Fatigue life enhancement of high reliability metallic components by laser shock processing

Ocaña Moreno, José Luis and Porro González, Juan Antonio and Díaz, M. and Ruiz de Lara de Luis, Leonardo and Correa, C. and Peral, D. (2015). Fatigue life enhancement of high reliability metallic components by laser shock processing. In: "High-Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications IV Conference", 7-12 February 2015, San Francisco, California, United States. ISBN 9781628414462 ISSN: 0277-786X. pp. 1-6. https://doi.org/10.1117/12.2076125.

Description

Title: Fatigue life enhancement of high reliability metallic components by laser shock processing
Author/s:
  • Ocaña Moreno, José Luis
  • Porro González, Juan Antonio
  • Díaz, M.
  • Ruiz de Lara de Luis, Leonardo
  • Correa, C.
  • Peral, D.
Item Type: Presentation at Congress or Conference (Article)
Event Title: High-Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications IV Conference
Event Dates: 7-12 February 2015
Event Location: San Francisco, California, United States
Title of Book: High-Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications IV
Date: 2015
ISBN: 9781628414462 ISSN: 0277-786X
Volume: 9356
Subjects:
Freetext Keywords: Lasers ; Reliability ; Corrosion ; Metals
Faculty: E.T.S.I. Industriales (UPM)
Department: Física Aplicada e Ingeniería de Materiales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Laser shock processing (LSP) is increasingly applied as an effective technology for the improvement of metallic materials mechanical properties in different types of components as a means of enhancement of their mechanical behavior. As reported in the literature, 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 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, experimental results on the residual stress profiles and associated mechanical properties modification successfully reached in typical materials 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. In this case, the specific behavior of a widely used material in high reliability components (especially in nuclear and biomedical applications) as AISI 316L is analyzed, the effect of possible “in-service” thermal conditions on the relaxation of the LSP effects being specifically characterized.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainMICINN/MINECO MAT2008-02704/MATUnspecifiedUnspecifiedUnspecified
Government of SpainMICINN/MINECO MAT2012-37782UnspecifiedUnspecifiedUnspecified

More information

Item ID: 42429
DC Identifier: http://oa.upm.es/42429/
OAI Identifier: oai:oa.upm.es:42429
DOI: 10.1117/12.2076125
Deposited by: Memoria Investigacion
Deposited on: 03 Aug 2016 10:14
Last Modified: 03 Mar 2017 19:22
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