Investigation on the mechanism of deteriorated oxidation resistance of Ti(C0.7,N0.3)-304ss cermet doped with Y during the early oxidation stage

Lin He; Anping Dong; Yimin Gao; Yefei Li; Dafan Du; Donghong Wang; Guoliang Zhu; Yanling Lu; Baode Sun

doi:10.1016/j.corsci.2021.109499

Investigation on the mechanism of deteriorated oxidation resistance of Ti(C_0.7,N_0.3)-304ss cermet doped with Y during the early oxidation stage

Lin He
, Anping Dong
, Yimin Gao
, Yefei Li
, Dafan Du
, Donghong Wang
, Guoliang Zhu
, Yanling Lu
, Baode Sun

School of Materials Science and Engineering

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

4 Scopus citations

Abstract

The high-temperature oxidation resistance of the Ti(C_0.7,N_0.3)-304ss cermets during the early oxidation stage was deteriorated by adding Y. The outward diffusion of Fe atoms was improved with Y addition, and a Fe-rich outer oxide layer was generated on the surface. Impurities at phase boundary act as barriers to suppress the diffusion of Fe and O atoms; while they were purified by Y atoms, and the barriers were destroyed. As a result, the oxidation resistance deteriorated. The apparent activation energy of the cermets declined from 207.18 KJ/mol to 149.97 KJ/mol by doping with Y.

Original language	English
Article number	109499
Journal	Corrosion Science
Volume	187
DOIs	https://doi.org/10.1016/j.corsci.2021.109499
State	Published - 15 Jul 2021

Keywords

Cermet
Oxidation
Rare earth element
Ti(C,N)

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10.1016/j.corsci.2021.109499

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title = "Investigation on the mechanism of deteriorated oxidation resistance of Ti(C0.7,N0.3)-304ss cermet doped with Y during the early oxidation stage",

abstract = "The high-temperature oxidation resistance of the Ti(C0.7,N0.3)-304ss cermets during the early oxidation stage was deteriorated by adding Y. The outward diffusion of Fe atoms was improved with Y addition, and a Fe-rich outer oxide layer was generated on the surface. Impurities at phase boundary act as barriers to suppress the diffusion of Fe and O atoms; while they were purified by Y atoms, and the barriers were destroyed. As a result, the oxidation resistance deteriorated. The apparent activation energy of the cermets declined from 207.18 KJ/mol to 149.97 KJ/mol by doping with Y.",

keywords = "Cermet, Oxidation, Rare earth element, Ti(C,N)",

author = "Lin He and Anping Dong and Yimin Gao and Yefei Li and Dafan Du and Donghong Wang and Guoliang Zhu and Yanling Lu and Baode Sun",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier Ltd",

year = "2021",

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doi = "10.1016/j.corsci.2021.109499",

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TY - JOUR

T1 - Investigation on the mechanism of deteriorated oxidation resistance of Ti(C0.7,N0.3)-304ss cermet doped with Y during the early oxidation stage

AU - He, Lin

AU - Dong, Anping

AU - Gao, Yimin

AU - Li, Yefei

AU - Du, Dafan

AU - Wang, Donghong

AU - Zhu, Guoliang

AU - Lu, Yanling

AU - Sun, Baode

PY - 2021/7/15

Y1 - 2021/7/15

N2 - The high-temperature oxidation resistance of the Ti(C0.7,N0.3)-304ss cermets during the early oxidation stage was deteriorated by adding Y. The outward diffusion of Fe atoms was improved with Y addition, and a Fe-rich outer oxide layer was generated on the surface. Impurities at phase boundary act as barriers to suppress the diffusion of Fe and O atoms; while they were purified by Y atoms, and the barriers were destroyed. As a result, the oxidation resistance deteriorated. The apparent activation energy of the cermets declined from 207.18 KJ/mol to 149.97 KJ/mol by doping with Y.

AB - The high-temperature oxidation resistance of the Ti(C0.7,N0.3)-304ss cermets during the early oxidation stage was deteriorated by adding Y. The outward diffusion of Fe atoms was improved with Y addition, and a Fe-rich outer oxide layer was generated on the surface. Impurities at phase boundary act as barriers to suppress the diffusion of Fe and O atoms; while they were purified by Y atoms, and the barriers were destroyed. As a result, the oxidation resistance deteriorated. The apparent activation energy of the cermets declined from 207.18 KJ/mol to 149.97 KJ/mol by doping with Y.

KW - Cermet

KW - Oxidation

KW - Rare earth element

KW - Ti(C,N)

UR - https://www.scopus.com/pages/publications/85105253343

U2 - 10.1016/j.corsci.2021.109499

DO - 10.1016/j.corsci.2021.109499

M3 - 文章

AN - SCOPUS:85105253343

SN - 0010-938X

VL - 187

JO - Corrosion Science

JF - Corrosion Science

M1 - 109499

ER -

Investigation on the mechanism of deteriorated oxidation resistance of Ti(C_0.7,N_0.3)-304ss cermet doped with Y during the early oxidation stage

Abstract

Keywords

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