Co-deposition of Si and B to form oxidation-resistant coatings on an Nb-Ti-Si based ultrahigh temperature alloy by pack cementation technique

Yanqiang Qiao; Zhe Shen; Xiping Guo

doi:10.1016/j.corsci.2015.01.013

Co-deposition of Si and B to form oxidation-resistant coatings on an Nb-Ti-Si based ultrahigh temperature alloy by pack cementation technique

Yanqiang Qiao
, Zhe Shen
, Xiping Guo

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

66 Scopus citations

Abstract

In this work, we study the oxidation behavior of a B-modified silicide coating at 900-1350°C. The coating was prepared by pack cementation, which mainly consisted of a (Nb,X)Si₂+(Nb,X)B₂ outer layer, a (Nb,X)Si₂ intermediate layer and an inner layer. At 900 and 1250°C, the evolution of the mass gain versus time showed parabolic-like kinetics; while at 1350°C, the evolution seemed to follow a linear-like kinetic, but could protect the alloy from oxidation for at least 60h. The good oxidation resistance of the B-modified silicide coating was attributed to the formation of a dense glass-like scale.

Original language	English
Pages (from-to)	126-137
Number of pages	12
Journal	Corrosion Science
Volume	93
DOIs	https://doi.org/10.1016/j.corsci.2015.01.013
State	Published - 1 Apr 2015

Keywords

A. Alloy
A. Intermetallic
A. Metal coatings
C. Oxidation

Access to Document

10.1016/j.corsci.2015.01.013

Cite this

@article{4cd5ea849b804e68808b6639c0648f60,

title = "Co-deposition of Si and B to form oxidation-resistant coatings on an Nb-Ti-Si based ultrahigh temperature alloy by pack cementation technique",

abstract = "In this work, we study the oxidation behavior of a B-modified silicide coating at 900-1350°C. The coating was prepared by pack cementation, which mainly consisted of a (Nb,X)Si2+(Nb,X)B2 outer layer, a (Nb,X)Si2 intermediate layer and an inner layer. At 900 and 1250°C, the evolution of the mass gain versus time showed parabolic-like kinetics; while at 1350°C, the evolution seemed to follow a linear-like kinetic, but could protect the alloy from oxidation for at least 60h. The good oxidation resistance of the B-modified silicide coating was attributed to the formation of a dense glass-like scale.",

keywords = "A. Alloy, A. Intermetallic, A. Metal coatings, C. Oxidation",

author = "Yanqiang Qiao and Zhe Shen and Xiping Guo",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

year = "2015",

month = apr,

day = "1",

doi = "10.1016/j.corsci.2015.01.013",

language = "英语",

volume = "93",

pages = "126--137",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Co-deposition of Si and B to form oxidation-resistant coatings on an Nb-Ti-Si based ultrahigh temperature alloy by pack cementation technique

AU - Qiao, Yanqiang

AU - Shen, Zhe

AU - Guo, Xiping

PY - 2015/4/1

Y1 - 2015/4/1

N2 - In this work, we study the oxidation behavior of a B-modified silicide coating at 900-1350°C. The coating was prepared by pack cementation, which mainly consisted of a (Nb,X)Si2+(Nb,X)B2 outer layer, a (Nb,X)Si2 intermediate layer and an inner layer. At 900 and 1250°C, the evolution of the mass gain versus time showed parabolic-like kinetics; while at 1350°C, the evolution seemed to follow a linear-like kinetic, but could protect the alloy from oxidation for at least 60h. The good oxidation resistance of the B-modified silicide coating was attributed to the formation of a dense glass-like scale.

AB - In this work, we study the oxidation behavior of a B-modified silicide coating at 900-1350°C. The coating was prepared by pack cementation, which mainly consisted of a (Nb,X)Si2+(Nb,X)B2 outer layer, a (Nb,X)Si2 intermediate layer and an inner layer. At 900 and 1250°C, the evolution of the mass gain versus time showed parabolic-like kinetics; while at 1350°C, the evolution seemed to follow a linear-like kinetic, but could protect the alloy from oxidation for at least 60h. The good oxidation resistance of the B-modified silicide coating was attributed to the formation of a dense glass-like scale.

KW - A. Alloy

KW - A. Intermetallic

KW - A. Metal coatings

KW - C. Oxidation

UR - https://www.scopus.com/pages/publications/84925362023

U2 - 10.1016/j.corsci.2015.01.013

DO - 10.1016/j.corsci.2015.01.013

M3 - 文章

AN - SCOPUS:84925362023

SN - 0010-938X

VL - 93

SP - 126

EP - 137

JO - Corrosion Science

JF - Corrosion Science

ER -

Co-deposition of Si and B to form oxidation-resistant coatings on an Nb-Ti-Si based ultrahigh temperature alloy by pack cementation technique

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this