New trends in laser shock wave physics and applications

Patrice Peyre; Christelle Carboni; Arnault Sollier; Laurent Berthe; Caroline Richard; E. de Los Rios; Remy Fabbro

doi:10.1117/12.482138

13 September 2002 New trends in laser shock wave physics and applications

Patrice Peyre, Christelle Carboni, Arnault Sollier, Laurent Berthe, Caroline Richard, E. de Los Rios, Remy Fabbro

Proceedings Volume 4760, High-Power Laser Ablation IV; (2002) https://doi.org/10.1117/12.482138
Event: International Symposium on High-Power Laser Ablation 2002, 2002, Taos, New Mexico, United States

Abstract

Recent applications for laser-induced shock waves have been demonstrated in the aeronautical and nuclear industries, due to the development of new generations of lasers that enable high cadency rates with rather small designs. In this paper, we first aim at making an overview on basic physical processes involved in Laser Shock Processing, and a presentation of pressure loadings generated by different laser conditions. In a second part, a specific focus is given to new ranges of applications like wear resistance, uniform and localized corrosion or modeling of fatigue behaviour after LSP. For instance it is demonstrated that the pitting corrosion behaviour of 316L steel in saline medium can be improved by laser-induced pure mechanical effects surrounding inclusions. It is also shown that wear rates of a 100Cr6 tool steel can be reduced after LSP provided applied pressures are kept below a material deposit threshold. Last but not least, the fatigue cracking behaviour of 2024-T351 aluminum alloy after LSP was improved and calculated through a computed program taking into account work hardening together with residual stress effects.

Citation Download Citation

Patrice Peyre, Christelle Carboni, Arnault Sollier, Laurent Berthe, Caroline Richard, E. de Los Rios, and Remy Fabbro "New trends in laser shock wave physics and applications", Proc. SPIE 4760, High-Power Laser Ablation IV, (13 September 2002); https://doi.org/10.1117/12.482138

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