Analysis of plasma thermal surface effects on the residual stress field induced by LSP in Al2024-t351

Morales Furió, Miguel; Porro González, Juan Antonio; Molpeceres Álvarez, Carlos Luis; Holgado Bolaños, Miguel y Ocaña Moreno, José Luis (2010). Analysis of plasma thermal surface effects on the residual stress field induced by LSP in Al2024-t351. "Journal of Optoelectronics and Advanced Materials", v. 12 (n. 3); pp. 718-722. ISSN 1454-4164.

Descripción

Título: Analysis of plasma thermal surface effects on the residual stress field induced by LSP in Al2024-t351
Autor/es:
  • Morales Furió, Miguel
  • Porro González, Juan Antonio
  • Molpeceres Álvarez, Carlos Luis
  • Holgado Bolaños, Miguel
  • Ocaña Moreno, José Luis
Tipo de Documento: Artículo
Título de Revista/Publicación: Journal of Optoelectronics and Advanced Materials
Fecha: Marzo 2010
Volumen: 12
Materias:
Palabras Clave Informales: Plasma, Laser shock processing, Surface treatment, Shock waves, Residual stress, Numerical modeling
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Física Aplicada a la Ingeniería Industrial [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

In Laser Shock Processing (LSP) a high intensity pulsed laser beam is focused at the interface between a metallic target and a transparent confining material (normally water) that induces a residual stress distribution in the target material. Without a protective coating thermal effects are present near the target surface. A calculational model has been developed, able to systematically study LSP processes, starting from laser-plasma interaction and coupled thermo-mechanical target behavior. We present results obtained in LSP treatments without coating. In particular the relative influence of thermal/mechanical effects shows that: each effect has a different temporal scale and thermal effects are limited to a small region near the surface; repeated pulses increase maximum compressive residual stress and the depth of the compressive residual stress region; compressive residual stresses very close to the surface level can be induced even without any protective coating through the application of adjacent pulses.

Más información

ID de Registro: 7048
Identificador DC: http://oa.upm.es/7048/
Identificador OAI: oai:oa.upm.es:7048
URL Oficial: http://www.inoe.ro/Journal.html
Depositado por: Memoria Investigacion
Depositado el: 26 May 2011 10:19
Ultima Modificación: 21 Ago 2017 11:42
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