Skip to main content
SpringerLink
Log in

Mechanism of improvement on fatigue life of metal by laser-excited shock waves

  • Published:
Applied Physics A Aims and scope Submit manuscript

Abstract.

The high-amplitude shock waves induced by the interaction of pulsed high-power laser with aluminum alloy 2024-T62 make the 0.2% offset yield strength, the ultimate tensile strength, surface hardness, elastic modulus, and Possion ratio of specimens increase by 13.3%, 13.4%, 117.5%, 24%, and 12%, respectively. In addition, the high surface residual compressive stresses, dense dislocations, and finer grains are formed in the sub-surface of shocked area. The relations between these factors and the fatigue life of the specimens are investigated.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Author information

Authors and Affiliations

  1. College of Mechanical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212013, P.R. China (Fax: +86-511/879-1739, E-mail: zhyk@center.jsust.edu.cn), , , , , , CN

    Y.K. Zhang, C.L. Hu, L. Cai & J.C. Yang

  2. Institute of Acoustics and Laboratory of Modern Acoustics, Nanjing University, Nanjing 210008 , , , , , , CN

    X.R. Zhang

Authors
  1. Y.K. Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. C.L. Hu
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. L. Cai
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. J.C. Yang
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. X.R. Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Received: 2 February 2000 / Accepted: 28 March 2000 / Published online: 23 August 2000

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zhang, Y., Hu, C., Cai, L. et al. Mechanism of improvement on fatigue life of metal by laser-excited shock waves . Appl Phys A 72, 113–116 (2001). https://doi.org/10.1007/s003390000533

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/s003390000533

Search

Navigation