Skip to main navigation Skip to search Skip to main content

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

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

7 Scopus citations

Abstract

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.

Original languageEnglish
Title of host publicationAdvances in Materials Manufacturing Science and Technology XIV
EditorsTian Huang, Dawei Zhang, Bin Lin, Yanling Tian, Weiguo Gao, Anping Xu
PublisherTrans Tech Publications Ltd
Pages235-238
Number of pages4
ISBN (Print)9783037852378
DOIs
StatePublished - 2012
Externally publishedYes
Event14th International Manufacturing Conference in China, IMCC2011 - Tianjin, China
Duration: 13 Oct 2011 → 15 Oct 2011

Publication series

NameMaterials Science Forum
Volume697-698
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference14th International Manufacturing Conference in China, IMCC2011
Country/TerritoryChina
CityTianjin
Period13/10/11 → 15/10/11

Keywords

  • High cycle fatigue life
  • Lsaer shock processing
  • Ni-base superalloy

Fingerprint

Dive into the research topics of 'Laser shock processing of Ni-base superalloy and high cycle fatigue properties'. Together they form a unique fingerprint.

Cite this