Comparison of Thermal Cyclic Oxidation of the PVD Ni-Al and HVOF-MCrAlY Coatings

Authors

J-t CHANG, Plasma Engineering Lab,Department of Materials Science, Feng Chia University, Taiwan, China
C-h Yeh, Plasma Engineering Lab,Department of Materials Science, Feng Chia University, Taiwan, ChinaFollow
J-l HE, Plasma Engineering Lab,Department of Materials Science, Feng Chia University, Taiwan, China
K-c CHEN, Plasma Engineering Lab,Department of Materials Science, Feng Chia University, Taiwan, China

Corresponding Author

C-h Yeh(p8913558@knight.fcu.edu.tw)

Abstract

A PVD process-cathodic arc plasma ion plating was used to deposit Ni-Al films on Inconel 600 superalloy. The oxidation behaviors of PVD Ni-Al coating and the thermal sprayed CoCrAlY coatings were revealed and compared by performing cyclic thermal oxidation test at 1100 ℃ to evaluate its feasibility. Experimental results showed that the films with different compositions of Ni₆₂Al₃₈, Ni₆₃Al₃₇ and Ni₆₉Al₃₁ could be obtained when using Ni₅₂Al₄₈, Ni₆₀Al₄₀ and Ni₇₀Al₃₀ as targets, respectively. During the cyclic thermal oxidation test, the aluminum-rich Ni-Al films were beneficial to form an Al₂O₃ layer on the surface, which terminats oxidation rapidly to give a consequent oxidation mass change lower than that of thermal sprayed CoCrAlY coatings.

Keywords

Ni-Al intermetallic coatings, Thermal cycle oxidation, Bondcoat

DOI Link

https://doi.org/10.61558/2993-074X.1515

Publication Date

2003-08-28

Online Available Date

2003-08-28

Revised Date

2003-08-20

Received Date

2002-11-21

Recommended Citation

J-t CHANG, C-h Yeh, J-l HE, K-c CHEN. Comparison of Thermal Cyclic Oxidation of the PVD Ni-Al and HVOF-MCrAlY Coatings[J]. Journal of Electrochemistry, 2003 , 9(3): 272-279.
DOI: 10.61558/2993-074X.1515
Available at: https://jelectrochem.xmu.edu.cn/journal/vol9/iss3/3