Effect of annealing on microstructure and mechanical properties of large dimensional bulk nanocrystalline Fe-Al-Cr alloy prepared by aluminothermic reaction

doi:10.1016/j.msea.2013.05.074

	Effect of annealing on microstructure and mechanical properties of large dimensional bulk nanocrystalline Fe-Al-Cr alloy prepared by aluminothermic reaction
	Wang, Hongding; La, Peiqing; Liu, Xuemei; Wei, Yupeng; Shi, Ting
刊名	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
	2013-10-10
卷号	582 页码:1-7
关键词	Nanostructured materials Precipitation Mechanical properties Microstructure Annealing
ISSN号	0921-5093
DOI	10.1016/j.msea.2013.05.074
英文摘要	Microstructure and mechanical properties of large dimension bulk nanocrystalline Fe-Al-Cr alloy after being annealed at 1073 K for 16 h and at 1273 K for 8 h, 16 h, and 24 h were investigated. It was shown that microstructure of the alloy after the annealing consisted of a nanocrystalline phase with a small amount of micron-sized Cr7C3 phase. The crystal structure of the alloy did not change and still kept the disorder bcc structure after annealing. With the increase of annealing temperature and time, average grain size of the nanocrystalline phase increased, and shape of the Cr7C3 phase transformed from needles to particles. The alloy after annealing had more stable deformation capacity and high strength in the compression at room temperature, and yield strength of the alloy after annealing was about triple the time of the Fe3Al based alloy with microcrystalline structure. The strength of alloy decreased after annealing at 1273 K for 24 h. (C) 2013 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[51164022]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000324566100001
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/34615]
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
通讯作者	La, Peiqing
作者单位	Lanzhou Univ Technol, State Key Lab Gansu Adv Nonferrous Met Mat, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Wang, Hongding,La, Peiqing,Liu, Xuemei,et al. Effect of annealing on microstructure and mechanical properties of large dimensional bulk nanocrystalline Fe-Al-Cr alloy prepared by aluminothermic reaction[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2013,582:1-7.
APA	Wang, Hongding,La, Peiqing,Liu, Xuemei,Wei, Yupeng,&Shi, Ting.(2013).Effect of annealing on microstructure and mechanical properties of large dimensional bulk nanocrystalline Fe-Al-Cr alloy prepared by aluminothermic reaction.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,582,1-7.
MLA	Wang, Hongding,et al."Effect of annealing on microstructure and mechanical properties of large dimensional bulk nanocrystalline Fe-Al-Cr alloy prepared by aluminothermic reaction".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 582(2013):1-7.