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
	2009
发表期刊	Intermetallics
ISSN	0966-9795
卷号	17 期号:7 页码:572-577
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.
部门归属	[sheng, l. y.; zhang, w.; guo, j. t.; wang, z. s.; zhou, l. z.; ye, h. q.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [ovcharenko, v. e.] russian acad sci, inst strength phys & mat sci, siberian branch, tomsk, russia.;guo, jt (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china;jtguo@imr.ac.cn
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
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32274
专题	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.