摘要
Thermal explosion method was used to prepare porous NiTi shape memory alloy. The process ofthermal explosion was investigated. The effect of process parameters on thermal explosion reaction and propertiesof products was analyzed. The results showed heating rate, green density, particle size of initial powderstrongly affected combustion temperature, porosity and compressive strength of final products. Th mechanismof thermal explosion and the microstructure of reacted products were studied by XRD and SEM photographs.The results showed the final products mainly comprised of NiTi, Ti2Ni and TiNi3 phases and theirstrength decreased with the increase of porosity.