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Proceedings Paper

New trends in laser shock wave physics and applications
Author(s): Patrice Peyre; Christelle Carboni; Arnault Sollier; Laurent Berthe; Caroline Richard; E. de Los Rios; Remy Fabbro
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Paper 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.

Paper Details

Date Published: 13 September 2002
PDF: 13 pages
Proc. SPIE 4760, High-Power Laser Ablation IV, (13 September 2002); doi: 10.1117/12.482138
Show Author Affiliations
Patrice Peyre, Cooperation Laser Franco Allemande (France)
Christelle Carboni, Cooperation Laser Franco Allemande (France)
Arnault Sollier, Cooperation Laser Franco Allemande (France)
Laurent Berthe, Cooperation Laser Franco Allemande (France)
Caroline Richard, Univ. de Technologie de Compiegne (France)
E. de Los Rios, Univ. of Sheffield (United Kingdom)
Remy Fabbro, Cooperation Laser Franco Allemande (France)

Published in SPIE Proceedings Vol. 4760:
High-Power Laser Ablation IV
Claude R. Phipps, Editor(s)

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