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首页> 外文期刊>Materials Science and Engineering >Effect of carburizing treatment on the 'fish eye' crack growth for a low alloyed chromium steel in very high cycle fatigue
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Effect of carburizing treatment on the 'fish eye' crack growth for a low alloyed chromium steel in very high cycle fatigue

机译：渗碳处理对极高循环疲劳下低合金铬钢“鱼眼”裂纹扩展的影响

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摘要

A low alloyed chromium steel with a carburizing treatment is studied in VHCF regime with the help of an ultrasonic fatigue machine working at 20 kHz frequency. An infrared camera is applied to study the thermal dissipation during the crack growth period. The number of cycles at the second crack growth stage could be determined by the temperature evolution. The crack propagation model is coupled with thermal dissipation, which permits to estimate the temperature evolution in crack propagation period on specimen surface with the help of the numerical method FEM. The comparison between the results of test and simulation shows that the model is in agreement with the test in the second period of crack propagation.
机译：借助于在20 kHz频率下工作的超声疲劳机，以VHCF方式研究了经过渗碳处理的低合金铬钢。应用红外热像仪研究裂纹扩展过程中的热耗散。第二裂纹扩展阶段的循环次数可以通过温度变化来确定。裂纹扩展模型与热耗散相结合，可以借助数值方法FEM估算试样表面裂纹扩展期间的温度变化。测试结果与模拟结果的比较表明，该模型与裂纹扩展第二阶段的测试结果吻合。

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  • 来源
    《Materials Science and Engineering》 |2013年第1期|790-797|共8页
  • 作者

    Zhi Yong Huang; Daniele Wagner; Qing Yuan Wang; Claude Bathias;

  • 作者单位

    Sichuan University, No. 29 Jiuyanqiao Wangjiang Road, Chengdu, 610064, China,Universite Paris Quest Nanterre La Defense, 50 Rue de Sevres 92410 Ville d'Avray, France;

    Universite Paris Quest Nanterre La Defense, 50 Rue de Sevres 92410 Ville d'Avray, France;

    Sichuan University, No. 29 Jiuyanqiao Wangjiang Road, Chengdu, 610064, China;

    Universite Paris Quest Nanterre La Defense, 50 Rue de Sevres 92410 Ville d'Avray, France;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    VHCF; SEM; crack path; fatigue dissipation;

    机译：VHCF;扫描电镜裂纹路径疲劳耗散;

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