Abstract
Abstract The self-propagating high temperature synthesis (SHS) of titanium and nickel aluminides was investigated. Effect of experimental variables on SHS temperature, burning rate, product composition, and microhardness are discussed. The densities of the products are 70.80% of theoretical values and the microhardness of Ni3Al produced is similar to that of low carbon steel. It is also shown that the SHS process is affected by the reactant ratios. Small reactant particle size and moderate preheating result in high SHS rates. A small addition of boron and a small change in the green density do not significantly affect the process.
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