锌铝共析合金中黏弹性-滞弹性转变的内耗研究  

Study of viscoelasticity-anelasticity transition in the Zn-Al eutectoid alloy by measuring the internal friction

作　　者：魏健宁[1] 杜大明[1] 胡孔刚[1] 程和法[2] 水嘉鹏[3] 

机构地区：[1]九江学院材料科学与工程学院,江西九江332005 [2]合肥工业大学材料科学与工程学院,安徽合肥230009 [3]中国科学院固体物理研究所,安徽合肥230031

出　　处：《合肥工业大学学报（自然科学版）》2006年第2期155-157,共3页Journal of Hefei University of Technology：Natural Science

基　　金：江西省教育厅基金资助项目(13-3-B-04)

摘　　要：文章通过内耗的测量研究了锌铝共析合金中黏弹性-滞弹性的转变;采用阶梯变温的方法研究了锌铝共析合金的内耗-频率谱;运用不同的力学模型对实验现象进行了理论解释;随着测量温度的不同,材料的内耗表现出不同的频率依赖性。研究表明,当内耗测量频率趋于零时,-60℃为材料黏弹性-滞弹性的转变点。The viscoelasticity-anelasticity transition in the Zn-Al eutectoid alloy is investigated by measuring the internal friction（IF）. The IF of the Zn-Al eutectoid alloy was measured using a multifunction internal friction apparatus（MFIFA） at low frequencies in a temperature range of -100450 ℃ as the temperature changed step by step. In the IF-frequency spectrum, the IF shows different frequency dependence as the temperature changed. These phenomena are interpreted by different mechanical models. It is found that at the temperature -60 ℃,the Zn-AI eutectoid alloy achieves viscoelasticity anelasticity transition when the measuring frequency is close to zero.

关 键 词：内耗 锌铝共析合金 黏弹性 滞弹性 

分 类 号：TB331[一般工业技术—材料科学与工程]