TiNi形状記憶合金の回復応力 : 第1報,残留ひずみ一定下での特性

概要

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The recovery stress associated with the martensitic transformation (MT) and the rhombohedral phase transformation(RPT) in TiNi shape memory alloy was investigated experimentally with respect to cyclic heating and cooling under constant residual strain. The results are summarized as follows. ( 1 )The recovery stress in the heating process increases along the reverse transformation lines of RPT and MT. Therefore the recovery stress increases in two stages for the maximum strain in the region of MT. ( 2 ) The stress at high temperature takes an almost constant value for the maximum strain in the region of MT. The recovery stress induced by heating and cooling takes a maximum value for the maximum strain in the region of RPT completion. ( 3 )The recovery stress varies slightly with cycling.
一般社団法人日本機械学会の論文
1994-01-25