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前文[1,2]报导了Ni-Ti合金在相继热循环过程中的低频内耗及电阻随温度的变化,电阻测量的结果完全证实所测得的内耗蜂与这个合金的马氏体相变和子马氏体相变相对应。Hasiguti[3]曾指出,用低频扭摆测量马氏体查变内牦时,出现扭摆零点漂移现象,他测量了零点漂移在一次温度循环中的变化,指出这种零点漂移是可回复的,因为马氏体相变时所产生的应变是非位错的。因此,研究零点漂移和相变的相关性是很有意义的。最近杨国平和黄
The previous article [1,2] reported the low frequency internal resistance and temperature dependence of resistance of Ni-Ti alloys in successive thermal cycles. The results of the resistance measurements fully confirm that the measured internal friction bee and the martensitic transformation of this alloy Martensitic phase transformation corresponding. Hasiguti [3] pointed out that when using the low-frequency torsion to measure the internal strain of martensite, zero drift appears. He measured the change of the zero drift in a temperature cycle, and pointed out that this zero drift is recoverable because The strain generated during martensitic transformation is non-dislocated. Therefore, it is significant to study the correlation between zero drift and phase transition. Recently, Yang Guoping and Huang