Comparation between PIII Superficial and Ceramic Coating in Creep Test of Ti-6Al-4V Alloy

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The objective of this work was evaluating the creep resistance of the Ti-6Al-4V alloy with superficial treatment of PIII superficial treatment 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 treat-ment of PIII and ceramic coating was submitted to creep tests at 600°C and 250 and 319 MPa under constant load mode. In the PIII treatment the samples was put in a vacuum reactor (76x10-3 Pa) and implanted by nitrogen ions in time intervals between 15 and 120 minutes. 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 ceramic coating on Ti-6Al-4V alloy improved its creep resistance.

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Periodical:

Materials Science Forum (Volumes 660-661)

Edited by:

Lucio Salgado and Francisco Ambrozio Filho

Pages:

225-228

DOI:

10.4028/www.scientific.net/MSF.660-661.225

Citation:

D. A.P. Reis et al., "Comparation between PIII Superficial and Ceramic Coating in Creep Test of Ti-6Al-4V Alloy", Materials Science Forum, Vols. 660-661, pp. 225-228, 2010

Online since:

October 2010

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$38.00

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