Creep Behavior of the Titanium Alloy with Zirconia Plasma Sprayed Coating
The proposal of this research has been the study of the plasma spayed coating on creep of the Ti-6Al-4V, focusing on the determination of the experimental parameters related to the first and second creep stages. Yttria (8 wt %) stabilized zirconia (YSZ) (Metco 204B-NS) with CoNiCrAlY ( AMDRY 995C) has been plasma sprayed coated on Ti-6Al-4V substrate. Creep tests with constant load had been done on Ti-6Al-4V coated samples, the stress level was from 250 to 319 MPa at 600 °C. Highest values of tp and the decrease of the second stage rate had shown a better creep resistance on coated sample. Results indicate that the coated sample was greater than uncoated sample, thus the plasma sprayed coating prevent the sample oxidation efficiently.
Lucio Salgado and Francisco Ambrozio Filho
D. A.P. Reis et al., "Creep Behavior of the Titanium Alloy with Zirconia Plasma Sprayed Coating", Materials Science Forum, Vols. 660-661, pp. 221-224, 2010