Distribution of elements in Ni-Mo-TiC alloy processed under microgravity conditions

Abstract

Ni-Mo-TiC particle-strengthened alloy was processed through melting-pressing treatment of hot-pressed samples under microgravity environments by sounding rocket flight. The distributions of titanium carbide particles and elements in the alloy sample obtained were analysed using microscopy and micro Auger electron spectroscopy. The objective of this analysis was mainly to clarify the elemental distribution in the titanium carbide particle. Analysis was also carried out on the melting-pressing treated and hot-pressed samples for comparison. Analytical results showed that titanium carbide particles are uniformly distributed by the processing under microgravity and that stable mutual diffusion reaction had progressed there.