Effect of annealing temperature on the microstructure and tensile properties of a bimodal nano/micro grained 1020 carbon steel prepared by aluminothermic reaction casting

doi:10.1007/s12540-016-5343-z

	Effect of annealing temperature on the microstructure and tensile properties of a bimodal nano/micro grained 1020 carbon steel prepared by aluminothermic reaction casting
	La, Peiqing; Guo, Xin; Wang, Hongding; Shi, Ting; Zhen, Xiaojuan; Wei, Fuan; Lu, Xuefeng
	2016-03-01
发表期刊	Metals and Materials International
ISSN	15989623
卷号	22 期号:2 页码:236-242
摘要	Bulk 1020 carbon steel was prepared by aluminothermic reaction casting. After casting, isothermal aging treatments at different temperatures are performed for different periods up to 8 h. Microstructure characterization was performed using many methods, including optical microscopy, X-ray diffraction, scanning electron microscopy and transmission electron microscopy. It was found that the steel consisted of a nanocrystalline- ferrite matrix and a microcrystalline pearlite phase with a laminar structure. The average grain sizes of the ferrite were 23, 24, 28, and 37 nm for the cast steel and for samples annealed at 600, 800, and 1000 °C, respectively. As the annealing temperature increased, the volume fraction of the pearlite initially increased and then decreased, while the laminar spacing of pearlite increased from 240 to 900 nm. When annealed at 1000 °C, a spherical black micron pearlite particle was formed. The tensile and yield strength dramatically decreased, and the elongation varied slightly with the annealing temperature. A ductile phase was achieved by extending the holding time. © 2016, The Korean Institute of Metals and Materials and Springer Science+Business Media Dordrecht.
关键词	Annealing Ferrite High resolution transmission electron microscopy Mechanical properties Metals Microcrystals Microstructure Nanocrystals Pearlite Scanning electron microscopy Steel castings
DOI	10.1007/s12540-016-5343-z
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000371651300011
出版者	Korean Institute of Metals and Materials
EI入藏号	20214611168129
EI主题词	Carbon steel
EI分类号	531.2 Metallography ; 537.1 Heat Treatment Processes ; 545.3 Steel ; 741.3 Optical Devices and Systems ; 933.1 Crystalline Solids ; 951 Materials Science
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	https://ir.lut.edu.cn/handle/2XXMBERH/151327
专题	材料科学与工程学院
通讯作者	La, Peiqing
作者单位	Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
第一作者单位	省部共建有色金属先进加工与再利用国家重点实验室
通讯作者单位	省部共建有色金属先进加工与再利用国家重点实验室
第一作者的第一单位	省部共建有色金属先进加工与再利用国家重点实验室
推荐引用方式 GB/T 7714	La, Peiqing,Guo, Xin,Wang, Hongding,et al. Effect of annealing temperature on the microstructure and tensile properties of a bimodal nano/micro grained 1020 carbon steel prepared by aluminothermic reaction casting[J]. Metals and Materials International,2016,22(2):236-242.
APA	La, Peiqing.,Guo, Xin.,Wang, Hongding.,Shi, Ting.,Zhen, Xiaojuan.,...&Lu, Xuefeng.(2016).Effect of annealing temperature on the microstructure and tensile properties of a bimodal nano/micro grained 1020 carbon steel prepared by aluminothermic reaction casting.Metals and Materials International,22(2),236-242.
MLA	La, Peiqing,et al."Effect of annealing temperature on the microstructure and tensile properties of a bimodal nano/micro grained 1020 carbon steel prepared by aluminothermic reaction casting".Metals and Materials International 22.2(2016):236-242.