Corrosion resistant body-centered cubic VNbTa refractory medium-entropy alloy

Zhenhua Han; Chenhui Guo; Chaodai Huang; Xiaoyu Fan; Jinyang Zhang; Gang Liu; Hongyan Wang; Ran Wei

doi:10.1016/j.corsci.2024.111885

Corrosion resistant body-centered cubic VNbTa refractory medium-entropy alloy

Zhenhua Han
, Chenhui Guo
, Chaodai Huang
, Xiaoyu Fan
, Jinyang Zhang
, Gang Liu
, Hongyan Wang
, Ran Wei

Xi'an University of Technology
Xi’an Special Equipment Inspection Institute
Zhengzhou University of Aeronautics
Zhengzhou University

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

29 Scopus citations

Abstract

The corrosion behavior of VNbTa medium-entropy alloy (MEA) was investigated by electrochemical measurement and first-principles calculation. Due to the synergism of higher bond strength and higher oxygen or OH adsorption heat among constituent elements, the MEA has better corrosion resistance than 316 L stainless steel. The stability passive film was related to the high-valent oxides (V₂O₅, Nb₂O₅, and Ta₂O₅). The calculation results show that VNbTa MEA has a high work function and adsorption energy for O, and the formation of initial passive film is mainly determined by the bonding of surface Ta, V atoms and O atoms.

Original language	English
Article number	111885
Journal	Corrosion Science
Volume	229
DOIs	https://doi.org/10.1016/j.corsci.2024.111885
State	Published - 1 Apr 2024
Externally published	Yes

Keywords

Corrosion behavior
First-principles calculation
Medium-entropy alloys
Passive film
XPS

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10.1016/j.corsci.2024.111885

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@article{2d8d016e46ee4d5fb871e3398d301471,

title = "Corrosion resistant body-centered cubic VNbTa refractory medium-entropy alloy",

abstract = "The corrosion behavior of VNbTa medium-entropy alloy (MEA) was investigated by electrochemical measurement and first-principles calculation. Due to the synergism of higher bond strength and higher oxygen or OH adsorption heat among constituent elements, the MEA has better corrosion resistance than 316 L stainless steel. The stability passive film was related to the high-valent oxides (V2O5, Nb2O5, and Ta2O5). The calculation results show that VNbTa MEA has a high work function and adsorption energy for O, and the formation of initial passive film is mainly determined by the bonding of surface Ta, V atoms and O atoms.",

keywords = "Corrosion behavior, First-principles calculation, Medium-entropy alloys, Passive film, XPS",

author = "Zhenhua Han and Chenhui Guo and Chaodai Huang and Xiaoyu Fan and Jinyang Zhang and Gang Liu and Hongyan Wang and Ran Wei",

note = "Publisher Copyright: {\textcopyright} 2024 Elsevier Ltd",

year = "2024",

month = apr,

day = "1",

doi = "10.1016/j.corsci.2024.111885",

language = "英语",

volume = "229",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Corrosion resistant body-centered cubic VNbTa refractory medium-entropy alloy

AU - Han, Zhenhua

AU - Guo, Chenhui

AU - Huang, Chaodai

AU - Fan, Xiaoyu

AU - Zhang, Jinyang

AU - Liu, Gang

AU - Wang, Hongyan

AU - Wei, Ran

PY - 2024/4/1

Y1 - 2024/4/1

N2 - The corrosion behavior of VNbTa medium-entropy alloy (MEA) was investigated by electrochemical measurement and first-principles calculation. Due to the synergism of higher bond strength and higher oxygen or OH adsorption heat among constituent elements, the MEA has better corrosion resistance than 316 L stainless steel. The stability passive film was related to the high-valent oxides (V2O5, Nb2O5, and Ta2O5). The calculation results show that VNbTa MEA has a high work function and adsorption energy for O, and the formation of initial passive film is mainly determined by the bonding of surface Ta, V atoms and O atoms.

AB - The corrosion behavior of VNbTa medium-entropy alloy (MEA) was investigated by electrochemical measurement and first-principles calculation. Due to the synergism of higher bond strength and higher oxygen or OH adsorption heat among constituent elements, the MEA has better corrosion resistance than 316 L stainless steel. The stability passive film was related to the high-valent oxides (V2O5, Nb2O5, and Ta2O5). The calculation results show that VNbTa MEA has a high work function and adsorption energy for O, and the formation of initial passive film is mainly determined by the bonding of surface Ta, V atoms and O atoms.

KW - Corrosion behavior

KW - First-principles calculation

KW - Medium-entropy alloys

KW - Passive film

KW - XPS

UR - https://www.scopus.com/pages/publications/85185303720

U2 - 10.1016/j.corsci.2024.111885

DO - 10.1016/j.corsci.2024.111885

M3 - 文章

AN - SCOPUS:85185303720

SN - 0010-938X

VL - 229

JO - Corrosion Science

JF - Corrosion Science

M1 - 111885

ER -

Corrosion resistant body-centered cubic VNbTa refractory medium-entropy alloy

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Keywords

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