Application of high-energy laser in strain-hardening of material

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Laser is a coherent, convergent and monochromatic beam of electromagnetic radiation and has wide applications in all walks of life. Surface engineering is one of the applications and contains surface alloying/cladding, surface melting/remelting, surface amorphization and surface hardening/shocking. Laser surface hardening/shocking has been proposed as an effective technology for improving surface mechanical and corrosion properties of metals by inducing a compressive residual stress field. The laser shock processing system with high-energy laser is the key technology for industrial application of surface shocking. The laser shock processing system was described in this paper and the power supply system and the samples gripping and handling system were also introduced. Experiment was conducted by the shock processing system and results shows that high-energy laser has led to compressive residual stress in near-surface regions of 1Cr11Ni2W2MoV stainless steel and improved 1Cr11Ni2W2MoV fatigue life greatly.

Original languageEnglish
Title of host publicationMechatronics and Industrial Informatics
Pages141-145
Number of pages5
DOIs
StatePublished - 2013
Externally publishedYes
Event2013 International Conference on Mechatronics and Industrial Informatics, ICMII 2013 - Guangzhou, China
Duration: 13 Mar 201314 Mar 2013

Publication series

NameApplied Mechanics and Materials
Volume321-324
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2013 International Conference on Mechatronics and Industrial Informatics, ICMII 2013
Country/TerritoryChina
CityGuangzhou
Period13/03/1314/03/13

Keywords

  • Coordinate robot system
  • Laser
  • Pulse laser power
  • Strain hardening

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