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Proceedings Paper

Superficial modification of a Ti-6Al-4V alloy by laser peening
Author(s): H. Carreón; S. Barriuso; M. Carreón; A. Asensio; M. A. Montealegre; J. A. Jiménez; J. L. González-Carrasco
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Paper Abstract

This research work was focused on the laser peening surface process in a metallic Ti-6Al-4V biomaterial. The Ti-6Al- 4V samples were surface treated at different laser conditions varying parameters such as pulse density and wave length. Laser peening induced effects were evaluated by synchrotron radiation X-ray diffraction (SR-XRD) to determine the residual stress state; scanning electron microscopy (SEM) to assess microstructural changes and thermoelectric testing (TEP) to sense the subtle material variations such as local texture, increased dislocation density, hardening and residual stresses degree. The TEP measurements demonstrate that the non-contact technique is very sensitive to the compressive residual stresses with increasing the severity of the laser treatment parameters, while the TEP contact results are closely related to grain size, cracks, anisotropy, and work hardening.

Paper Details

Date Published: 13 November 2017
PDF: 8 pages
Proc. SPIE 10447, Laser-Induced Damage in Optical Materials 2017, 104471T (13 November 2017);
Show Author Affiliations
H. Carreón, Instituto de Investigaciones Metalúrgicas (Mexico)
S. Barriuso, Ctr. Nacional de Investigaciones Metalúrgicas (Spain)
M. Carreón, Instituto de Investigaciones Quimico-Biologicas (Mexico)
A. Asensio, Ctr. Tecnológico AIMEN (Spain)
M. A. Montealegre, Ctr. Tecnológico AIMEN (Spain)
J. A. Jiménez, Ctr. Nacional de Investigaciones Metalúrgicas (Spain)
J. L. González-Carrasco, Ctr. Nacional de Investigaciones Metalúrgicas (Spain)
Ctr. de Bioingeniería, Biomateriales y Nanomedicina (Spain)

Published in SPIE Proceedings Vol. 10447:
Laser-Induced Damage in Optical Materials 2017
Gregory J. Exarhos; Vitaly E. Gruzdev; Joseph A. Menapace; Detlev Ristau; MJ Soileau, Editor(s)

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