Abstract
The rolling reduction of a cast shape memory alloy plate from self-propagating high temperature synthesis (SHS) ingot was investigated. The composition of SHS ingot is Ti-50.8at%Ni. Differential scanning calorimetry (DSC) and tensile test specimens were cast by lost-wax process from SHS ingot. Specimens were cold rolled by rolling machine. The heat treatment conditions were as cast, 400℃-60min, 500℃-60min and 600℃-60min for DSC and tensile test specimens. Transformation temperatures were measured by DSC. Mechanical properties were measured by a tensile test at several temperatures. The effect of rolling reduction was investigated this study. The shape memory characteristics similar to the Ti-Ni bulk material appears by 10% rolling reduction.
