摘要
用低频强迫振动模式测量了Ｚｎ２２％Ａｌ合金的动态力学性质（实模量、虚模量和内耗），观察到共析转变时具有典型的一级相变特征的内耗峰及共析转变温度以下的Ａｌ原子沿α／β相界以及α／α晶界扩散的弛豫过程．结合实验结果。
The mechanical properties of Zn 22%Al alloys were measured with the low frequency forced vibration mode. It was observed that a typical transformation internal friction peak was associated with eutectoid decomposition. A relaxation peak in the complex elastic modulus M 2 T curves with an activation energy of 100±1 2 kJ/mol was observed at the low temperature side of the eutectoid decomposition peak. It was deduced that the relaxation process was related to the diffusion process of Al atom along the α/β phase boundary and α/α crystal boundary.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1996年第11期1859-1864,共6页
Acta Physica Sinica
基金
中国科学院固体物理研究所固体缺陷与内耗开放研究实验室
