• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Corrosion Engineering, Science and Technology >Using acoustic emission and fractography to evaluate defects induced by corrosive environment
【24h】

Using acoustic emission and fractography to evaluate defects induced by corrosive environment

机译：使用声发射和断层照相法评估由腐蚀环境引起的缺陷

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

Acoustic emission (AE) is now a well established technique for damage detection, quantification and location in large structures. It appears in its principle as a technique providing real time information about the origins and the importance of the degradation mechanisms inside the material. This paper demonstrates the use of AE technique to monitor the structural damage using data obtained from a phenomenological study of hydrogen induced cracking of a low alloy steel pressure vessel. In addition to the feature extraction, correlation and clustering procedures applied to the AE signals, data were studied in time and frequency domain to characterise and to find out the relation between AE parameter and damage sources. Moreover, the characterisation of the corrosive mechanisms using the optical microscopy as well as the scanning electron microscopy was carried out. These identified corrosive mechanisms and the sources of generated AE signals were discussed.
机译：声发射（AE）现在是用于大型结构中的损伤检测，量化和定位的成熟技术。它的原理似乎是一种提供有关材料内部降解机理的起源和重要性的实时信息的技术。本文利用从低合金钢压力容器的氢致裂纹现象学研究获得的数据，证明了声发射技术用于监测结构损伤的方法。除了对声发射信号进行特征提取，相关性和聚类程序外，还对时域和频域数据进行了研究，以表征和发现声发射参数与损伤源之间的关系。此外，使用光学显微镜和扫描电子显微镜对腐蚀机理进行了表征。讨论了这些确定的腐蚀机理和产生的AE信号的来源。

著录项

  • 来源
    《Corrosion Engineering, Science and Technology》 |2009年第4期|251-260|共10页
  • 作者

    Hrairi M.;

  • 作者单位

    Department of Mechanical Engineering, International Islamic University Malaysia, PO box 10, 50728 Kuala Lumpur, Malaysia, Email: meftah@iiu.edu.my;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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