Microstructures and Tensile Properties of 9Cr-F/M Steel at Elevated Temperatures

doi:10.3390/ma15031248

	Microstructures and Tensile Properties of 9Cr-F/M Steel at Elevated Temperatures
	Zhang, Guangjie 5,6; Zhang, Qinggang 4,6; Yang, Junfeng 3,6; Xie, Zhuoming 6; Zhang, Linchao 6; Liu, Rui 6; Li, Gang 2; Wang, Hui 1; Fang, Qianfeng 6; Wang, Xianping 6
刊名	MATERIALS
	2022-02-01
卷号	15
关键词	ferrite-martensite steel precipitates tensile properties microstructure
DOI	10.3390/ma15031248
通讯作者	Yang, Junfeng(jfyang@issp.ac.cn) ; Wang, Xianping(xpwang@issp.ac.cn)
英文摘要	Tensile properties and microstructure changes under different stress states of tempered 9Cr-F/M steel were characterized using a transmission electron microscope (TEM), electron backscatter diffraction (EBSD), scanning electron microscopy (SEM), Vickers hardness tester, and tensile tester. This tempered steel has a typical lath martensite structure with only a few polygonal ferrites embedded, and M23C6 and MX phases nucleated on the lath boundaries or within the sub-grains. At elevated temperatures, the strength of the steel decreases. However, the elongation at 400 degrees C is lower than that at room temperature. For the necking zone, tensile deformation made the grain elongated to the direction of applied stress and thus the grain's cross-section becomes smaller. For samples with rectangular working area cross-section, the deformation in the TD direction was more severe than that in the ND direction, which made the grain elongated in the TD direction. These results can provide some guidance for composition optimization of the 9Cr-F/M steel and facilitate a better understanding of the fracture mechanism under different stress states.
资助项目	National Natural Science Foundation of China[U196720001] ; National Natural Science Foundation of China[51502300] ; National Key Research and Development Program of China[2017YFA0402800] ; fund of Science and Technology on Reactor Fuel and Materials Laboratory[6142A06200310]
WOS关键词	X-RAY-DIFFRACTION ; MECHANICAL-PROPERTIES ; OXIDATION BEHAVIOR ; MARTENSITIC STEEL ; SILICON ; EVOLUTION ; IRRADIATION ; ENERGY
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
语种	英语
出版者	MDPI
WOS记录号	WOS:000759887400001
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China ; fund of Science and Technology on Reactor Fuel and Materials Laboratory
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/127847]
专题	中国科学院合肥物质科学研究院
通讯作者	Yang, Junfeng; Wang, Xianping
作者单位	1.Chengdu Univ, Inst Adv Study, Interdisciplinary Mat Res Ctr, Chengdu 610106, Peoples R China 2.Nucl Power Inst China, Sci & Technol Reactor Fuel & Mat Lab, Chengdu 610041, Peoples R China 3.Anhui Inst Innovat Ind Technol, Luan Branch, Luan 237100, Peoples R China 4.Anhui Univ, Inst Phys Sci & Informat Technol, Hefei 230601, Peoples R China 5.Univ Sci & Technol China, Grad Sch, Scinece Isl Branch, Hefei 230026, Peoples R China 6.Chinese Acad Sci, Key Lab Mat Phys, Inst Solid State Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Guangjie,Zhang, Qinggang,Yang, Junfeng,et al. Microstructures and Tensile Properties of 9Cr-F/M Steel at Elevated Temperatures[J]. MATERIALS,2022,15.
APA	Zhang, Guangjie.,Zhang, Qinggang.,Yang, Junfeng.,Xie, Zhuoming.,Zhang, Linchao.,...&Wang, Xianping.(2022).Microstructures and Tensile Properties of 9Cr-F/M Steel at Elevated Temperatures.MATERIALS,15.
MLA	Zhang, Guangjie,et al."Microstructures and Tensile Properties of 9Cr-F/M Steel at Elevated Temperatures".MATERIALS 15(2022).