Mechanical properties enhancement of high reliability metallic materials by laser shock processing

Ocaña Moreno, José Luis and Morales Furió, Miguel and Porro González, Juan Antonio and Iordachescu, Danut and Diaz Muñoz, Marcos and Ruiz de Lara de Luis, Leonardo and Correa Guinea, Carlos (2012). Mechanical properties enhancement of high reliability metallic materials by laser shock processing. "Materials Science Forum", v. 706-70 ; pp. 2565-2570. ISSN 0255-5476. https://doi.org/10.4028/www.scientific.net/MSF.706-709.2565.

Description

Title: Mechanical properties enhancement of high reliability metallic materials by laser shock processing
Author/s:
  • Ocaña Moreno, José Luis
  • Morales Furió, Miguel
  • Porro González, Juan Antonio
  • Iordachescu, Danut
  • Diaz Muñoz, Marcos
  • Ruiz de Lara de Luis, Leonardo
  • Correa Guinea, Carlos
Item Type: Article
Título de Revista/Publicación: Materials Science Forum
Date: 2012
ISSN: 0255-5476
Volume: 706-70
Subjects:
Freetext Keywords: Laser shock processing, residual stresses, surface properties, roughness, hardness, wear, mechanical resistance, fatigue life
Faculty: E.T.S.I. Industriales (UPM)
Department: Física Aplicada a la Ingeniería Industrial [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Laser shock processing (LSP) is being increasingly applied as an effective technology for the improvement of metallic materials surface properties in different types of components as a means of enhancement of their corrosion and fatigue life behavior. As reported in previous contributions by the authors, a main effect resulting from the application of the LSP technique consists on the generation of relatively deep compression residual stresses field into metallic alloy pieces allowing an improved mechanical behaviour, explicitly the life improvement of the treated specimens against wear, crack growth and stress corrosion cracking. Additional results accomplished by the authors in the line of practical development of the LSP technique at an experimental level (aiming its integral assessment from an interrelated theoretical and experimental point of view) are presented in this paper. Concretely, follow-on experimental results on the residual stress profiles and associated surface properties modification successfully reached in typical materials (especially Al and Ti alloys) under different LSP irradiation conditions are presented along with a practical correlated analysis on the protective character of the residual stress profiles obtained under different irradiation strategies and the evaluation of the corresponding induced properties as material specific volume reduction at the surface, microhardness and wear resistance. Additional remarks on the improved character of the LSP technique over the traditional “shot peening” technique in what concerns depth of induced compressive residual stresses fields are also made through the paper.

More information

Item ID: 16851
DC Identifier: http://oa.upm.es/16851/
OAI Identifier: oai:oa.upm.es:16851
DOI: 10.4028/www.scientific.net/MSF.706-709.2565
Official URL: http://www.scientific.net/MSF.706-709.2565
Deposited by: Memoria Investigacion
Deposited on: 22 Jan 2014 19:35
Last Modified: 03 Mar 2017 16:56
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