Paper Title:

Comparation between Pulsed Nd:YAG Laser Superficial Treatment and Ceramic Coating in Creep Test of Ti-6-4V Alloy

Periodical Materials Science Forum (Volumes 660 - 661)
Main Theme Advanced Powder Technology VII
Edited by Lucio Salgado and Francisco Ambrozio Filho
Pages 229-234
DOI 10.4028/www.scientific.net/MSF.660-661.229
Citation Adriano G. Reis et al., 2010, Materials Science Forum, 660-661, 229
Online since October, 2010
Authors Adriano G. Reis, Danieli A.P. Reis, Carlos de Moura Neto, Javier Onõro, H.S. Oliveira, Antonio Augusto Couto
Keywords Creep, Plasma Sprayed Coatings, Pulse Laser, Titanium Alloy
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Abstract

The objective of this work was evaluating the creep resistance of the Ti-6Al-4V alloy with superficial treatment of pulsed Nd:YAG laser and ceramic coating in creep test of Ti-6Al-4V alloy. It was used Ti-6Al-4V alloy as cylindrical bars under forged and annealing of 190oC by 6 hours condition and cooled by air. The Ti-6Al-4V alloy after the superficial treatment of pulsed Nd:YAG laser and ceramic coating was submitted to creep tests at 600°C and 125 at 319 MPa, under constant load mode. In the Nd:YAG pulsed laser treatment was used an environment of 40 % N and 60 % Ar, with 2.1 W of power and 10 m/s of speed. Yttria (8 wt.%) stabilized zirconia (YSZ) with a CoNiCrAlY bond coat was atmospherically plasma sprayed on Ti-6Al-4V substrates by Sulzer Metco Type 9 MB. The obtained results suggest the laser treatment on Ti-6Al-4V alloy improved its creep resistance.