Microstructure and mechanical properties of Ni(3)Al fabricated by thermal explosion and hot extrusion

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	Microstructure and mechanical properties of Ni(3)Al fabricated by thermal explosion and hot extrusion
	L. Y. Sheng ; W. Zhang ; J. T. Guo ; Z. S. Wang ; V. E. Ovcharenko ; L. Z. Zhou ; H. Q. Ye
刊名	Intermetallics
	2009
卷号	17 期号:7 页码:572-577
关键词	Nickel aluminides based on Ni(3)Al Mechanical properties at ambient temperature Reaction synthesis Microstructure combustion synthesis nickel aluminides iron aluminides boron intermetallics shs ductility
ISSN号	0966-9795
中文摘要	The dense Ni(3)Al with different boron and chromium addition was fabricated by the thermal explosion and hot extrusion (TE/HE) technology. Microstructure examination showed that Ni(3)Al 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, Ni(3)Al and dispersoids of Al(2)O(3). With the addition of B, beta-NiAl phase and twinned Ni(3)Al formed, but in the B and Cr doped alloy, Cr rich phase and a spot of Cr(7)Ni(3) 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 Ni(3)Al alloy owned more excellent mechanical properties, compared with the one synthesized by combustion. (C) 2009 Elsevier Ltd. All rights reserved.
原文出处	://WOS:000265808200015
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/32274]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	L. Y. Sheng,W. Zhang,J. T. Guo,et al. Microstructure and mechanical properties of Ni(3)Al fabricated by thermal explosion and hot extrusion[J]. Intermetallics,2009,17(7):572-577.
APA	L. Y. Sheng.,W. Zhang.,J. T. Guo.,Z. S. Wang.,V. E. Ovcharenko.,...&H. Q. Ye.(2009).Microstructure and mechanical properties of Ni(3)Al fabricated by thermal explosion and hot extrusion.Intermetallics,17(7),572-577.
MLA	L. Y. Sheng,et al."Microstructure and mechanical properties of Ni(3)Al fabricated by thermal explosion and hot extrusion".Intermetallics 17.7(2009):572-577.