Amplitude-dependent decrement to modulus defect ratio in breakaway models of dislocation hysteresis
Amplitude-dependent decrement to modulus defect ratio in breakaway models of dislocation hysteresis
复制标题
位错滞后脱离模型中模量缺陷比的幅值相关减量
DOI：
10.1080/01418619608239694
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发表时间：
1996
影响因子：
1.6
通讯作者：
A. B. Lebedev
中科院分区：
文献类型：
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作者：
A. B. Lebedev
在基于Granat-Lucke弦模型的位错滞后理论框架内，分析了振幅相关的衰减量δ h与振幅相关的模量亏损量ΔM/M的比值r。对于该模型的所有变形，得到了两个结论：第一，在一般情况下，r是振幅σ0的函数，但r的值不应超过2;第二，r的振幅无关性是衰减率和模量亏损的指数n相同的幂律的特殊情况：δh = r（ΔM/M）<$γn 0.在这种情况下，r只是n的函数。r和n之间的关系已被导出。对于n l，而l < n < 4。这种分歧的原因进行了讨论。
Abstract The ratio r of the amplitude-dependent decrement δ h to the amplitude-dependent modulus defect ΔM/M has been analysed within the framework of theories of dislocation hysteresis based on the Granat-Lucke string model. For all variations of this model, two conclusions have been made: firstly, in the general case, r is a function of the vibrational amplitude σ0, but the value of r should not exceed two; secondly, the amplitude independence of r is the specific case of a power law with the same exponent n for both the decrement and the modulus defect: δh = r(ΔM/M) ∝ γn 0. In this case, r is a function of n only. A relationship between r and n has been derived. For n l while l < n < 4. The reasons for such disagreement are discussed.
DOI：
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发表时间：
2006
期刊：
Mater. Sci. Eng. A 442
影响因子：
--
作者：
Y. Nishino;S. Deguchi U. Mizutani;N. Ide T. Atsumi Y. Nishino
通讯作者：
N. Ide T. Atsumi Y. Nishino