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
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
Included in
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