Naslov
SEM analysis of fracture surface of the CuAlNi shape memory alloy after heat treatment

Autori
Ivanić, Ivana ; Kožuh, Stjepan ; Vračan, Andrej ; Kosec, Borut ; Gojić, Mirko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Book of Proceedings DEMI 2017 / Tanasić, Zorana - Banja Luka : Faculty of Mechanical Engineering University of Banja Luka, 2017, 949-955

ISBN
978-99938-39-73-6

Skup
13th International Conference on Accomplishments in Mechanical and Industrial Engineering

Mjesto i datum
Banja Luka, Bosna i Hercegovina, 26.05.2017. - 27.05.2017

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
shape memory alloys, CuAlNi, heat treatment, fracture analysis, microstructure

Sažetak
CuAlNi shape memory alloys (SMA) belongs to a group of alloys that exhibit shape memory effect which is related to the thermoelastic martensitic transformation. In this paper the influence of heat treatment (quenching and tempering) on fracture surface morphology of the CuAlNi SMA after tensile testing was examined by scanning electron microscope. It is observed a small difference on alloys mechanical properties and surface morphology between casted and quenched (850 °C/60’/WQ) condition. But after tempering at 300 °C/60’/WQ the mechanical properties and surface morphology is drastically changed. In both states (casted and quenched) can be noticed a transgranular type of fracture showing that the small amount of plastic deformation occurred, and along long oriented grains it is observed an intergranular type of fracture. After tempering the CuAlNi sample shows mostly intergranular type of fracture after tensile testing.

Izvorni jezik
Engleski

Znanstvena područja
Metalurgija

POVEZANOST RADA