Microstructure and mechanical properties of a large-dimensional bulk nanocrystalline-based Fe-Al-Cr alloy prepared by an aluminothermic reaction casting and followed annealing at 1000 °c

doi:10.1080/14786435.2013.765988

	Microstructure and mechanical properties of a large-dimensional bulk nanocrystalline-based Fe-Al-Cr alloy prepared by an aluminothermic reaction casting and followed annealing at 1000 °c
	La, Peiqing 1; Wang, Hongding 1; Liu, Xuemei 1; Wei, Yupeng 1; Jiao, Huisheng 2
刊名	Philosophical Magazine
	2013-06-01
卷号	93 期号:17 页码:2207-2218
关键词	Aluminum alloys Aluminum metallography Annealing Compressive strength Electrons Iron alloys Magnetic susceptibility Magnetization Microstructure Nanocrystalline alloys Nanocrystals Scanning electron microscopy Ternary alloys Transmission electron microscopy Aluminothermic reactions Compressive properties Cr alloys Electron back-scattered diffraction Microstructure and mechanical properties Nanocrystallines Specific magnetic susceptibility Vibrating sample magnetometer
ISSN号	14786435
DOI	10.1080/14786435.2013.765988
英文摘要	A large-dimensional bulk nanocrystalline phase-based Fe-Al-Cr alloy with 10 wt.% Cr, which was about 200 mm in diameter and 10 mm in thickness, was prepared by an aluminothermic reaction casting and followed annealing at 1000 °C. Microstructures of the alloy were investigated by optical microscope, electron probe microscope, scanning electron microscope attached with electron backscattered diffraction, X-ray diffraction and transmission electron microscope. The magnetization curves of the alloy were tested by Lake Shore 7410 vibrating sample magnetometer. Compressive properties of the alloy were tested. The results show the alloy was consisted of a Fe-Al-Cr nanocrystalline matrix, Cr7C3 phase and contaminants in micrometre. Average grain size of the nanocrystalline matrix was 19 nm. Volume fraction of the Cr 7C3 phase in the alloy was about 4.5%. After annealing, the saturated intensity of magnetization and the specific magnetic susceptibility of the alloy increased slightly from 99 emu/g and 0.083 emu/g Oe to 104 emu/g and 0.113 emu/g Oe, respectively. Compressive strength of the alloy was 1200 MPa and much higher than that of the small-scale nanocrystalline alloy and alloy with grains in micrometre. © 2013 Copyright Taylor and Francis Group, LLC.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
语种	英语
出版者	Taylor and Francis Ltd.
WOS记录号	WOS:000320575800009
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113430]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou, 730050, China; 2.Shanghai Office, Oxford Instruments Plc, Shanghai, 201102, China
推荐引用方式 GB/T 7714	La, Peiqing,Wang, Hongding,Liu, Xuemei,et al. Microstructure and mechanical properties of a large-dimensional bulk nanocrystalline-based Fe-Al-Cr alloy prepared by an aluminothermic reaction casting and followed annealing at 1000 °c[J]. Philosophical Magazine,2013,93(17):2207-2218.
APA	La, Peiqing,Wang, Hongding,Liu, Xuemei,Wei, Yupeng,&Jiao, Huisheng.(2013).Microstructure and mechanical properties of a large-dimensional bulk nanocrystalline-based Fe-Al-Cr alloy prepared by an aluminothermic reaction casting and followed annealing at 1000 °c.Philosophical Magazine,93(17),2207-2218.
MLA	La, Peiqing,et al."Microstructure and mechanical properties of a large-dimensional bulk nanocrystalline-based Fe-Al-Cr alloy prepared by an aluminothermic reaction casting and followed annealing at 1000 °c".Philosophical Magazine 93.17(2013):2207-2218.