摘要
采用不完全相变内耗测量法,在Cu-Al-Ni-Mn-Ti合金马氏体相变中获得双内耗峰,即低温内耗峰和高温内耗峰.低温内耗峰位置对应于相对动力学模量的最小值,因此可以认为这个峰起因于模量软化效应;低温内耗峰的最大值与变温速率间呈现出很强的非线性关系,并随着变温速率增大逐渐趋于稳定,说明它的形成与时间有关.
Two internal friction（IF） peaks were obtained in martensitic transformation of Cu-Al-Ni-Mn-Ti alloy through partial phase transition method, which were the low-temperature IF peak and the hightemperature IF peak. The low-temperature IF peak corresponded to the minimum of relative dynamic modulus, so it arose from the soft mode effect. The maximum of the low-temperature IF peak had great non-linear correspondence with the ratio of temperature rate, and trended to be stable with the ratio of temperature rate＇s increasing, which all suggested that the formation of the low-temperature IF peak corresponded to time.
出处
《安徽大学学报（自然科学版）》
CAS
北大核心
2008年第6期56-59,共4页
Journal of Anhui University(Natural Science Edition)
基金
安徽省自然科学基金资助项目(070414202)
安徽省教育厅青年教师基金资助项目(2007jqL104)
关键词
热弹性马氏体
内耗
低温内耗峰
thermoelastic martensite
internal friction
the low- temperature IF peak
