Open AccessFabrication of Porous NiTi Shape Memory Alloy Objects by Powder Metallurgy for Biomedical Applications
Author(s) -
Nawal Mohammed Dawood,
Abdul-Raheem Kadhum Abid Ali,
Alaa Abdulhasan Atiyah
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/518/3/032056
Subject(s) - nickel titanium , shape memory alloy , materials science , powder metallurgy , metallurgy , alloy , copper , porosity , fabrication , compression test , compression (physics) , microstructure , composite material , medicine , alternative medicine , pathology
This research, studied the effects of compacting pressure (150-450) MPa and Copper additions (2.5, 5, 7.5 and10) wt% on the mechanical properties of NiTi based shape memory alloys prepared by powder metallurgy. Several mechanical tests such as Rockwall macro hardness measurements, compression test and shape memory properties of the prepared alloys were achieved. The results showed that the addition of Copper with (2.5-10) wt. % to NiTi prepared alloy resulted decreasing the hardness relatively with comparison to master alloy without copper also, there is a distinguished increase in SME properties obtained from hardness test for the NiTi alloys with addition of copper. The result showed that the increasing in compacting pressure and Cu additives have an essential effect by improvement the mechanical properties of the prepared alloys.