Microstructure and mechanical properties of Ni3Al and Ni3Al-1B alloys fabricated by SHS/HE

doi:10.1016/j.intermet.2010.08.027

CORC > 金属研究所 > 中国科学院金属研究所

	Microstructure and mechanical properties of Ni3Al and Ni3Al-1B alloys fabricated by SHS/HE
	Guo, J. T.2; Sheng, L. Y.2,3,4; Xie, Y.2; Zhang, Z. X.4; Ovcharenko, V. E.1; Ye, H. Q.2
刊名	INTERMETALLICS
	2011-02-01
卷号	19 期号:2 页码:137-142
关键词	Nickel aluminides, based on Ni3Al Mechanical properties at ambient temperature Reaction synthesis Microstructure
ISSN号	0966-9795
DOI	10.1016/j.intermet.2010.08.027
通讯作者	Guo, J. T.(jtguo@imr.ac.cn)
英文摘要	The well-densified Ni3Al alloys without and with boron addition were fabricated by self-propagation high-temperature synthesis and hot extrusion (SHS/HE) technology. Microstructure investigation showed that Ni3Al and Ni3Al-1B alloys contained fine grain structure. Analysis of X-ray spectra as well as transmission electron microscopy studies revealed that three phases present in all alloys: gamma-Ni, Ni3Al and dispersoids of alpha- Al2O3 and gamma- Al2O3. However, beta-NiAl, Ni3B phase and twinned Ni3Al crystal are observed in the Ni3Al-1B alloy. In addition, dislocations with high density exist in all alloys. The mechanical test showed that the B addition leads to obvious improvement in yield strength and compressive ductility, and compared with the ones synthesized by combustion, SHS/HE synthesized Ni3Al and Ni3Al-1B alloys exhibit more excellent mechanical properties. (C) 2010 Elsevier Ltd. All rights reserved.
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000286294500003
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/106411]
专题	金属研究所_中国科学院金属研究所
通讯作者	Guo, J. T.
作者单位	1.Russian Acad Sci, Inst Strength Phys & Mat Sci, Siberian Branch, Tomsk, Russia 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Peking Univ, Beijing 100871, Peoples R China 4.PKU HKUST Shenzhen HongKong Inst, Shenzhen 518057, Peoples R China
推荐引用方式 GB/T 7714	Guo, J. T.,Sheng, L. Y.,Xie, Y.,et al. Microstructure and mechanical properties of Ni3Al and Ni3Al-1B alloys fabricated by SHS/HE[J]. INTERMETALLICS,2011,19(2):137-142.
APA	Guo, J. T.,Sheng, L. Y.,Xie, Y.,Zhang, Z. X.,Ovcharenko, V. E.,&Ye, H. Q..(2011).Microstructure and mechanical properties of Ni3Al and Ni3Al-1B alloys fabricated by SHS/HE.INTERMETALLICS,19(2),137-142.
MLA	Guo, J. T.,et al."Microstructure and mechanical properties of Ni3Al and Ni3Al-1B alloys fabricated by SHS/HE".INTERMETALLICS 19.2(2011):137-142.