Effects of nanosized Nb carbide precipitates on the corrosion behavior of high-strength low-alloy steel in simulated seawater

Qiyue Zhao; Zihao Wang; Endian Fan; Xiaoguang Wu; Yunhua Huang; Xiaogang Li

doi:10.20964/2017.09.35

Effects of nanosized Nb carbide precipitates on the corrosion behavior of high-strength low-alloy steel in simulated seawater

Qiyue Zhao, Zihao Wang, Endian Fan, Xiaoguang Wu, Yunhua Huang, Xiaogang Li

研究成果: Article › 査読

10 被引用数 (Scopus)

抄録

Nb is usually utilized in high-strength low-alloy (HSLA) steels as a strengthening and toughening microalloying element. HSLA steels with different Nb contents, or different amounts of precipitates were chosen to study the effects of Nb and Nb carbide precipitates on the corrosion behavior of HSLA steel in simulated seawater respectively. Microstructural and electrochemical investigations revealed that Nb enhances the corrosion resistance of HSLA steel due to the homogeneous microstructure resulted from NbC precipitation in steel. Moreover, although as a cathodic phase, the nano-sized Nb carbide precipitates have no deteriorating effect on the corrosion behavior of HSLA steel in simulated seawater.

本文言語	English
ページ（範囲）	7989-7996
ページ数	8
ジャーナル	International Journal of Electrochemical Science
巻	12
号	9
DOI	https://doi.org/10.20964/2017.09.35
出版ステータス	Published - 2017 9月 1
外部発表	はい

ASJC Scopus subject areas

電気化学

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10.20964/2017.09.35

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引用スタイル

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title = "Effects of nanosized Nb carbide precipitates on the corrosion behavior of high-strength low-alloy steel in simulated seawater",

abstract = "Nb is usually utilized in high-strength low-alloy (HSLA) steels as a strengthening and toughening microalloying element. HSLA steels with different Nb contents, or different amounts of precipitates were chosen to study the effects of Nb and Nb carbide precipitates on the corrosion behavior of HSLA steel in simulated seawater respectively. Microstructural and electrochemical investigations revealed that Nb enhances the corrosion resistance of HSLA steel due to the homogeneous microstructure resulted from NbC precipitation in steel. Moreover, although as a cathodic phase, the nano-sized Nb carbide precipitates have no deteriorating effect on the corrosion behavior of HSLA steel in simulated seawater.",

keywords = "Corrosion, HSLA steel, NbC precipitate, Simulated seawater",

author = "Qiyue Zhao and Zihao Wang and Endian Fan and Xiaoguang Wu and Yunhua Huang and Xiaogang Li",

note = "Funding Information: ACKNOWLEDGMENTS This work was supported by the National Natural Science Foundation of China (No. 51471033), the National Key Research and Development Program of China (No. 2016YFB0300604), the National Basic Research Program of China (No. 2014CB643300) and the National Environmental Corrosion Platform (NECP). Publisher Copyright: {\textcopyright} 2017 The Authors.",

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AU - Zhao, Qiyue

AU - Wang, Zihao

AU - Fan, Endian

AU - Wu, Xiaoguang

AU - Huang, Yunhua

AU - Li, Xiaogang

N1 - Funding Information: ACKNOWLEDGMENTS This work was supported by the National Natural Science Foundation of China (No. 51471033), the National Key Research and Development Program of China (No. 2016YFB0300604), the National Basic Research Program of China (No. 2014CB643300) and the National Environmental Corrosion Platform (NECP). Publisher Copyright: © 2017 The Authors.

PY - 2017/9/1

Y1 - 2017/9/1

N2 - Nb is usually utilized in high-strength low-alloy (HSLA) steels as a strengthening and toughening microalloying element. HSLA steels with different Nb contents, or different amounts of precipitates were chosen to study the effects of Nb and Nb carbide precipitates on the corrosion behavior of HSLA steel in simulated seawater respectively. Microstructural and electrochemical investigations revealed that Nb enhances the corrosion resistance of HSLA steel due to the homogeneous microstructure resulted from NbC precipitation in steel. Moreover, although as a cathodic phase, the nano-sized Nb carbide precipitates have no deteriorating effect on the corrosion behavior of HSLA steel in simulated seawater.

AB - Nb is usually utilized in high-strength low-alloy (HSLA) steels as a strengthening and toughening microalloying element. HSLA steels with different Nb contents, or different amounts of precipitates were chosen to study the effects of Nb and Nb carbide precipitates on the corrosion behavior of HSLA steel in simulated seawater respectively. Microstructural and electrochemical investigations revealed that Nb enhances the corrosion resistance of HSLA steel due to the homogeneous microstructure resulted from NbC precipitation in steel. Moreover, although as a cathodic phase, the nano-sized Nb carbide precipitates have no deteriorating effect on the corrosion behavior of HSLA steel in simulated seawater.

KW - Corrosion

KW - HSLA steel

KW - NbC precipitate

KW - Simulated seawater

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