Microstructural aspects of precipitation and martensitic transformation in a Ti-rich Ni-Ti alloy
- Univ. of Wisconsin, Milwaukee, WI (United States). Materials Dept.
- Unidad Saltillo (Mexico). Centro de Investigacion y Estudios Avanzados
Near-equiatomic NiTi alloys are among the most important shape memory alloys (SMA) due to their outstanding mechanical properties, corrosion resistance, and biocompatibility. In these alloys, thermal mechanical processing or additions of other elements are often used to modify the martensite-austenite (M-A) transformation temperatures, as well as the alloy strength. Nevertheless, in near-equiatomic Ni-Ti alloys, small deviations from stoichiometry can give rise to significant precipitation of second phases. This in turn affects both the alloy strength and the shape memory effect. Thus, it is the aim of the present work to investigate the metallurgical aspects associated with the precipitation reactions exhibited in a Ti-rich Ni-Ti alloy, as well as the role of thermal aging on the exhibited transformation temperatures.
- OSTI ID:
- 194943
- Journal Information:
- Scripta Materialia, Vol. 34, Issue 4; Other Information: PBD: 15 Feb 1996
- Country of Publication:
- United States
- Language:
- English
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