Rupa Dasgupta
CSIR-AMPRI, India
Title: A comparative study of different alloying addition and its variation on the properties affecting shape memory properties of Cu–12.5Al–5Mn alloy
Biography
Biography: Rupa Dasgupta
Abstract
A known shape memory alloy Cu-12.5Al-5Mn has been chosen for the present study and different alloying additions that are expected to affect the shape memory properties added in different quantities from 1 to 3% to the base alloy with intent to study their effectiveness. Such additions and its variation have been found to be very effective in affecting properties affecting shape memory behaviour like martensitic formation and transition temperatures. It has been found that addition of Zn and Ni up to 2% is beneficial but the properties deteriorate when increased to 3%. Adding Mg and Si does not improve properties of the base alloy. Increasing quantity of Fe and Ti results in a steady improvement but Cr has a mixed effect on property improvement. However it is difficult to suggest which alloying element among the seven additions studied would perform the best except to say that the transformation temperatures can be manipulated by choosing a proper alloying addition in a specific amount.