| Correlation of Microstructure Feature with Impact Fracture Behavior in a TMCP Processed High Strength Low Alloy Construction Steel | |
| Zhu, Wen-Ting1; Cui, Jun-Jun2; Chen, Zhen-Ye1,3; Zhao, Yang4; Chen, Li-Qing1 | |
| Corresponding Author | Cui, Jun-Jun(junjun_cui@163.com) ; Chen, Li-Qing(lqchen@mail.neu.edu.cn) |
| 2021-05-13 | |
| Source Publication | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| ISSN | 1006-7191 |
| Pages | 10 |
| Abstract | 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. |
| Keyword | High strength low alloy steel Thermo-mechanical controlled processing (TMCP) Finish cooling temperature Microstructure Mechanical properties Impact toughness |
| Funding Organization | 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 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000650107400002 |
| Publisher | CHINESE ACAD SCIENCES, INST METAL RESEARCH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/161818 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Cui, Jun-Jun; Chen, Li-Qing |
| Affiliation | 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 |
| Recommended Citation 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. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment