The effect of silver addition on microstructure and thermal properties of the Cu-10%Al-8%Mn shape memory alloy

Authors

  • Dragan Miroslav Manasijevic University of Belgrade, Technical Faculty, Bor, Serbia
  • Ljubiša Balanović University of Belgrade, Technical Faculty, Bor
  • Tamara Holjevac Grgurić University of Zagreb, Faculty of Metallurgy, Sisak
  • Uroš Stamenković University of Belgrade, Technical Faculty, Bor
  • Duško Minić University of Priština, Faculty of Technical Sciences, Kosovska Mitrovica
  • Milena Premović University of Priština, Faculty of Technical Sciences, Kosovska Mitrovica
  • Radiša Todorović Institute of Mining and Metallurgy, Bor
  • Nada Å trbac University of Belgrade, Technical Faculty, Bor
  • Milan Gorgievski University of Belgrade, Technical Faculty, Bor
  • Mirko Gojić University of Zagreb, Faculty of Metallurgy, Sisak
  • Emi Govorčin Bajsić University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb

DOI:

https://doi.org/10.30544/321

Keywords:

Shape memory alloy, Cu-Al-Mn-Ag alloy, Microstructure, Martensitic transformation

Abstract

The influence of Ag addition on microstructure and thermal properties of the Cu-10%Al-8%Mn alloy was investigated in this work. Two alloys with designed compositions Cu-10%Al-8%Mn and Cu-10%Al-8%Mn-4%Ag (in wt.%) were prepared by induction melting of pure metals. Microstructures of the prepared samples were investigated in the as-cast state, after homogenization annealing and after quenching.

The effects of different methods of heat treatment on the microstructure and transformation temperatures of the investigated Cu-10%Al-8%Mn and Cu-10%Al-8%Mn-4%Ag alloys were investigated using SEM-EDS and DSC techniques.

It was determined that after induction melting microstructure of the both investigated alloys are primarily composed of martensite and a small amount of α-phase precipitates.

Fully martensitic structure in both investigated alloys was obtained after direct quenching from the 850 °C into the ice water. Based on the DSC cooling curves it was determined that two-step martensite transformation for the both investigated alloys occur in the temperature interval from about 30 to -40 °C.

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How to Cite

Manasijevic, Dragan Miroslav, Ljubiša Balanović, Tamara Holjevac Grgurić, Uroš Stamenković, Duško Minić, Milena Premović, Radiša Todorović, Nada Å trbac, Milan Gorgievski, Mirko Gojić, and Emi Govorčin Bajsić. 2017. “The Effect of Silver Addition on Microstructure and Thermal Properties of the Cu-10%Al-8%Mn Shape Memory Alloy”. Metallurgical and Materials Engineering 23 (3):255-66. https://doi.org/10.30544/321.

Issue

Vol. 23 No. 3 (2017): Dragana Živković - Memorial Issue

Section

Articles - archived

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