Amplitude dependence of the internal friction in a Pb-62% Sn alloy

被引：0
|
作者：
V. M. Arzhavitin
机构：
[1] National Scientific Center,Kharkov Institute of Physics and Technology
来源：
Technical Physics | 2004年 / 49卷
关键词：
Internal Friction; Phenomenological Model; Flexural Vibration; Amplitude Dependence; Superplastic State;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The method of forced flexural vibrations is used to obtain the amplitude dependence of the internal friction (Q−1(ɛ0)) in the Pb-62% Sn alloy, which exhibits superplasticity at room temperature. A phenomenological model of the internal friction, in which the plasticity of alloys is considered as a hybrid relaxation-hysteresis process, is proposed. The numerical values of the cyclic-strain-hardening exponent n of the Pb-62% Sn alloy are determined in the microplastic and superplastic states, and the nature of the experimentally detected asymmetric maximum in Q−1(ɛ0) is discussed.
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页码：707 / 710
页数：3
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