Oxidation resistance coatings of Mo-Si-B alloys via a pack cementation process

J. S. Park; J. M. Kim; H. Y. Kim; S. Yi; J. H. Perepezko

doi:10.3365/met.mat.2008.02.001

Oxidation resistance coatings of Mo-Si-B alloys via a pack cementation process

J. S. Park, J. M. Kim, H. Y. Kim, S. Yi, J. H. Perepezko

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

20 Scopus citations

Abstract

Oxidation behavior of Si pack cementation coatings on a three-phase Mo-Si-B alloy was examined. During Si pack cementation of a three-phase Mo-Si-B alloy, a MoSi₂ outer layer was synthesized on the exterior layer. Following oxidation in air of the pack-coated alloys at 1200°C, the MoSi₂ phase layer was consumed and replaced by the Mo₅Si₃ (or T₁) phase. The synthesized T₁ phase provided excellent oxidation resistance when exposed to high temperatures. The silicide-coated alloys exhibit higher oxidation resistance compared with uncoated Mo-Si-B alloys. The enhanced oxidation behavior and its mechanism are discussed in terms of the thicknesses of the oxide layers under exposure to high temperatures.

Original language	English
Pages (from-to)	1-7
Number of pages	7
Journal	Metals and Materials International
Volume	14
Issue number	1
DOIs	https://doi.org/10.3365/met.mat.2008.02.001
State	Published - Feb 2008

Keywords

Mo-Si-B alloy
Oxidation resistance
Pack cementation

Access to Document

10.3365/met.mat.2008.02.001

Cite this

@article{7cbe54d627ed48f48a83dd15a58b025c,

title = "Oxidation resistance coatings of Mo-Si-B alloys via a pack cementation process",

abstract = "Oxidation behavior of Si pack cementation coatings on a three-phase Mo-Si-B alloy was examined. During Si pack cementation of a three-phase Mo-Si-B alloy, a MoSi2 outer layer was synthesized on the exterior layer. Following oxidation in air of the pack-coated alloys at 1200°C, the MoSi2 phase layer was consumed and replaced by the Mo5Si3 (or T1) phase. The synthesized T1 phase provided excellent oxidation resistance when exposed to high temperatures. The silicide-coated alloys exhibit higher oxidation resistance compared with uncoated Mo-Si-B alloys. The enhanced oxidation behavior and its mechanism are discussed in terms of the thicknesses of the oxide layers under exposure to high temperatures.",

keywords = "Mo-Si-B alloy, Oxidation resistance, Pack cementation",

author = "Park, \{J. S.\} and Kim, \{J. M.\} and Kim, \{H. Y.\} and S. Yi and Perepezko, \{J. H.\}",

year = "2008",

month = feb,

doi = "10.3365/met.mat.2008.02.001",

language = "English",

volume = "14",

pages = "1--7",

journal = "Metals and Materials International",

issn = "1598-9623",

publisher = "Korean Institute of Metals and Materials",

number = "1",

}

TY - JOUR

T1 - Oxidation resistance coatings of Mo-Si-B alloys via a pack cementation process

AU - Park, J. S.

AU - Kim, J. M.

AU - Kim, H. Y.

AU - Yi, S.

AU - Perepezko, J. H.

PY - 2008/2

Y1 - 2008/2

N2 - Oxidation behavior of Si pack cementation coatings on a three-phase Mo-Si-B alloy was examined. During Si pack cementation of a three-phase Mo-Si-B alloy, a MoSi2 outer layer was synthesized on the exterior layer. Following oxidation in air of the pack-coated alloys at 1200°C, the MoSi2 phase layer was consumed and replaced by the Mo5Si3 (or T1) phase. The synthesized T1 phase provided excellent oxidation resistance when exposed to high temperatures. The silicide-coated alloys exhibit higher oxidation resistance compared with uncoated Mo-Si-B alloys. The enhanced oxidation behavior and its mechanism are discussed in terms of the thicknesses of the oxide layers under exposure to high temperatures.

AB - Oxidation behavior of Si pack cementation coatings on a three-phase Mo-Si-B alloy was examined. During Si pack cementation of a three-phase Mo-Si-B alloy, a MoSi2 outer layer was synthesized on the exterior layer. Following oxidation in air of the pack-coated alloys at 1200°C, the MoSi2 phase layer was consumed and replaced by the Mo5Si3 (or T1) phase. The synthesized T1 phase provided excellent oxidation resistance when exposed to high temperatures. The silicide-coated alloys exhibit higher oxidation resistance compared with uncoated Mo-Si-B alloys. The enhanced oxidation behavior and its mechanism are discussed in terms of the thicknesses of the oxide layers under exposure to high temperatures.

KW - Mo-Si-B alloy

KW - Oxidation resistance

KW - Pack cementation

UR - https://www.scopus.com/pages/publications/40949115862

U2 - 10.3365/met.mat.2008.02.001

DO - 10.3365/met.mat.2008.02.001

M3 - Article

AN - SCOPUS:40949115862

SN - 1598-9623

VL - 14

SP - 1

EP - 7

JO - Metals and Materials International

JF - Metals and Materials International

IS - 1

ER -

Oxidation resistance coatings of Mo-Si-B alloys via a pack cementation process

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this