EFFECTS OF HEAT TREATMENTS ON ALUMINUM OXIDE COATINGS DEPOSITED ONNi-BASED ALLOY

Xiufeng Tang (), Fa Luo, Chunhan Hseih and Xiangyu Li
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Xiufeng Tang: State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, P. R. China
Fa Luo: State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, P. R. China
Chunhan Hseih: Department of Electrical Engineering and Computer Science, Northwestern University Evanston, Illinois 60208, United States
Xiangyu Li: Department of Electrical Engineering and Computer Science, Northwestern University Evanston, Illinois 60208, United States

Surface Review and Letters (SRL), 2015, vol. 22, issue 01, 1-8

Abstract: AlxOyfilms coated on bothNi-based superalloy and silica substrates were prepared by DC reactive magnetron sputtering. Post-deposition annealing was carried out on those as-deposited films. And then 1 h heat treatments were done on the annealed films at constant temperatures ranging from 600–900°C to simulate the high-temperature application. TheAlxOyfilm heated at 600°C exhibited good film property. Bonding strength between the 600°C-heatedAlxOyfilm and theNi-based substrate was about 11.6 MPa.

Keywords: Aluminum oxide film; Ni-based superalloy; heat treatments; bonding strength (search for similar items in EconPapers)
Date: 2015
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DOI: 10.1142/S0218625X1550016X

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