| Strength, strain capacity and toughness of five dual-phase pipeline steels | |
| Ren, Yi1; Shi, Xian-bo2,3; Yang, Zhen-guo2,3; Shan, Yi-yin2,3; Ye, Wei3; Cai, Gui-xi3; Yang, Ke3 | |
| Corresponding Author | Shi, Xian-bo(xbshi@imr.ac.cn) |
| 2021-01-16 | |
| Source Publication | JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
 |
| ISSN | 1006-706X |
| Pages | 10 |
| Abstract | The effect of microstructures on strength, strain capacity and low temperature toughness of a micro-alloyed pipeline steel was elucidated. Five various dual-phase microstructures, namely, acicular ferrite and a small amount of (around 2 vol.%) polygonal ferrite (AF + PF), polygonal ferrite and bainite (PF + B), polygonal ferrite and martensite/austenite islands (PF + M/A), polygonal ferrite and martensite (PF + M) and elongated polygonal ferrite and martensite (ePF + M), have been studied. Experimental results show that AF + PF microstructure has high yield strength and excellent low temperature toughness, whereas its yield ratio is the highest. Polygonal ferrite-based dual-phase steels, PF + B, PF + M/A and PF + M microstructures show better strain capacity and low temperature toughness. The strain capacity and low temperature toughness of ePF + M microstructure are the worst due to its high strength. The relationship between microstructure, strength, strain capacity and toughness has been established. Based on the results, the optimum microstructure for a better combination of strength, strain capacity and toughness is suggested to be the one having appropriate polygonal ferrite as second phase in an acicular ferrite matrix. |
| Keyword | Pipeline steel Dual-phase microstructure Strength Strain capacity Toughness |
| Funding Organization | National Key Research and Development Program of China ; State Key Laboratory of Metal Material for Marine Equipment and Application Funding ; Doctoral Scientific Research Foundation of Liaoning Province |
| DOI | 10.1007/s42243-020-00522-w |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2017YFB0304901] ; National Key Research and Development Program of China[2018YFC0310302] ; National Key Research and Development Program of China[2018YFC0310304] ; State Key Laboratory of Metal Material for Marine Equipment and Application Funding[SKLMEA-K201901] ; Doctoral Scientific Research Foundation of Liaoning Province[20180540083] |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000608095700002 |
| Publisher | SPRINGER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/158961 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Shi, Xian-bo |
| Affiliation | 1.State Key Lab Met Mat Marine Equipment & Applicat, Anshan 114009, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Liaoning, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Ren, Yi,Shi, Xian-bo,Yang, Zhen-guo,et al. Strength, strain capacity and toughness of five dual-phase pipeline steels[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2021:10. |
| APA | Ren, Yi.,Shi, Xian-bo.,Yang, Zhen-guo.,Shan, Yi-yin.,Ye, Wei.,...&Yang, Ke.(2021).Strength, strain capacity and toughness of five dual-phase pipeline steels.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,10. |
| MLA | Ren, Yi,et al."Strength, strain capacity and toughness of five dual-phase pipeline steels".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL (2021):10. |
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