ScholarLens Back to search
2011•Electronic Components and MaterialsRequires access

Effects of vacuum heat treatment on high temperature oxidation behavior of the surfaces of sputtered NiCrAlY films

Xingzhao Liu

Open publisher page 1 citations

Abstract

NiCrAlY films were deposited on the nickel-based superalloy DZ4 by DC magnetron sputtering.The NiCrAlY films were annealed in vacuum and then oxidized at high temperature to form a layer of dense Al2O3 on the surface of the film.The effects of vacuum heat treatment on high temperature oxidation behavior of the surfaces of sputtered NiCrAlY films were studied.The results show that a single stable α-Al2O3 phase is formed on the surface of the NiCrAlY film which is oxidized at high temperature in oxygen atmosphere after vacuum heat treatment,and the population fractions of Al and O on the surface of this film are about 32% and 50%,respectively.θ-Al2O3 and α-Al2O3 phases are formed on the surface of the NiCrAlY film without vacuum heat treatment after high temperature oxidation,and with uneven distribution.

About this research paper

What this paper is about

NiCrAlY films were deposited on the nickel-based superalloy DZ4 by DC magnetron sputtering.The NiCrAlY films were annealed in vacuum and then oxidized at high temperature to form a layer of dense Al2O3 on the surface of the film.The effects of vacuum heat treatment on high temperature oxidation behavior of the surfaces of sputtered NiCrAlY films were studied.The results show that a single stable α-Al2O3 phase is formed on the surface of the NiCrAlY film which is oxidized at high temperature in oxygen atmosphere after vacuum heat treatment,and the population fractions of Al and O on the surface of this film are about 32% and 50%,respectively.θ-Al2O3 and α-Al2O3 phases are formed on the surface of the NiCrAlY film without vacuum heat treatment after high temperature oxidation,and with uneven distribution.

Why it matters

OpenAlex reports 1 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

NiCrAlY films were deposited on the nickel-based superalloy DZ4 by DC magnetron sputtering.The NiCrAlY films were annealed in vacuum and then oxidized at high temperature to form a layer of dense Al2O3 on the surface of the film.The effects of vacuum heat treatment on high temperature oxidation behavior of the surfaces of sputtered NiCrAlY films were studied.The results show that a single stable α-Al2O3 phase is formed on the surface of the NiCrAlY film which is oxidized at high temperature in oxygen atmosphere after vacuum heat treatment,and the population fractions of Al and O on the surface of this film are about 32% and 50%,respectively.θ-Al2O3 and α-Al2O3 phases are formed on the surface of the NiCrAlY film without vacuum heat treatment after high temperature oxidation,and with uneven distribution.

Key concepts: Materials science, Superalloy, Ultra-high vacuum, Metallurgy, Sputtering, Sputter deposition, Layer (electronics), Composite material

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
Effects of vacuum heat treatment on high temperature oxidation behavior of the surfaces of sputtered NiCrAlY films — Research Paper | ScholarLens