Enhancement of Surface Property by Low-Energy Laser Peening without Protective Coating-Reference-Cited by-同舟云学术

Enhancement of Surface Property by Low-Energy Laser Peening without Protective Coating

Published:2007-08 Issue: Volume:345-346 Page:1589-1592
ISSN:1662-9795
Container-title:Key Engineering Materials
language:
Short-container-title:KEM

Author:

Sano Yuji¹,Adachi T.²,Akita Koichi³,Altenberger I.⁴,Cherif M.A.⁴,Scholtes Berthold⁴,Masaki Kiyotaka⁵,Ochi Yasuo⁶,Inoue Tatsuo⁷

Affiliation:

1. Toshiba Corporation

2. Fuji Heavy Industries, Ltd.

3. Musashi Institute of Technology

4. University of Kassel

5. The University of Electro-Commuications, UEC Tokyo

6. University of Electro-Communications

7. Fukuyama University

Abstract

Laser peening without protective coating (LPwC) has been applied to metallic materials using low energy pulses of a Q-switched and frequency-doubled Nd:YAG laser. Compressive residual stresses of several hundred megapascals were imparted on the surface of the materials. Redistribution of the residual stress in the top surface due to thermal loading was evaluated non-destructively by synchrotron radiation of SPring-8. Accelerating stress corrosion cracking (SCC) tests showed that LPwC prohibited SCC of sensitized materials. LPwC largely prolonged the fatigue lives of titanium alloys, aluminum alloys and austenitic stainless steels.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Link

https://www.scientific.net/KEM.345-346.1589.pdf

Reference11 articles.

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