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A study of the glass-forming range in the ternary Ti-Ni-Al system by mechanical alloying

Nagarajan, R and Ranganathan, S (1994) A study of the glass-forming range in the ternary Ti-Ni-Al system by mechanical alloying. In: Eighth International Conference on Rapidly Quenched and Metastable Materials, 22-27 Aug. 1993, Sendai, Japan, pp. 168-172.

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Abstract

The glass-forming range (GFR) in ternary Ti-Ni-Al alloys was determined via mechanical alloying using a high energy Spex mill. The GFR was also calculated using Miedema's model. Although the theoretical GFR is quite large, the experiments showed a very limited GFR. The concentration ranges chosen were $Ti_{50}Ni_xAl_{50-x}$ (x=10, 25, 40), $Ti_{60}Ni_yAl_{40-y}$ (y=10, 20, 30), $Ti_{70}Ni_{15}Al_{15}, Ni_2TiAl$ and TiNiAl. Prolonged milling of the amorphous $Ti_{50}Ni_{25}Al_{25}$ powders led to the reappearance of the crystalline peaks. Calorimetric experiments showed an endothermic peak near 600 K in most of the samples

Item Type: Conference Paper
Additional Information: Copyright of this article belongs to Elsevier Sequoia
Keywords: aluminium alloys;mechanical alloying;metallic glasses;nickel alloys;powder metallurgy;thermal analysis;titanium alloys;vitrification
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 08 Oct 2007
Last Modified: 19 Sep 2010 04:38
URI: http://eprints.iisc.ernet.in/id/eprint/11034

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