Laser Shock Peening of Aluminum Alloy 7050 for Fatigue Life Improvement

The effects of laser shock peening (LSP) on improving fatigue life of aluminum alloy 7050 are investigated.Surface hardness is increased corresponding to a high dislocation density induced by LSP.The X-ray diffraction stress measurement shows that LSP results in prominent increase of surface compressive stress,quasi-symmetrically distributed in the laser peened region.The fatigue life of the alloy 7050 in rivet fastener hole structure is notably improved owing to LSP.The sequence of LSP and fastener hole preparation also influence the fatigue cycle life of the alloy.

作 者： Qian Ming Lian Ying Zou Shikun Gong Shuili   作者單位： Qian Ming,Lian Ying(College of Laser Engineering,Beijing University of Technology)

Zou Shikun,Gong Shuili(Beijing Aeronautical Manufacturing Technology Research Institute) 

刊 名： 航空制造技術(shù)  ISTIC 英文刊名： AERONAUTICAL MANUFACTURING TECHNOLOGY  年，卷(期)： 2007 ""(z1)  分類號： V2  關(guān)鍵詞： Laser shock peening Dislocation Compressive stress Fatigue life Aluminum  

【Laser Shock Peening of Aluminum Allo】相關(guān)文章：

A Reversed Culture Shock05-04

揭幕戰(zhàn)Senegal shock champions05-04

Heat Treatment of Spray Deposition SiCp/6066 Aluminum Matrix Composites04-27

Effects of Ca on the distribution,structure and morphology of aluminum species in polyaluminum chloride04-27

Study on absorbance and laser damage threshold of HfO2 films prepared by ion-assisted reaction deposition04-27

Q-switched mode-locked diode-pumped Nd:YVO4 laser with a saturable Bragg reflector04-27

2011shock觀后感，與座長握手repo~~04-24