Influence of tin on the structure and properties of as-cast Ti-rich Ti-Si alloys

被引:36
作者
Bulanova, M [1 ]
Tretyachenko, L [1 ]
Meleshevich, K [1 ]
Saltykov, V [1 ]
Vereshchaka, V [1 ]
Galadzhyj, O [1 ]
Kulak, L [1 ]
Firstov, S [1 ]
机构
[1] IN Frantsevich Inst Problems Mat Sci, UA-03142 Kiev, Ukraine
关键词
transition metal alloys; crystal structure; phase diagram; metallography; X-ray diffraction;
D O I
10.1016/S0925-8388(02)00971-4
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
By the methods of DTA, X-ray diffraction, metallography and microprobe analysis, phase equilibria in the Ti-comer (more than 50 at.% Ti) of the Ti-Si-Sn system were studied. The solidus projection and the melting diagram (solidus+liquidus) were constructed. A new ternary compound T of composition Ti5Si1.2-1.6Sn1.8-1.4 was found to form with the crystal structure of W5Si3-type. The ternary eutectic equilibrium L<---->(beta-Ti)+(Ti5Si3)+(Ti3Sn) was established to occur at 1460 degreesC with the composition of the invariant point E at similar to77Ti-9Si-14Sn. Microhardness measurements were carried out for the primary grains of the alloys with 5 at.% Si. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:164 / 173
页数:10
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