Assessment of the Fatigue Behavior of Ti-6Al-4V ELI Alloy with Surface Treated by Nd:YAG Laser Irradiation

The effect of a surface treatment by Nd:YAG laser irradiation on the fatigue behavior of Ti-6Al-4V ELI was studied. Axial fatigue tests were performed to obtain S-N curves in polished and laser treated conditions. Roughness measurements and scanning electron microscopy were used to characterize the features of the modified surface. A reduction in the fatigue strength of around 35% was obtained after the laser treatment of the material surface. Although the surface roughness was in the micrometer scale, a notch effect was suggested to be the reason for the deleterious influence of the laser on the fatigue strength. The reduction in the fatigue strength obligatory demands redesign of implants for laser modified surfaces of Ti-6Al-4V alloy.

Bibliographic Details

Main Authors:	Potomati,Fernanda, Campanelli,Leonardo Contri, Silva,Paulo Sergio Carvalho Pereira da, Simões,José Guilherme Alvarenga Batista, Lima,Milton Sergio Fernandes de, Damião,Álvaro José, Bolfarini,Claudemiro
Format:	Digital revista
Language:	English
Published:	ABM, ABC, ABPol 2019
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000400230
Tags:	Add Tag No Tags, Be the first to tag this record!