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Laser shock processing of Ni-base superalloy and high cycle fatigue properties

  • L. Zhou
  • , Y. H. Li
  • , W. F. He
  • , X. D. Wang
  • , Q. P. Li
  • Air Force Engineering University Xian

科研成果: 书/报告/会议事项章节 › 会议稿件 › 同行评审

7 引用 (Scopus)

摘要

A plasma sound wave detection method of laser shock processing (LSP) technology is proposed. Speciments of Ni-base superalloy are used in this paper. A convergent lens is used to deliver 1.2 J, 10 ns laser pulses by a Q-switch Nd:YAG laser, operating at 1 Hz. The influence of the laser density to the shock wave is investigated in detail for two different wavelength lasers. Constant amplitude fatigue data are generated in room environment using notch specimens tested at an amplitude of vibration 2.8 mm and first-order flextensional mode. The results show that LSP is an effective surface treatment technique for improving the high cycle fatigue performance of Ni-base superalloys having a factor of 1.62 improvement in fatigue life.

源语言英语
主期刊名Advances in Materials Manufacturing Science and Technology XIV
编辑Tian Huang, Dawei Zhang, Bin Lin, Yanling Tian, Weiguo Gao, Anping Xu
出版商Trans Tech Publications Ltd
页235-238
页数4
ISBN(印刷版)9783037852378
DOI
出版状态已出版 - 2012
已对外发布是
活动14th International Manufacturing Conference in China, IMCC2011 - Tianjin, 中国
期限: 13 10月 2011 → 15 10月 2011

出版系列

姓名Materials Science Forum
卷697-698
ISSN(印刷版)0255-5476
ISSN(电子版)1662-9752

会议

会议14th International Manufacturing Conference in China, IMCC2011
国家/地区中国
市Tianjin
时期13/10/11 → 15/10/11

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