Precipitates Formation in Ti-Ni Equiatomic Alloys due to Annealing Heat Treatment

Abstract:

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The use of smart material such as Ti-Ni in actuators application requires an intense mechanical and metallurgical investigation to understand its behavior. This paper studies martensitic transformation using DSC and X-ray diffraction techniques to compare shape memory parameters in Ti-50.2%Ni (A1) and equiatomic Ti-50.0%Ni (A2) Alloys. The as as-received samples were submitted to annealing at 400°C and 500°C for 24 hours then quenched in at 25°C. The influence of heat treatment on martensitic transformations temperatures and the appearance of R-phase were analyzed using DSC and X-ray diffraction.

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Periodical:

Edited by:

Rodinei M. Gomes, Silvio de Barros, Sandro M. Torres, Severino Jackson G. de Lima, Tadeu A. A. Melo, Vicente T. Lopes Buono

Pages:

49-54

DOI:

10.4028/www.scientific.net/MSF.643.49

Citation:

C. A. N. Oliveira et al., "Precipitates Formation in Ti-Ni Equiatomic Alloys due to Annealing Heat Treatment ", Materials Science Forum, Vol. 643, pp. 49-54, 2010

Online since:

March 2010

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$35.00

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