拡散接合におけるボイド生成およびその抑制に関するモンテカルロシミュレーション

抄録

We have studied the Kirkendall void formation in the diffusion bond between molybdenum and titanium by using the Monte Carlo method. When the ordering energy between vanadium and vacancy was a negative value, the addition of five atomic percent of vanadium to titanium suppressed the void formation for the diffusion bonds having a tendency to form the voids. On the other hand, a positive value of the ordering energy did not show any effects on suppressing the void formation. We found that the negative value of ordering energy generated the vanadium and vacancy complexes, and consequently prevented the void formation.