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Properties of thermo-mechanically treated CuZnAl Shape Memory Alloy (CROSBI ID 554473)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Ćorić, Danko ; Franz, Mladen Properties of thermo-mechanically treated CuZnAl Shape Memory Alloy // New Challenges in Heat Treatment and Surface Engineering / Božo Smoljan, Božidar Matijević (ur.). Zagreb: Hrvatsko društvo za toplinsku obradu i inženjerstvo površina, 2009. str. 277-286

Podaci o odgovornosti

Ćorić, Danko ; Franz, Mladen

engleski

Properties of thermo-mechanically treated CuZnAl Shape Memory Alloy

Hot rolling of CuZn27Al4 shape memory alloy results in the forming of defects in austenitic crystals. The defects such as dislocation and deformed boundaries of austenitic grains affect both “ classical” material properties and the specific properties related to shape memory. Rolled and quenched alloy (ausforming treatment) shows hardening proportional to the value of introduced deformation. By increasing the level of true plastic deformation not only the yield stress and tensile strength are increased but also the pseudo yield stress thus making the mechanically induced martensitic transformation more difficult. Besides, the ausforming treatment reduces all the transformation temperatures of the austenitic-martensitic reaction, thus expanding the temperature field of pseudo-elasticity. In spite of the hardening, the thermo-mechanically treated CuZn27Al4 alloy retains the pseudo-elastic shape memory so that favourable combination of strength and transformation behaviour can be achieved by the ausforming treatment, which is required in the majority of applications of these alloys.

ausforming treatment; shape memory; mechanical properties; transformation temperatures

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Podaci o prilogu

277-286.

2009.

objavljeno

Podaci o matičnoj publikaciji

New Challenges in Heat Treatment and Surface Engineering

Božo Smoljan, Božidar Matijević

Zagreb: Hrvatsko društvo za toplinsku obradu i inženjerstvo površina

978-953-96459-9-9

Podaci o skupu

New Challenges in Heat Treatment and Surface Engineering – Conference in Honour of Prof. Božidar Liščić

poster

09.06.2009-12.06.2009

Cavtat, Hrvatska

Povezanost rada

Strojarstvo