<p>Microstructure and mechanical properties of twinning induced plasticity steel prepared by optical floating zone method</p>

doi:10.1016/j.msea.2022.142986

HFCAS OpenIR

	Microstructure and mechanical properties of twinning induced plasticity steel prepared by optical floating zone method
	Wang, Dan 1; Wang, Xingfu2 ; Wang, Wen 3; Wang, Xinfu 1
	2022-04-18
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
通讯作者	Wang, Dan(wangdannwpu@163.com) ; Wang, Xinfu()
摘要	The three twinning induced plasticity (TWIP) steels were directionally solidified (DS) using the optical floating zone (OFZ) method at the withdrawal rates of 7 (DS7), 15 (DS15), and 30 mu m s(-1) (DS30) for the first time. The results showed that the relatively low withdrawal rate of 7 mu m s(-1)& nbsp;was unfavorable to the growth of DS, and the hybrid morphology was observed, which included equiaxed grains, columnar grains, amorphous coarse grains, and a few stray grains. With the increase of withdrawal rate, the volume fraction of columnar grain and dendrite grain increases, and the spacing decreased correspondingly, increasing microhardness and tensile strength. The samples exhibited outstanding plasticity, especially the DS15 had the highest elongation of 96%. This is attributed to the strong TWIP effect with a higher work hardening rate and the strongest ability of uniform plastic deformation at medium to large strains. Compared with the other two samples, the twin structure formed in the DS15 is more homogeneous and prevalent. The interaction between high-density dislocations and increased grain boundaries from the refined columnar grains and dendrites coupled with activated deformation twins, which contributes to the highest work hardening rate in the whole plastic deformation process of DS30.
关键词	TWIP steel Optical floating zone melting Kernel average misorientation Directional solidification Mechanical property
DOI	10.1016/j.msea.2022.142986
关键词[WOS]	TENSILE DEFORMATION-BEHAVIOR ; DIRECTIONAL SOLIDIFICATION ; MICROSTRUCTURAL EVOLUTION ; GRAIN-BOUNDARY ; STACKING-FAULT ; TEMPERATURE ; ALLOY ; COMPOSITES ; CERAMICS ; STRESS
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51701206] ; Natural Science Basic Research Pro-gram of Shaanxi[2019JQ-833] ; Anhui Provincial Natural Science Foundation[1808085QE166] ; Special Scientific Research Project of Shanxi Education Committee[19JQ0974]
项目资助者	National Natural Science Foundation of China ; Natural Science Basic Research Pro-gram of Shaanxi ; Anhui Provincial Natural Science Foundation ; Special Scientific Research Project of Shanxi Education Committee
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000781266800002
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/128528
专题	中国科学院合肥物质科学研究院
通讯作者	Wang, Dan; Wang, Xinfu
作者单位	1.Yanan Univ, Sch Phys & Elect Informat, Yanan 716000, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Anhui, Peoples R China 3.Changzhou Inst Technol, Sch Mech & Vehicle Engn, Changzhou 213032, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Wang, Dan,Wang, Xingfu,Wang, Wen,et al. Microstructure and mechanical properties of twinning induced plasticity steel prepared by optical floating zone method [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2022,840.
APA	Wang, Dan,Wang, Xingfu,Wang, Wen,&Wang, Xinfu.(2022). Microstructure and mechanical properties of twinning induced plasticity steel prepared by optical floating zone method .MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,840.
MLA	Wang, Dan,et al." Microstructure and mechanical properties of twinning induced plasticity steel prepared by optical floating zone method ".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 840(2022).