Microstructure of Ni-48 at.%Ti Alloy Prepared from Powder and by Conventional Metallurgy

被引：0
|
作者：
Karlik, M. [1 ,2 ]
Hausild, P. [2 ]
Adamek, J. [2 ]
Drahokoupil, J. [3 ]
Novak, P. [4 ]
Perriere, L. [5 ,6 ]
机构：
[1] Charles Univ Prague, Fac Math & Phys, Dept Phys Mat, Ke Karlovu 5, CR-12116 Prague 2, Czech Republic
[2] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Dept Mat, Trojanova 13, Prague 12000 2, Czech Republic
[3] CAS, Inst Phys, Vvi, Slovance 2, Prague 18221, Czech Republic
[4] Univ Chem & Technol, Dept Met & Corros Engn, Tech 5, Prague 16628 6, Czech Republic
[5] ICMPE, CNRS, UMR 7182, 2-8 Rue Henri Dunant, F-94320 Thiais, France
[6] Univ Paris Est Creteil, 2-8 Rue Henri Dunant, F-94320 Thiais, France
来源：
ACTA PHYSICA POLONICA A | 2018年 / 134卷 / 03期
关键词：
D O I：
10.12693/APhysPolA.134.765
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Microstructure of the samples of the alloy Ni-48 at.%Ti prepared from elemental powders by self-propagating high-temperature synthesis is compared to that of the same alloy cast by conventional vacuum induction melting from bulk metals. Scanning and transmission electron microscopy observations show differences in the phase structure. Besides NiTi matrix, both materials contain also NiTi2, Ni2Ti, Ni3Ti2, Ni3Ti, and Ni4Ti3 phases. Slow furnace cooling after long term annealing at 1000 degrees C leads to the transformation of the Ni4Ti3 phase into the Ni8Ti5 phase in the self-propagating high-temperature synthesis material. In the conventionally cast alloy, the Ni8Ti5 phase was not found.
引用
收藏
页码：765 / 768
页数：4
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