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 | |
刊名 | Metals and Materials International |
2016-03-01 | |
卷号 | 22期号:2页码:236-242 |
关键词 | Annealing Ferrite High resolution transmission electron microscopy Mechanical properties Metals Microcrystals Microstructure Nanocrystals Pearlite Scanning electron microscopy Steel castings |
ISSN号 | 15989623 |
DOI | 10.1007/s12540-016-5343-z |
英文摘要 | 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. |
WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
语种 | 英语 |
出版者 | Korean Institute of Metals and Materials |
WOS记录号 | WOS:000371651300011 |
内容类型 | 期刊论文 |
源URL | [http://ir.lut.edu.cn/handle/2XXMBERH/151327] |
专题 | 材料科学与工程学院 |
作者单位 | State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China |
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. |
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