Abstract
The temperature memory effect (TME) of a Ti48Ni17Nb35 alloy consisting of B2-TiNi(Nb) and bcc-NbTi with Ti2Ni precipitation was investigated by using differential scanning calorimetry (DSC). Results showed that the TME of the alloy persisted on the second global DSC heating curve. This repeatable TME persisted even after 30 complete thermal cycles from below M f to above A f. With a further 30 incomplete thermal cycles upon heating up to a specific arrested temperature, the TME was enhanced and persisted in the next 32 complete testing cycles. This is different from the previous understanding that TME was a one-time phenomenon.
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