Effect of Si element on microstructure and mechanical properties of bulk nanocrystalline Fe-Al-Cr, Fe-Al-Mn materials prepared by aluminothermic reaction

	Effect of Si element on microstructure and mechanical properties of bulk nanocrystalline Fe-Al-Cr, Fe-Al-Mn materials prepared by aluminothermic reaction
	Li, Cui-Ling; La, Pei-Qing; Liu, Hui; Wei, Yu-Peng; Bai, Ya-Ping; Lu, Xue-Feng; Chen, Jing-Min
刊名	Fenmo Yejin Cailiao Kexue yu Gongcheng/Materials Science and Engineering of Powder Metallurgy
	2011-12-01
卷号	16 期号:6 页码:892-899
关键词	Aluminum Aluminum metallography Hardness Manganese Materials properties Mechanical properties Microstructure Silicon Transmission electron microscopy X ray diffraction Aluminothermic reactions Average grain size Compressive properties Electron probe Mass fraction Microstructure and mechanical properties Nanocrystallines Optical microscopes Transmission electron microscope Two-materials
ISSN号	16730224
英文摘要	Bulk nanocrystalline Fe-Al-Cr and Fe-Al-Mn materials with and without Si element were prepared by aluminothermic reaction, respectively. Microstructures of the materials were investigated by optical microscope, electron probe microscope X-ray diffraction and transmission electron microscope. The results show that, after adding 5%Si (mass fraction, the same below), the average grain size of two materials have no obvious change; the crystal structure of materials with 15%Mn changed from DO3 to B2, while the materials with 10%Cr had no change; the addition of Si element results in the precipitation of phases containing Cr, Mn element in the materials. Hardness and compressive properties of the materials were also tested, which indicates that, after adding 5%Si element, the hardness of both materials increases sharply, and the plasticity of the materials reduced significantly; the yield strength of the material with 10%Cr dropped from 790 to 642 MPa, while the material with 15%Mn increased from 708 to 808 MPa.
语种	中文
出版者	Central South University, Lushan Nanlu, Changsha, 410043, China
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/111243]
专题	材料科学与工程学院
作者单位	State Key Laboratory of Gansu Advanced Non-ferrous Materials, Lanzhou University of Technology, Lanzhou 730050, China
推荐引用方式 GB/T 7714	Li, Cui-Ling,La, Pei-Qing,Liu, Hui,et al. Effect of Si element on microstructure and mechanical properties of bulk nanocrystalline Fe-Al-Cr, Fe-Al-Mn materials prepared by aluminothermic reaction[J]. Fenmo Yejin Cailiao Kexue yu Gongcheng/Materials Science and Engineering of Powder Metallurgy,2011,16(6):892-899.
APA	Li, Cui-Ling.,La, Pei-Qing.,Liu, Hui.,Wei, Yu-Peng.,Bai, Ya-Ping.,...&Chen, Jing-Min.(2011).Effect of Si element on microstructure and mechanical properties of bulk nanocrystalline Fe-Al-Cr, Fe-Al-Mn materials prepared by aluminothermic reaction.Fenmo Yejin Cailiao Kexue yu Gongcheng/Materials Science and Engineering of Powder Metallurgy,16(6),892-899.
MLA	Li, Cui-Ling,et al."Effect of Si element on microstructure and mechanical properties of bulk nanocrystalline Fe-Al-Cr, Fe-Al-Mn materials prepared by aluminothermic reaction".Fenmo Yejin Cailiao Kexue yu Gongcheng/Materials Science and Engineering of Powder Metallurgy 16.6(2011):892-899.