﻿ 脉冲电流作用下电子风应力模型与计算示例 Electron Wind Stress Model and Calculation Examples under Pulse Current

Vol.06 No.01(2017), Article ID:19823,5 pages
10.12677/CMP.2017.61001

Electron Wind Stress Model and Calculation Examples under Pulse Current

Furong Cao

School of Materials Science and Engineering, Northeastern University, Shenyang Liaoning

Received: Feb. 5th, 2017; accepted: Feb. 24th, 2017; published: Feb. 27th, 2017

ABSTRACT

Electro-plasticity (EP) is an approach to improve the plasticity using electric field and electric pulse current. To disclose the mechanism of EP under the pulse current, a new electron wind stress model was proposed based on Conrad’s electron wind force model. Calculation examples were given in a complex system LAZ922 (Mg-9Li-2Al-2Zn) alloy. It is found through calculation that the electron wind stress based on dislocation kinetics is in good agreement with the practical pulse current stress. However, the electron wind stress based on quantum mechanics is too low and differs greatly from the practical pulse current stress. This is because that the influence of the second phases on the movement of electrons is not considered.

Keywords:Electro-Plasticity, Pulse Current, Electrion Wind Force, Electron Wind Stress

1. 引言

2. 模型

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3. 计算示例

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[12] ，这里为应变速率。

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4. 讨论

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5. 结论

Electron Wind Stress Model and Calculation Examples under Pulse Current[J]. 凝聚态物理学进展, 2017, 06(01): 1-5. http://dx.doi.org/10.12677/CMP.2017.61001

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