Naslov
Characterization of Cu-based shape memory alloys
(Karakterizacija legura s prisjetljivošću oblika na bazi bakra)

Autori
Holjevac Grgurić, Tamara ; Gojić, Mirko ; Živković, Dragana ; Kostov, Ana ; Kožuh, Stjepan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
XXIV. Hrvatski skup kemičara i kemijskih inženjera 2015 / Ukić, Šime ; Bolanča Tomislav - Zagreb : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI) ; Hrvatsko kemijsko drustvo, 2015

ISBN
978-953-6894-54-3

Skup
XXIV. Hrvatski skup kemičara i kemijskih inženjera

Mjesto i datum
Zagreb, Hrvatska, 21.04.2015. - 24.04.2015

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
Cu alloys ; Shape Memory Alloys ; microstructure
(Cu legure ; legure s prisjetljivošću oblika ; mikrostruktura)

Sažetak
The practical importance of shape memory alloys is based on their properties such as shape memory effect, pseudoelasticity and damping capacity [1]. Such properties are consequence of the thermoelastic martensitic transformation and depend on crystal structures of the phases involved in transition. Cu-based alloys are very attractive for practical application due to their low cost and good shape memory properties [2, 3]. β-phase region, that is dominant for martensitic transformation, is stable for binary Cu-Al alloys in compositions of 20-30 wt.% of aluminium, but it could be broadened by the addition of manganese or some other third element [4, 5]. The addition of Mn to Cu-Al alloys allows obtaining martensitic structure with lower content of aluminium, what means decreased degree of order of β-parent phase that leads to better ductility and elongation of alloy. In this work, the results of microstructure and transition temperatures of as-cast and quenched Cu-16 at.%Al-10at.%Mn were presented. The results of DSC analysis showed martensitic transformation at -20 °C. The influence of different heat-treatment temperatures on the martensitic transformation were discussed.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Metalurgija

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