Laser shock processing: an emerging technique for the mechanical and surface properties enhancement of metallic materials

Ocaña Moreno, José Luis and Porro González, Juan Antonio and Díaz Muñoz, Marcos and Ruiz de Lara de Luis, Leonardo and Peral Jiménez, David and Santiago Varela, José Antonio and Angulo Ramonell, Ignacio (2016). Laser shock processing: an emerging technique for the mechanical and surface properties enhancement of metallic materials. In: "The 30th International Conference on Surface Modification Technologies", 29th Jne - 1st July, 2016, Milán (Italy). pp. 1-6.

Description

Title: Laser shock processing: an emerging technique for the mechanical and surface properties enhancement of metallic materials
Author/s:
  • Ocaña Moreno, José Luis
  • Porro González, Juan Antonio
  • Díaz Muñoz, Marcos
  • Ruiz de Lara de Luis, Leonardo
  • Peral Jiménez, David
  • Santiago Varela, José Antonio
  • Angulo Ramonell, Ignacio
Item Type: Presentation at Congress or Conference (Article)
Event Title: The 30th International Conference on Surface Modification Technologies
Event Dates: 29th Jne - 1st July, 2016
Event Location: Milán (Italy)
Title of Book: The 30th International Conference on Surface Modification Technologies
Date: 2016
Subjects:
Freetext Keywords: laser shock processing; residual stresses; mechanical behaviour; surface properties; fatigue life.
Faculty: E.T.S.I. Industriales (UPM)
Department: Física Aplicada e Ingeniería de Materiales
UPM's Research Group: UPM Laser Centre
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Laser Shock Processing (LSP) is as an effective technology for the improvement of surface and mechanical properties of metallic alloys and is an emerging technology in its way to production engineering in direct competence with other well established technologies as, i.e. shot peening. The technique is based on the application of a high intensity pulsed laser beam on a metallic target forcing a sudden vaporization of its surface into a high temperature and density plasma that immediately develops inducing a shock wave propagating into the material. The main advantage of this technique consists on its capability of inducing a relatively deep compression residual stresses field into metallic alloy pieces allowing an improved mechanical behaviour, explicitly, the life improvement under cyclic load connected with improved wear and corrosion resistance. The laser shock effects achieved by this method are comparable to those of shot-peening: that is, a local material compression linked to the generation and displacement of defects, surface state modification and, most important, a compressing residual stress field whose magnitude and depth into the material is generally associated with large improvements in fatigue resistance. Along with a description of the theoretical/computational and experimental methods developed by the authors for the predictive assessment and experimental implementation of LSP treatments, experimental results on the residual stress profiles and associated surface properties modification successfully reached under different LSP irradiation conditions in typical high strength materials will be presented in this paper.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainMAT2008- 02704UnspecifiedUnspecifiedUnspecified
Government of SpainMAT2012- 37782UnspecifiedUnspecifiedUnspecified

More information

Item ID: 46159
DC Identifier: http://oa.upm.es/46159/
OAI Identifier: oai:oa.upm.es:46159
Official URL: http://www.smt30.org/#home
Deposited by: Memoria Investigacion
Deposited on: 29 May 2017 18:35
Last Modified: 01 Jul 2017 22:30
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