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Title: Optimization of the Residual Stresses Induced by Laser Shock Treatment and Fatigue Life Improvement of 2 Cast Alum Alloys
Author: Peyre, Merrien, Lieurade, Fabbro, Bignonnet
Source: Conf Proc: ICSP-5, (p.301-310)
Publication year 1993
Document number: 1993082
Number of pages: 9
Abstract:
Surface treatments are becoming more and more important in the mechanical industry and their number is yearly expanding. Indeed, besides the commonly used treatments such
as shot peening or nitridation, some new techniques are being developed like primary explosive [1] or laser shock waves [3,4] particularly to improve fatigue properties of
mechanical parts. In previous studies [2] the effects of laser shock treatment on the residual stress field and fatigue behaviour of steels were investigated. The aim of
the paper is to present the results of investigations on the effects of laser shock treatment on two cast aluminum alloys used in the automotive industry. In fact, we just
tried to demonstrate the feasibility of laser shock waves to stengthen zones in cast aluminium alloys and to give optimized conditions for the treatment.
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