Correlation of Microstructure Feature with Impact Fracture Behavior in a TMCP Processed High Strength Low Alloy Construction Steel

doi:10.1007/s40195-021-01250-0

IMR OpenIR

	Correlation of Microstructure Feature with Impact Fracture Behavior in a TMCP Processed High Strength Low Alloy Construction Steel
	Zhu, Wen-Ting 1; Cui, Jun-Jun 2; Chen, Zhen-Ye 1,3; Zhao, Yang 4; Chen, Li-Qing 1
通讯作者	Cui, Jun-Jun(junjun_cui@163.com) ; Chen, Li-Qing(lqchen@mail.neu.edu.cn)
	2021-05-13
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
页码	10
摘要	The present article aims at elucidating the effect of thermo-mechanical controlled processing (TMCP), especially the finish cooling temperature, on microstructure and mechanical properties of high strength low alloy steels for developing superior low temperature toughness construction steel. The microstructural features were characterized by scanning electron microscope equipped with electron backscatter diffraction, and the mechanical behaviors in terms of tensile properties and impact toughness were analyzed in correlation with microstructural evolution. The results showed that the lower finish cooling temperature could lead to a considerable increase in impact toughness for this steel. A mixed microstructure was obtained by TMCP at lower finish cooling temperature, which contained much fine lath-like bainite with dot-shaped M/A constituent and less granular bainite and bainite ferrite. In this case, this steel possesses yield and ultimate tensile strengths of similar to 885 MPa and 1089 MPa, respectively, and a total elongation of similar to 15.3%, while it has a lower yield ratio of similar to 0.81. The superior impact toughness of similar to 89 J at -20 degrees C was obtained, and this was resulted from the multi-phase microstructure including grain refinement, preferred grain boundaries misorientation, fine lath-like bainite with dot-shaped M/A constituent.
关键词	High strength low alloy steel Thermo-mechanical controlled processing (TMCP) Finish cooling temperature Microstructure Mechanical properties Impact toughness
资助者	National Natural Science Foundation of China ; Independent Project of State Key Laboratory of Rolling and Automation, Northeastern University ; Key Research and Development Program of Hebei Province of China ; Start-up Project of Doctor Scientific Research of Liaoning Province
DOI	10.1007/s40195-021-01250-0
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51904071] ; Independent Project of State Key Laboratory of Rolling and Automation, Northeastern University[ZZ202001] ; Key Research and Development Program of Hebei Province of China[18211019D] ; Start-up Project of Doctor Scientific Research of Liaoning Province[2020-BS-271]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000650107400002
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/161818
专题	中国科学院金属研究所
通讯作者	Cui, Jun-Jun; Chen, Li-Qing
作者单位	1.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 3.Technol Res Inst HBIS, User Technol Dept, Shijiazhuang 050000, Peoples R China 4.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Wen-Ting,Cui, Jun-Jun,Chen, Zhen-Ye,et al. Correlation of Microstructure Feature with Impact Fracture Behavior in a TMCP Processed High Strength Low Alloy Construction Steel[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2021:10.
APA	Zhu, Wen-Ting,Cui, Jun-Jun,Chen, Zhen-Ye,Zhao, Yang,&Chen, Li-Qing.(2021).Correlation of Microstructure Feature with Impact Fracture Behavior in a TMCP Processed High Strength Low Alloy Construction Steel.ACTA METALLURGICA SINICA-ENGLISH LETTERS,10.
MLA	Zhu, Wen-Ting,et al."Correlation of Microstructure Feature with Impact Fracture Behavior in a TMCP Processed High Strength Low Alloy Construction Steel".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2021):10.