Sichuan University Chengdu 610065 China Failure Mechanics and Engineering Disaster Prevention and Mitigation Key Laboratory of Sichuan Province Sichuan University Chengdu 610207 China;

    MOE Key Laboratory of Deep Earth Science and Engineering College of Architecture and Environment Sichuan University Chengdu 610065 China Failure Mechanics and Engineering Disaster Prevention and Mitigation Key Laboratory of Sichuan Province Sichuan University Chengdu 610207 China;

    MOE Key Laboratory of Deep Earth Science and Engineering College of Architecture and Environment Sichuan University Chengdu 610065 China Failure Mechanics and Engineering Disaster Prevention and Mitigation Key Laboratory of Sichuan Province Sichuan University Chengdu 610207 China;

    MOE Key Laboratory of Deep Earth Science and Engineering College of Architecture and Environment Sichuan University Chengdu 610065 China Failure Mechanics and Engineering Disaster Prevention and Mitigation Key Laboratory of Sichuan Province Sichuan University Chengdu 610207 China;

    MOE Key Laboratory of Deep Earth Science and Engineering College of Architecture and Environment Sichuan University Chengdu 610065 China Failure Mechanics and Engineering Disaster Prevention and Mitigation Key Laboratory of Sichuan Province Sichuan University Chengdu 610207 China School of Architecture and Civil Engineering Chengdu University Chengdu 610106 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Welded joints; Very long life fatigue; Elevated temperature; Welded pores; Crystallographic facets;

    机译：焊接关节;生活疲劳很长;温度升高;焊接毛孔;晶体面;

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