<報文>Ti-51.5at%Ni合金における自発形状変化におよぼす短時間時効および2段時効の影響

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The spontaneous shape changes of Ti-51.5 at% Ni all-round shape memory alloy were measured after the short-time aging and the two-step aging treatments. It is possible to lower the starting temperature of the spontaneous shape change and to increase the amount of the spontaneous shape change simultaneously using the aging methods. The results obtained are as follows. (1) The maximum amount of the spontaneous shape change Δ(γ_0/γ)=0.96 was obtained by constrained aging at 848 K for 300s after constrained aging at 773 K for 28.8ks. (2) The lower starting temperature of the spontaneous shape change, 186 K, was observed by constrained aging at 858 K for 600s after constrained aging at 723 K for 28.8 ks.all-round shape memory alloyspontaneous shape changeaging
東北大学の論文
1988-03-25