Microstructure and mechanical properties of Ni3Al fabricated by thermal explosion and hot extrusion

doi:10.1016/j.intermet.2009.01.004

CORC > 金属研究所 > 中国科学院金属研究所

	Microstructure and mechanical properties of Ni3Al fabricated by thermal explosion and hot extrusion
	Sheng, L. Y.2; Zhang, W.2; Guo, J. T.2; Wang, Z. S.2; Ovcharenko, V. E.1; Zhou, L. Z.2; Ye, H. Q.2
刊名	INTERMETALLICS
	2009-07-01
卷号	17 期号:7 页码:572-577
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.2009.01.004
通讯作者	Guo, J. T.(jtguo@imr.ac.cn)
英文摘要	The dense Ni3Al with different boron and chromium addition was fabricated by the thermal explosion and hot extrusion (TE/HE) technology. Microstructure examination showed that Ni3Al contained fine grain structure (200 nm to 10 mu m). 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 Al2O3. With the addition of B, beta-NiAl phase and twinned Ni3Al formed, but in the B and Cr doped alloy, Cr rich phase and a spot of Cr7Ni3 particles with stacking faults inside were observed. In addition, dislocations with high density existed in all alloys. The mechanical test showed that the B and Cr addition resulted in significant improvement in mechanical properties, and TE/HE synthesized Ni3Al alloy owned more excellent mechanical properties, compared with the one synthesized by combustion. (C) 2009 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:000265808200015
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/98877]
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
推荐引用方式 GB/T 7714	Sheng, L. Y.,Zhang, W.,Guo, J. T.,et al. Microstructure and mechanical properties of Ni3Al fabricated by thermal explosion and hot extrusion[J]. INTERMETALLICS,2009,17(7):572-577.
APA	Sheng, L. Y..,Zhang, W..,Guo, J. T..,Wang, Z. S..,Ovcharenko, V. E..,...&Ye, H. Q..(2009).Microstructure and mechanical properties of Ni3Al fabricated by thermal explosion and hot extrusion.INTERMETALLICS,17(7),572-577.
MLA	Sheng, L. Y.,et al."Microstructure and mechanical properties of Ni3Al fabricated by thermal explosion and hot extrusion".INTERMETALLICS 17.7(2009):572-577.