Microstructures and mechanical properties of cast Nb-Ti-Si-Zr alloys

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	Microstructures and mechanical properties of cast Nb-Ti-Si-Zr alloys
	Y. X. Tian; J. T. Guo; L. Y. Sheng; G. M. Cheng; L. Z. Zhou; L. L. He; H. Q. Ye
	2008
发表期刊	Intermetallics
ISSN	0966-9795
卷号	16 期号:6 页码:807-812
摘要	The effect of Zr addition on the microstructures and mechanical properties of cast Nb-22Ti-16Si-xZr (x = 0-4) alloys was investigated. The results show that the Zr addition leads to coarseness of primary Nbss phase promotes formation and coarseness of Nbss and gamma(Nb)(5)Si-3 lamellar eutectic structure. In addition, the Zr addition increases the hardness of Nbss and (Nb)(3)Si phases. The yield strength at room temperature of the alloys improves with increasing Zr content. The fracture strain reaches a peak value in 3 at.% Zr content, and then drops with the increase of Zr content. The high temperature strength decreases first and reaches a minimal value in 3 at.% Zr content, and then increases again. These variations are attributed to the microstructure and composition changes of the alloys with increasing Zr content. (C) 2008 Elsevier Ltd. All rights reserved.
部门归属	[tian, y. x.; guo, j. t.; sheng, l. y.; zhou, l. z.] chinese acad sci, superalloy div, inst met res, shenyang 110016, peoples r china. [tian, y. x.; cheng, g. m.; he, l. l.; ye, h. q.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china.;guo, jt (reprint author), chinese acad sci, superalloy div, inst met res, shenyang 110016, peoples r china;jtguo@imr.ac.cn
关键词	Silicides Various Mechanical Properties At Ambient temperAture Casting Microstructure Temperature Fracture-toughness Ternary Phase-diagram Tensile Properties Cr Additions Rich Alloys 1773 k Composites Mo Strength (Nb)/Nb5si3
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WOS记录号	WOS:000256991800011
引用统计	被引频次：72[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33106
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. X. Tian,J. T. Guo,L. Y. Sheng,et al. Microstructures and mechanical properties of cast Nb-Ti-Si-Zr alloys[J]. Intermetallics,2008,16(6):807-812.
APA	Y. X. Tian.,J. T. Guo.,L. Y. Sheng.,G. M. Cheng.,L. Z. Zhou.,...&H. Q. Ye.(2008).Microstructures and mechanical properties of cast Nb-Ti-Si-Zr alloys.Intermetallics,16(6),807-812.
MLA	Y. X. Tian,et al."Microstructures and mechanical properties of cast Nb-Ti-Si-Zr alloys".Intermetallics 16.6(2008):807-812.