Isothermal oxidation behavior of Haynes 230 alloy in air at 1100°C

Dongmei Liu; Rui Hu; Jinshan Li; Yi Liu; Hongchao Kou; Hengzhi Fu

Isothermal oxidation behavior of Haynes 230 alloy in air at 1100°C

Dongmei Liu, Rui Hu, Jinshan Li, Yi Liu, Hongchao Kou, Hengzhi Fu

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

The isothermal oxidation behavior of Haynes 230 alloy (Ni-Cr-W-Mo alloy) in air at 1100°Cwas investigated by means of SAXD and SEM (EDAX). The predominant phase in the oxide scales were Cr₂O₃ and (Ni, Mn, Cr)₃O₄. Multilayer was observed with increasing of oxidation time. The outer (Ni, Mn, Cr)₃O₄ scale may reduce the volatilization of inner Cr₂O₃ scale and its oxidation behavior almost followed parabolic law. Due to preferential diffusion of manganese and chromium, alloy composition beneath the oxide scale changed, which led to subsurface degradation such as intergranular oxidation, void formation, and no carbide zone formation.

Original language	English
Pages (from-to)	1545-1548
Number of pages	4
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	37
Issue number	9
State	Published - Sep 2008

Keywords

(Ni, Mn, Cr)O
CrO
Haynes 230 alloy
Oxidation
Subsurface degradation

Cite this

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title = "Isothermal oxidation behavior of Haynes 230 alloy in air at 1100°C",

abstract = "The isothermal oxidation behavior of Haynes 230 alloy (Ni-Cr-W-Mo alloy) in air at 1100°Cwas investigated by means of SAXD and SEM (EDAX). The predominant phase in the oxide scales were Cr2O3 and (Ni, Mn, Cr)3O4. Multilayer was observed with increasing of oxidation time. The outer (Ni, Mn, Cr)3O4 scale may reduce the volatilization of inner Cr2O3 scale and its oxidation behavior almost followed parabolic law. Due to preferential diffusion of manganese and chromium, alloy composition beneath the oxide scale changed, which led to subsurface degradation such as intergranular oxidation, void formation, and no carbide zone formation.",

keywords = "(Ni, Mn, Cr)O, CrO, Haynes 230 alloy, Oxidation, Subsurface degradation",

author = "Dongmei Liu and Rui Hu and Jinshan Li and Yi Liu and Hongchao Kou and Hengzhi Fu",

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TY - JOUR

T1 - Isothermal oxidation behavior of Haynes 230 alloy in air at 1100°C

AU - Liu, Dongmei

AU - Hu, Rui

AU - Li, Jinshan

AU - Liu, Yi

AU - Kou, Hongchao

AU - Fu, Hengzhi

PY - 2008/9

Y1 - 2008/9

N2 - The isothermal oxidation behavior of Haynes 230 alloy (Ni-Cr-W-Mo alloy) in air at 1100°Cwas investigated by means of SAXD and SEM (EDAX). The predominant phase in the oxide scales were Cr2O3 and (Ni, Mn, Cr)3O4. Multilayer was observed with increasing of oxidation time. The outer (Ni, Mn, Cr)3O4 scale may reduce the volatilization of inner Cr2O3 scale and its oxidation behavior almost followed parabolic law. Due to preferential diffusion of manganese and chromium, alloy composition beneath the oxide scale changed, which led to subsurface degradation such as intergranular oxidation, void formation, and no carbide zone formation.

AB - The isothermal oxidation behavior of Haynes 230 alloy (Ni-Cr-W-Mo alloy) in air at 1100°Cwas investigated by means of SAXD and SEM (EDAX). The predominant phase in the oxide scales were Cr2O3 and (Ni, Mn, Cr)3O4. Multilayer was observed with increasing of oxidation time. The outer (Ni, Mn, Cr)3O4 scale may reduce the volatilization of inner Cr2O3 scale and its oxidation behavior almost followed parabolic law. Due to preferential diffusion of manganese and chromium, alloy composition beneath the oxide scale changed, which led to subsurface degradation such as intergranular oxidation, void formation, and no carbide zone formation.

KW - (Ni, Mn, Cr)O

KW - CrO

KW - Haynes 230 alloy

KW - Oxidation

KW - Subsurface degradation

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M3 - 文章

AN - SCOPUS:55149107883

SN - 1002-185X

VL - 37

SP - 1545

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JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering

IS - 9

ER -

Isothermal oxidation behavior of Haynes 230 alloy in air at 1100°C

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Keywords

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