Comparative study on mechanical and corrosion fatigue properties of high-strength bridge steels produced by TMCP and intercritical quenching & tempering process

Jun Wang; Liyang Sun; Hongchi Ma; Xuequn Cheng; Xiaogang Li

doi:10.1016/j.msea.2022.143771

Comparative study on mechanical and corrosion fatigue properties of high-strength bridge steels produced by TMCP and intercritical quenching & tempering process

Jun Wang
, Liyang Sun
, Hongchi Ma^*
, Xuequn Cheng
, Xiaogang Li

^*Corresponding author for this work

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

23 Scopus citations

Abstract

The mechanical and corrosion fatigue properties of Q690 bridge steels produced by two different process were comparatively investigated. The steel produced by thermal-mechanical controlled processing (TMCP) and tempering had a slightly superior corrosion fatigue property to that produced by intercritical quenching & tempering (IQT). However, the TMCP + T prepared steel had a poor ductility and corrosion fatigue microcracks were prone to initiate due to high density of dislocations and M/A constituents. On the contrary, the steel produced by IQT had a good combination of mechanical and corrosion fatigue property. The corrosion fatigue initiation and propagation mechanism for both steels was proposed.

Original language	English
Article number	143771
Journal	Materials Science and Engineering: A
Volume	853
DOIs	https://doi.org/10.1016/j.msea.2022.143771
State	Published - 15 Sep 2022
Externally published	Yes

Keywords

Coastal-industrial marine environment
Corrosion fatigue
High-strength bridge steel
Intercritical quenching & tempering
Micro-galvanic corrosion

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10.1016/j.msea.2022.143771

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title = "Comparative study on mechanical and corrosion fatigue properties of high-strength bridge steels produced by TMCP and intercritical quenching \& tempering process",

abstract = "The mechanical and corrosion fatigue properties of Q690 bridge steels produced by two different process were comparatively investigated. The steel produced by thermal-mechanical controlled processing (TMCP) and tempering had a slightly superior corrosion fatigue property to that produced by intercritical quenching \& tempering (IQT). However, the TMCP + T prepared steel had a poor ductility and corrosion fatigue microcracks were prone to initiate due to high density of dislocations and M/A constituents. On the contrary, the steel produced by IQT had a good combination of mechanical and corrosion fatigue property. The corrosion fatigue initiation and propagation mechanism for both steels was proposed.",

keywords = "Coastal-industrial marine environment, Corrosion fatigue, High-strength bridge steel, Intercritical quenching \& tempering, Micro-galvanic corrosion",

author = "Jun Wang and Liyang Sun and Hongchi Ma and Xuequn Cheng and Xiaogang Li",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

month = sep,

day = "15",

doi = "10.1016/j.msea.2022.143771",

language = "英语",

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journal = "Materials Science and Engineering: A",

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TY - JOUR

T1 - Comparative study on mechanical and corrosion fatigue properties of high-strength bridge steels produced by TMCP and intercritical quenching & tempering process

AU - Wang, Jun

AU - Sun, Liyang

AU - Ma, Hongchi

AU - Cheng, Xuequn

AU - Li, Xiaogang

PY - 2022/9/15

Y1 - 2022/9/15

N2 - The mechanical and corrosion fatigue properties of Q690 bridge steels produced by two different process were comparatively investigated. The steel produced by thermal-mechanical controlled processing (TMCP) and tempering had a slightly superior corrosion fatigue property to that produced by intercritical quenching & tempering (IQT). However, the TMCP + T prepared steel had a poor ductility and corrosion fatigue microcracks were prone to initiate due to high density of dislocations and M/A constituents. On the contrary, the steel produced by IQT had a good combination of mechanical and corrosion fatigue property. The corrosion fatigue initiation and propagation mechanism for both steels was proposed.

AB - The mechanical and corrosion fatigue properties of Q690 bridge steels produced by two different process were comparatively investigated. The steel produced by thermal-mechanical controlled processing (TMCP) and tempering had a slightly superior corrosion fatigue property to that produced by intercritical quenching & tempering (IQT). However, the TMCP + T prepared steel had a poor ductility and corrosion fatigue microcracks were prone to initiate due to high density of dislocations and M/A constituents. On the contrary, the steel produced by IQT had a good combination of mechanical and corrosion fatigue property. The corrosion fatigue initiation and propagation mechanism for both steels was proposed.

KW - Coastal-industrial marine environment

KW - Corrosion fatigue

KW - High-strength bridge steel

KW - Intercritical quenching & tempering

KW - Micro-galvanic corrosion

UR - https://www.scopus.com/pages/publications/85135956653

U2 - 10.1016/j.msea.2022.143771

DO - 10.1016/j.msea.2022.143771

M3 - 文章

AN - SCOPUS:85135956653

SN - 0921-5093

VL - 853

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

M1 - 143771

ER -

Comparative study on mechanical and corrosion fatigue properties of high-strength bridge steels produced by TMCP and intercritical quenching & tempering process

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Keywords

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