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Title: High-temperature oxidation of Ti{sub 0.3}Al{sub 0.2}N{sub 0.5} thin films deposited on a steel substrate by ion plating

Abstract

To improve the high-temperature oxidation resistance of STD61 steels used as hot dies or cutting tools, TI{sub 0.3}Al{sub 0.2}N{sub 0.5} films were deposited on STD61 steel substrates by arc-ion plating. The deposited film consisted of Ti{sub 3}Al{sub 2}N{sub 2} and Ti{sub 2}N phases. The oxidation characteristics were studied at temperatures ranging from 700 to 900 C in air. The deposited STD61 steels displayed excellent oxidation resistance up to 800 C, but exhibited large weight gains and breakaway oxidation at 900 C. The oxidation products were primarily Fe{sub 2}O{sub 3}, TiO, TiO{sub 2}, and {alpha}-Al{sub 2}O{sub 3}, the relative amount of each oxide being dependent on the oxidation condition. Among various oxides, TiO{sub 2} and {alpha}-Al{sub 2}O{sub 3} were the major oxides at 800 C for at least up to 16 hr. However, at a higher temperature or a longer oxidation period, the significant outward diffusion of iron from the substrate resulted in the formation of iron oxides, together with other oxides of Ti and Al.

Authors:
; ; ;
Publication Date:
Research Org.:
Sungkyunkwan Univ., Suwon (KR)
OSTI Identifier:
20050531
Resource Type:
Journal Article
Journal Name:
Oxidation of Metals
Additional Journal Information:
Journal Volume: 53; Journal Issue: 5-6; Other Information: PBD: Jun 2000; Journal ID: ISSN 0030-770X
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; OXIDATION; TITANIUM NITRIDES; ALUMINIUM NITRIDES; THIN FILMS; DEPOSITION; SUBSTRATES; STEELS; TEMPERATURE DEPENDENCE; DIFFUSION

Citation Formats

Woo, J.H., Lee, J.K, Lee, S.R., and Lee, D.B. High-temperature oxidation of Ti{sub 0.3}Al{sub 0.2}N{sub 0.5} thin films deposited on a steel substrate by ion plating. United States: N. p., 2000. Web. doi:10.1023/A:1004685010393.
Woo, J.H., Lee, J.K, Lee, S.R., & Lee, D.B. High-temperature oxidation of Ti{sub 0.3}Al{sub 0.2}N{sub 0.5} thin films deposited on a steel substrate by ion plating. United States. doi:10.1023/A:1004685010393.
Woo, J.H., Lee, J.K, Lee, S.R., and Lee, D.B. Thu . "High-temperature oxidation of Ti{sub 0.3}Al{sub 0.2}N{sub 0.5} thin films deposited on a steel substrate by ion plating". United States. doi:10.1023/A:1004685010393.
@article{osti_20050531,
title = {High-temperature oxidation of Ti{sub 0.3}Al{sub 0.2}N{sub 0.5} thin films deposited on a steel substrate by ion plating},
author = {Woo, J.H. and Lee, J.K and Lee, S.R. and Lee, D.B.},
abstractNote = {To improve the high-temperature oxidation resistance of STD61 steels used as hot dies or cutting tools, TI{sub 0.3}Al{sub 0.2}N{sub 0.5} films were deposited on STD61 steel substrates by arc-ion plating. The deposited film consisted of Ti{sub 3}Al{sub 2}N{sub 2} and Ti{sub 2}N phases. The oxidation characteristics were studied at temperatures ranging from 700 to 900 C in air. The deposited STD61 steels displayed excellent oxidation resistance up to 800 C, but exhibited large weight gains and breakaway oxidation at 900 C. The oxidation products were primarily Fe{sub 2}O{sub 3}, TiO, TiO{sub 2}, and {alpha}-Al{sub 2}O{sub 3}, the relative amount of each oxide being dependent on the oxidation condition. Among various oxides, TiO{sub 2} and {alpha}-Al{sub 2}O{sub 3} were the major oxides at 800 C for at least up to 16 hr. However, at a higher temperature or a longer oxidation period, the significant outward diffusion of iron from the substrate resulted in the formation of iron oxides, together with other oxides of Ti and Al.},
doi = {10.1023/A:1004685010393},
journal = {Oxidation of Metals},
issn = {0030-770X},
number = 5-6,
volume = 53,
place = {United States},
year = {2000},
month = {6}
}