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

Authors

Chang J.T., Plasma Engineering Lab,Department of Materials Science, Feng Chia University, Taiwan, China;
H. Yeh C., Plasma Engineering Lab,Department of Materials Science, Feng Chia University, Taiwan, China;
He J.L., Plasma Engineering Lab,Department of Materials Science, Feng Chia University, Taiwan, China;
Chen K.C., Plasma Engineering Lab,Department of Materials Science, Feng Chia University, Taiwan, China;

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 1 100 ℃ to evaluate its feasibility. Experimental results showed that the films with different compositions of Ni 62 Al 38 , Ni 63 Al 37 and Ni 69 Al 31 could be obtained when using Ni 52 Al 48 , Ni 60 Al 40 and Ni 70 Al 30 as targets, respectively. During the cyclic thermal oxidation test, the aluminum_rich Ni_Al films were beneficial to form an Al 2O 3 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

2003-08-28

Received Date

2003-08-28

Recommended Citation

Chang J.T., H. Yeh C., He J.L., Chen K.C.. 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

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