Growth kinetics and isothermal oxidation behavior of aluminide coatings on Nb–Si based alloy

Weiping Zhang; Yanqiang Qiao; Xiping Guo

doi:10.1016/j.corsci.2022.110201

Growth kinetics and isothermal oxidation behavior of aluminide coatings on Nb–Si based alloy

Weiping Zhang
, Yanqiang Qiao
, Xiping Guo

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

19 Scopus citations

Abstract

The aim of this work was to investigate the growth behavior and microstructure formation of the aluminide coatings on Nb-Si based alloy. A kinetic equation concerning the thickness of coating with aluminizing parameters has been established. The activation energy for the growth of aluminide coating on Nb-Si based alloy was calculated to be 116.5 kJ·mol⁻¹. There was no “pest” for the (Nb,X)Al₃ coatings and protective scales can be formed on coatings after oxidation at 800–1250 ℃. The existence of Si, Cr, Hf and Ti in the coating is beneficial to improve the oxidation resistance.

Original language	English
Article number	110201
Journal	Corrosion Science
Volume	199
DOIs	https://doi.org/10.1016/j.corsci.2022.110201
State	Published - 1 May 2022

Keywords

Aluminide coating
Growth kinetics
Nb-Si based alloy
Oxidation behavior
Pack cementation

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10.1016/j.corsci.2022.110201

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title = "Growth kinetics and isothermal oxidation behavior of aluminide coatings on Nb{\textendash}Si based alloy",

abstract = "The aim of this work was to investigate the growth behavior and microstructure formation of the aluminide coatings on Nb-Si based alloy. A kinetic equation concerning the thickness of coating with aluminizing parameters has been established. The activation energy for the growth of aluminide coating on Nb-Si based alloy was calculated to be 116.5 kJ·mol−1. There was no {\textquotedblleft}pest{\textquotedblright} for the (Nb,X)Al3 coatings and protective scales can be formed on coatings after oxidation at 800{\textendash}1250 ℃. The existence of Si, Cr, Hf and Ti in the coating is beneficial to improve the oxidation resistance.",

keywords = "Aluminide coating, Growth kinetics, Nb-Si based alloy, Oxidation behavior, Pack cementation",

author = "Weiping Zhang and Yanqiang Qiao and Xiping Guo",

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year = "2022",

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doi = "10.1016/j.corsci.2022.110201",

language = "英语",

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T1 - Growth kinetics and isothermal oxidation behavior of aluminide coatings on Nb–Si based alloy

AU - Zhang, Weiping

AU - Qiao, Yanqiang

AU - Guo, Xiping

PY - 2022/5/1

Y1 - 2022/5/1

N2 - The aim of this work was to investigate the growth behavior and microstructure formation of the aluminide coatings on Nb-Si based alloy. A kinetic equation concerning the thickness of coating with aluminizing parameters has been established. The activation energy for the growth of aluminide coating on Nb-Si based alloy was calculated to be 116.5 kJ·mol−1. There was no “pest” for the (Nb,X)Al3 coatings and protective scales can be formed on coatings after oxidation at 800–1250 ℃. The existence of Si, Cr, Hf and Ti in the coating is beneficial to improve the oxidation resistance.

AB - The aim of this work was to investigate the growth behavior and microstructure formation of the aluminide coatings on Nb-Si based alloy. A kinetic equation concerning the thickness of coating with aluminizing parameters has been established. The activation energy for the growth of aluminide coating on Nb-Si based alloy was calculated to be 116.5 kJ·mol−1. There was no “pest” for the (Nb,X)Al3 coatings and protective scales can be formed on coatings after oxidation at 800–1250 ℃. The existence of Si, Cr, Hf and Ti in the coating is beneficial to improve the oxidation resistance.

KW - Aluminide coating

KW - Growth kinetics

KW - Nb-Si based alloy

KW - Oxidation behavior

KW - Pack cementation

UR - https://www.scopus.com/pages/publications/85125485469

U2 - 10.1016/j.corsci.2022.110201

DO - 10.1016/j.corsci.2022.110201

M3 - 文章

AN - SCOPUS:85125485469

SN - 0010-938X

VL - 199

JO - Corrosion Science

JF - Corrosion Science

M1 - 110201

ER -

Growth kinetics and isothermal oxidation behavior of aluminide coatings on Nb–Si based alloy

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Keywords

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