Ti基およびZr基ろう材で抵抗ろう接したTi-10mass%Zr合金継手の引張強さ

概要

論文の詳細を見る
Ti -10mass%Zr alloy was resistance-brazed with Ti or Zr based fi1ler meta1 by subjecting to water or gas cooling. The tensile strengh of the joints was investigated in connection with the brazed microstructures.The brazed microstructures are categorized into two types according to the sizes of β-Ti and intermetallic compounds, The brazed microsteucture categorized as Type I exhibits that the fine βーTi and the intermetallic compounds surrounded by amorphous phase are dispersed within the filler metal region， whi1e the brazed microstructure categorized as Type II exhibits that the large β-Ti and the intermetallic compounds are localized within the fi1ler metal region. The joints with Type I brazed microstructure have the tensile strength of about 600MPa，the value of which is one and a half times as 1arge as that of the joints with Type II brazed microstrcture. The increase in tensiles strength of the joints with Type I brazed microstructure is attributed to homogeneous plastic deformation resulting from the characteristic of their brazed microstructure.