Abstract
Ni-Al system intermetallic compounds were prepared by reactive sintering and self-propagating high-temperature synthesis (SHS) reaction, and compared with Young’s modulus and other properties. The coating layers of Ni-Al system intermetallic compounds were prepared on spheroidal graphite cast iron substrate by applying reactive sintering.
The results obtained were as follows; (1) Ni3Al intermetallic compounds in more or less the single phase were obtained by using reactive sintering. (2) The void ratios of reactive sintered samples were low compared to SHS samples, and densified structure was obtained. (3) The Young’s modulus of reactive sintered samples was high compared to SHS samples, and the 30MPa material was 231GPa. (4) Coating of Ni-Al system intermetallic compounds on spheroidal graphite cast iron substrate by the reactive sintering method is possible.
