Laser Shock Processing influence on local properties and overall tensile behavior of friction stir welded joints

Iordachescu, Mihaela and Valiente Cancho, Andrés and Caballero, Luis and Iordachescu, Danut and Ocaña Moreno, José Luis and Porro González, Juan Antonio (2012). Laser Shock Processing influence on local properties and overall tensile behavior of friction stir welded joints. "Surface and Coatings Technology", v. 206 (n. 8-9); pp. 2422-2429. ISSN 0257-8972. https://doi.org/10.1016/j.surfcoat.2011.10.044.

Description

Title: Laser Shock Processing influence on local properties and overall tensile behavior of friction stir welded joints
Author/s:
  • Iordachescu, Mihaela
  • Valiente Cancho, Andrés
  • Caballero, Luis
  • Iordachescu, Danut
  • Ocaña Moreno, José Luis
  • Porro González, Juan Antonio
Item Type: Article
Título de Revista/Publicación: Surface and Coatings Technology
Date: 15 January 2012
ISSN: 0257-8972
Volume: 206
Subjects:
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ciencia de los Materiales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (2MB)

Abstract

Based on laser beam intensities above 109 W/cm2 with pulse energy of several Joules and duration of nanoseconds, Laser Shock Processing (LSP) is capable of inducing a surface compressive residual stress field. The paper presents experimental results showing the ability of LSP to improve the mechanical strength and cracking resistance of AA2024-T351 friction stir welded (FSW) joints. After introducing the FSW and LSP procedures, the results of microstructural analysis and micro-hardness are discussed. Video Image Correlation was used to measure the displacement and strain fields produced during tensile testing of flat specimens; the local and overall tensile behavior of native FSW joints vs. LSP treated were analyzed. Further, results of slow strain rate tensile testing of the FSW joints, native and LSP treated, performed in 3.5% NaCl solution are presented. The ability of LSP to improve the structural behavior of the FSW joints is underscored.

More information

Item ID: 20790
DC Identifier: http://oa.upm.es/20790/
OAI Identifier: oai:oa.upm.es:20790
DOI: 10.1016/j.surfcoat.2011.10.044
Official URL: http://www.sciencedirect.com/science/article/pii/S0257897211011108
Deposited by: Memoria Investigacion
Deposited on: 29 Oct 2013 09:48
Last Modified: 03 Mar 2017 16:47
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM