M<inf>5</inf>C<inf>2</inf> carbides in a high-chromium ferritic/martensitic steel

doi:10.1007/s11661-014-2238-9

	M5C2 carbides in a high-chromium ferritic/martensitic steel
	Shen, Yin Zhong 1; Ji, Bo 1; Zhou, Xiao Ling1,2,3 ; Zhu, Jun 1
	2014
发表期刊	METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE (IF:2.2[JCR-2023],2.6[5-Year])
ISSN	1073-5623
卷号	45 期号:7 页码:2950-2962
发表状态	已发表
DOI	10.1007/s11661-014-2238-9
摘要	The precipitate phases in an 11 pct Cr ferritic/martensitic steel normalized at 1323 K (1050 °C) for 0.5 hour and tempered at 1053 K (780 °C) for 1.5 hours have been investigated. Except for dominant phases, Cr-rich M23C6 carbide and Nb-rich, Ta-Nb-rich, and V-rich MC carbides, needle-like precipitates with a typical size of 70 to 310 and 10 to 30 nm for the length of the long and short axis of the needles, respectively, were also observed on the extraction carbon replica of the steel. The typical metallic element composition of the needle-like precipitates is about 53-82Fe, 14-26Cr, 0.5-18Ta, 1-6W, and 2-5Co in atomic pct. Through energy dispersive X-ray analysis and electron diffraction along with calculations regarding lattice parameter and interplanar spacing, the needle-like precipitates were identified as a Fe-rich M5C2 carbide, which is not known to have been reported previously in high-chromium steels. The M 5C2 carbide has a base-centered monoclinic crystal structure with the approximate lattice parameters a/b/c = 1.142/0.5186/0.5383 nm and β = 104.68 deg. The formation of the Fe-rich M5C 2 carbides in the steel has been discussed. The effect of chromium content in matrix and boron addition on the precipitate phases in ferritic/martensitic steels has also been discussed. © 2014 The Minerals, Metals & Materials Society and ASM International.
收录类别	EI
出版者	Springer Boston
EI入藏号	20142017711514
EI主题词	Carbides ; Chromium ; Lattice constants ; Martensitic steel ; Needles ; Precipitates ; Tantalum ; Tungsten
EI分类号	Chromium, Manganese, Molybdenum, Tantalum, Tungsten, Vanadium and Alloys:543 ; Steel:545.3 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Textile Mills, Machinery and Equipment:819.6 ; Crystal Lattice:933.1.1
原始文献类型	Journal article (JA)
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/2626
专题	物质科学与技术学院物质科学与技术学院_硕士生
作者单位	1.School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai 200240, China 2.ShanghaiTech University, Chinese Academy of Sciences, Shanghai, China 3.Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, China
推荐引用方式 GB/T 7714	Shen, Yin Zhong,Ji, Bo,Zhou, Xiao Ling,et al. M5C2 carbides in a high-chromium ferritic/martensitic steel[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2014,45(7):2950-2962.
APA	Shen, Yin Zhong,Ji, Bo,Zhou, Xiao Ling,&Zhu, Jun.(2014).M5C2 carbides in a high-chromium ferritic/martensitic steel.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,45(7),2950-2962.
MLA	Shen, Yin Zhong,et al."M5C2 carbides in a high-chromium ferritic/martensitic steel".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 45.7(2014):2950-2962.