Influence of original microstructure on the transformation behavior and mechanical properties of ultra-high-strength TRIP-aided steel

doi:10.1007/s12613-015-1070-6

IMECH-IR > 流固耦合系统力学重点实验室

	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.
发表期刊	INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
	2015-03
卷号	22 期号:3 页码:262-271
ISSN	1674-4799
摘要	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.
关键词	High Strength Steels Transformation-induced Plasticity Phase Transformations Mechanical Properties Original Microstructure Work Hardening
学科领域	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
DOI	10.1007/s12613-015-1070-6
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000350804800007
关键词[WOS]	RETAINED AUSTENITE ; STABILITY ; DIFFRACTION ; DUCTILITY
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
项目资助者	National Natural Science Foundation of China [51271035] ; Beijing Laboratory of Metallic Materials and Processing for Modern Transportation
课题组名称	LMFS冲击与耦合效应(LHO)
论文分区	Q3
引用统计	被引频次：18[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/49922
专题	流固耦合系统力学重点实验室
通讯作者	Zhao, AM (reprint author), Univ Sci & Technol Beijing, Met Engn Res Inst, Beijing 100083, Peoples R China.
推荐引用方式 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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