| Influence of original microstructure on the transformation behavior and mechanical properties of ultra-high-strength TRIP-aided steel | |
Yin HX; Zhao AM; Zhao ZZ; Li X ; Li SJ; Hu HJ; Xia WG(夏伟光); Zhao, AM (reprint author), Univ Sci & Technol Beijing, Met Engn Res Inst, Beijing 100083, Peoples R China.
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| Source Publication | INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
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| 2015-03 | |
| Volume | 22Issue:3Pages:262-271 |
| ISSN | 1674-4799 |
| Abstract | The transformation behavior and tensile properties of an ultra-high-strength transformation-induced plasticity (TRIP) steel (0.2C-2.0Si-1.8Mn) were investigated by different heat treatments for automobile applications. The results show that F-TRIP steel, a traditional TRIP steel containing as-cold-rolled ferrite and pearlite as the original microstructure, consists of equiaxed grains of intercritical ferrite surrounded by discrete particles of M/RA and B. In contrast, M-TRIP steel, a modified TRIP-aided steel with martensite as the original microstructure, containing full martensite as the original microstructure is comprised of lath-shaped grains of ferrite separated by lath-shaped martensite/retained austenite and bainite. Most of the austenite in F-TRIP steel is granular, while the austenite in M-TRIP steel is lath-shaped. The volume fraction of the retained austenite as well as its carbon content is lower in F-TRIP steel than in M-TRIP steel, and austenite grains in M-TRIP steel are much finer than those in F-TRIP steel. Therefore, M-TRIP steel was concluded to have a higher austenite stability, resulting in a lower transformation rate and consequently contributing to a higher elongation compared to F-TRIP steel. Work hardening behavior is also discussed for both types of steel. |
| Keyword | High Strength Steels Transformation-induced Plasticity Phase Transformations Mechanical Properties Original Microstructure Work Hardening |
| Subject Area | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing |
| DOI | 10.1007/s12613-015-1070-6 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000350804800007 |
| WOS Keyword | RETAINED AUSTENITE ; STABILITY ; DIFFRACTION ; DUCTILITY |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing |
| Funding Organization | National Natural Science Foundation of China [51271035] ; Beijing Laboratory of Metallic Materials and Processing for Modern Transportation |
| Department | LMFS冲击与耦合效应(LHO) |
| Classification | Q3 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/49922 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | Zhao, AM (reprint author), Univ Sci & Technol Beijing, Met Engn Res Inst, Beijing 100083, Peoples R China. |
| Recommended Citation GB/T 7714 | Yin HX,Zhao AM,Zhao ZZ,et al. Influence of original microstructure on the transformation behavior and mechanical properties of ultra-high-strength TRIP-aided steel[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2015,22,3,:262-271. |
| APA | Yin HX.,Zhao AM.,Zhao ZZ.,Li X.,Li SJ.,...&Zhao, AM .(2015).Influence of original microstructure on the transformation behavior and mechanical properties of ultra-high-strength TRIP-aided steel.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,22(3),262-271. |
| MLA | Yin HX,et al."Influence of original microstructure on the transformation behavior and mechanical properties of ultra-high-strength TRIP-aided steel".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 22.3(2015):262-271. |
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