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Metastable microstructures in rapidly solidified Ni rich TiNi alloys

Nagarajan, R and Ranganathan, S and Aoki, K and Chattopadhyay, K (1997) Metastable microstructures in rapidly solidified Ni rich TiNi alloys. In: Materials Transactions, JIM, 38 (5). pp. 406-412.

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The metastable microstructures in two rapidly solidified Ni rich Ti-Ni alloys are studied. A first report of the presence of a cubic phase with three times the lattice parameter of B2-TiNi in melt spun $Ti_{40}Ni_{60}$ alloy is presented. This phase has precipitated from the massively solidified B2-TiNi. We also report the formation of a faulted structure $(A^9)$, polytypic to $TiNi_3$ along with $TiNi_3$ in melt spun $Ti_{30}Ni_{70}$ alloy. It is argued that this structure is stabilised due to a specific valence electron by atom ratio.

Item Type: Journal Article
Publication: Materials Transactions, JIM
Publisher: Japan Institute of Metals
Additional Information: Copyright of this article belongs to Japan Institute Metals.
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 29 Mar 2007
Last Modified: 15 Apr 2011 10:28
URI: http://eprints.iisc.ac.in/id/eprint/9983

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