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https://doi.org/10.15255/KUI.2017.025

The Effect of Heat Treatment on the Microstructure and Mechanical Properties of Cu-Al-Mn Shape Memory Alloy

Stjepan Kožuh ; Sveučilište u Zagrebu Metalurški fakultet, Aleja narodnih heroja 3, 44 103 Sisak, Hrvatska
Mirko Gojić ; Sveučilište u Zagrebu Metalurški fakultet, Aleja narodnih heroja 3, 44 103 Sisak, Hrvatska
Ivana Ivanić ; Sveučilište u Zagrebu Metalurški fakultet, Aleja narodnih heroja 3, 44 103 Sisak, Hrvatska
Tamara Holjevac Grgurić ; Sveučilište u Zagrebu Metalurški fakultet, Aleja narodnih heroja 3, 44 103 Sisak, Hrvatska
Borut Kosec ; Sveučilište u Ljubljani, Prirodoslovnotehnički fakultet, Aškerčeva 12, 1000, Ljubljana, Slovenija
Ivan Anžel ; Sveučilište u Mariboru, Strojarski fakultet, Smetanova 17, 2000, Maribor, Slovenija


Puni tekst: engleski pdf 2.030 Kb

str. 11-17

preuzimanja: 182

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Sažetak

The 8-mm diameter bars of Cu-Al-Mn shape memory alloys were produced by continuous casting technique. The samples were characterised using optical microscopy and scanning electron microscopy along with EDX analysis. The continuous cast alloy revealed some martensitic phase, which, after quenching, led to the microstructure that is completely martensite. Quenching of samples had an effect on several mechanical properties and change in morphology of fracture. After ageing at 200 °C and 300 °C, the tensile strength increased and elongation drastically decreased. Morphology of fracture surface changed from primary ductile to a mixture of intergranular and ductile.


This work is licensed under a Creative Commons Attribution 4.0 International License.

Ključne riječi

shape memory alloys (SMAs), mechanical properties, microstructure, scanning electron microscopy (SEM), quenching, ageing

Hrčak ID:

192626

URI

https://hrcak.srce.hr/192626

Podaci na drugim jezicima: hrvatski

Posjeta: 554 *