MATEC Web of Conferences
Volume 33, 2015ESOMAT 2015 – 10th European Symposium on Martensitic Transformations
|Number of page(s)||4|
|Published online||07 December 2015|
Structural phase transformations and shape memory effect in ZrCu along with Ni and Hf additions
1 G.V. Kurdyumov Institute for Metal Physics of the National Academy of Sciences of Ukraine, 36 Vernadsky blvd., Kiev 03680, Ukraine
2 MTM Department, Katholieke Universiteit Leuven, Kasteelpark Arenberg 44, B-3001, Leuven (Heverlee), Belgium
3 Institut des Sciences Chimique de Rennes, Université Rennes 1, UMR CNRS 6226, 263 Av. Gal. Leclerc, 35042 Rennes, France
a Corresponding author: email@example.com
Ni replacement of Cu in ZrCu high temperature shape memory alloy results in the increase of the temperatures of the martensitic transformation (MT) . Once the Ni content reaches 20 at.%, the temperatures of MT are becoming higher than the temperature of crystallization of the amorphous alloy with the same composition  and crystallization from the amorphous state in this case takes place through formation of B19` phase without any visible signs of the nanoscale phase separation. In this regard, little is known about the influence of Hf additions onto phase transformations in ZrCu. The present work is dedicated to the study of structure and phase formation upon alloying of ZrCu by Ni and Hf by means of structural and thermal analysis. Their influence onto shape memory behavior will be discussed.
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