A comparative study on the passive film and SCC behavior of Ti-6Al-3Nb-2Zr-1Mo alloy at various test temperatures in simulated seawater

Baozhuang Sun; Xiaokai Huang; Yue Pan; Tingting Yan; Yingxiao Zhang; Mingxian Sun; Zhiyong Liu; Lin Fan; Xiaogang Li

doi:10.1016/j.corsci.2024.112066

A comparative study on the passive film and SCC behavior of Ti-6Al-3Nb-2Zr-1Mo alloy at various test temperatures in simulated seawater

Baozhuang Sun
, Xiaokai Huang
, Yue Pan^*
, Tingting Yan
, Yingxiao Zhang
, Mingxian Sun
, Zhiyong Liu
, Lin Fan
, Xiaogang Li

^*Corresponding author for this work

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

36 Scopus citations

Abstract

In this work, the electrochemical and stress corrosion cracking (SCC) behavior of Ti-6Al-3Nb-2Zr-1Mo alloy in simulated seawater at various solution temperatures were systematically studied. Results show rising test temperature increases the point defect density in passive film and deteriorates the stability. Therefore, SCC is promoted by localized anodic dissolution (AD). At 25 °C, SCC initiates in α_p phase, and β phase hinders SCC propagation on account of the lower electrochemical activity induced by element segregation. While at 4 °C, the SCC propagation rate is higher than that at 25 °C, as the SCC propagation resistance of β phases decreases.

Original language	English
Article number	112066
Journal	Corrosion Science
Volume	233
DOIs	https://doi.org/10.1016/j.corsci.2024.112066
State	Published - Jun 2024
Externally published	Yes

Keywords

Constant load test
Passive film
Stress corrosion cracking
Titanium alloy

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10.1016/j.corsci.2024.112066

Cite this

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title = "A comparative study on the passive film and SCC behavior of Ti-6Al-3Nb-2Zr-1Mo alloy at various test temperatures in simulated seawater",

abstract = "In this work, the electrochemical and stress corrosion cracking (SCC) behavior of Ti-6Al-3Nb-2Zr-1Mo alloy in simulated seawater at various solution temperatures were systematically studied. Results show rising test temperature increases the point defect density in passive film and deteriorates the stability. Therefore, SCC is promoted by localized anodic dissolution (AD). At 25 °C, SCC initiates in αp phase, and β phase hinders SCC propagation on account of the lower electrochemical activity induced by element segregation. While at 4 °C, the SCC propagation rate is higher than that at 25 °C, as the SCC propagation resistance of β phases decreases.",

keywords = "Constant load test, Passive film, Stress corrosion cracking, Titanium alloy",

author = "Baozhuang Sun and Xiaokai Huang and Yue Pan and Tingting Yan and Yingxiao Zhang and Mingxian Sun and Zhiyong Liu and Lin Fan and Xiaogang Li",

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

year = "2024",

month = jun,

doi = "10.1016/j.corsci.2024.112066",

language = "英语",

volume = "233",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

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TY - JOUR

T1 - A comparative study on the passive film and SCC behavior of Ti-6Al-3Nb-2Zr-1Mo alloy at various test temperatures in simulated seawater

AU - Sun, Baozhuang

AU - Huang, Xiaokai

AU - Pan, Yue

AU - Yan, Tingting

AU - Zhang, Yingxiao

AU - Sun, Mingxian

AU - Liu, Zhiyong

AU - Fan, Lin

AU - Li, Xiaogang

PY - 2024/6

Y1 - 2024/6

N2 - In this work, the electrochemical and stress corrosion cracking (SCC) behavior of Ti-6Al-3Nb-2Zr-1Mo alloy in simulated seawater at various solution temperatures were systematically studied. Results show rising test temperature increases the point defect density in passive film and deteriorates the stability. Therefore, SCC is promoted by localized anodic dissolution (AD). At 25 °C, SCC initiates in αp phase, and β phase hinders SCC propagation on account of the lower electrochemical activity induced by element segregation. While at 4 °C, the SCC propagation rate is higher than that at 25 °C, as the SCC propagation resistance of β phases decreases.

AB - In this work, the electrochemical and stress corrosion cracking (SCC) behavior of Ti-6Al-3Nb-2Zr-1Mo alloy in simulated seawater at various solution temperatures were systematically studied. Results show rising test temperature increases the point defect density in passive film and deteriorates the stability. Therefore, SCC is promoted by localized anodic dissolution (AD). At 25 °C, SCC initiates in αp phase, and β phase hinders SCC propagation on account of the lower electrochemical activity induced by element segregation. While at 4 °C, the SCC propagation rate is higher than that at 25 °C, as the SCC propagation resistance of β phases decreases.

KW - Constant load test

KW - Passive film

KW - Stress corrosion cracking

KW - Titanium alloy

UR - https://www.scopus.com/pages/publications/85190763849

U2 - 10.1016/j.corsci.2024.112066

DO - 10.1016/j.corsci.2024.112066

M3 - 文章

AN - SCOPUS:85190763849

SN - 0010-938X

VL - 233

JO - Corrosion Science

JF - Corrosion Science

M1 - 112066

ER -

A comparative study on the passive film and SCC behavior of Ti-6Al-3Nb-2Zr-1Mo alloy at various test temperatures in simulated seawater

Abstract

Keywords

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