提供了一般界面上周期位错结构的矩阵方法和计算特殊界面位错结构的简易矢量方法。
A matrix method is provided for calculating the periodic dislocation structures in general interfaces, and a vector method is given for calculating the dislocation structure in special interfaces.
在基体与析出相的界面上存在高密度位错堆积，从而引起基体金属亚结构细化。
High density dislocation pile-up lies in the interface of the matrix and the second phase, which induces the sub-structure fining of the matrix.
结果表明，弱界面有阻碍位错运动、偏转主裂纹扩展方向的作用，可形成分层断口。
The results showed that the weak interface can block the motion of the dislocations and change the propagation direction of the main crack, and result in forming lamella fracture surface.
结果表明，弱界面有阻碍位错运动、转主裂纹扩展方向的作用，可形成分层断口。
The results showed that the weak interface can block the motion of the dislocations and change the propagation direction of the main crack, and result in forming lamella fracture surface.
研究了多晶体材料中螺型位错偶极子和界面裂纹的弹性干涉作用。
The elastic interaction between a screw dislocation dipole and a mode III interface crack is investigated.
第二章基于压电材料的机电耦合关系求解螺型位错、圆形界面裂纹与夹杂之间相互作用的问题。
In the second chapter, the interaction among a screw dislocation, circular interfacial crack and inclusion is solved based on the electromechanical coupling relation of piezoelectric material.
第四章分析压电材料在远端均匀热流场下螺型位错、圆形界面裂纹与夹杂之间相互作用的问题。
In the fourth chapter, the interaction among a screw dislocation, circular interfacial crack and inclusion under remote uniform heat flux is derived.
并讨论了位错力随材料相关参数，非理想界面参数，裂纹和刚性线弧度的变化规律。
The variation of screw dislocation forces for correlative material parameters and different radians of crack or rigid line is discussed particularly.
分析结果表明，界面裂纹和刚性线夹杂对螺型位错与夹杂的干涉作用具有强烈的扰动效应。
As a result, analysis and discussion show that the influence of interfacial crack or rigid line inclusion on the interaction between screw dislocation and inhomogeneity is significant.
在极端情况下界面没有位错时，会发生热弹性相变。
In the extreme case of no dislocations at the interface, thermoelastic transformation will be realized.
阻尼性能提高是由于组织细化、界面增多以及位错增殖所致。
It is because of microstructure refinement, an increase in boundaries and dislocation multiplication.
以裂纹面上的位错函数为未知量将圆柱型界面裂纹问题化成一组奇异积分方程的求解问题。
The problem of a cylindrical interface crack is reduced to a system of singular integral equations with the aid of two unknown dislocation functions at the interface crack surface.
该文研究了螺型位错偶极子和圆形夹杂界面裂纹的弹性干涉作用。
This paper investigates the problem of the elastic interaction between a screw dislocation dipole and a circular interface crack.
研究了压电材料中压电螺型位错和共线界面导电刚性线夹杂的电弹干涉效应。
The problem for the interaction between a uniformly moving screw dislocation and interface rigid lines in two dissimilar anisotropic materials are investigated.
研究了无限大压电基体材料中压电螺型位错与含界面导电刚性线椭圆夹杂的电弹耦合干涉问题。
The electroelastic interaction between a piezoelectric screw dislocation and an elliptical inclusion containing an electrically conductive interfacial rigid line is investigated.
研究了无穷远纵向剪切下圆形弹性夹杂界面裂纹与基体中任意位置螺型位错的相互干涉问题。
The interaction effects between the circular interfacial cracks and the screw dislocation located inside the matrix under longitudinal shear are dealt with.
分析认为，加入RE后合金的阻尼机制主要是位错机制和界面机制。
The main damping mechanism of ZA84 magnesium alloys with RE is the interface damping and the dislocation damping.
同时在界面附近存在着大量位错和孪晶等晶体缺陷。
Also there are a lot of crystal defects, such as dislocations and twins, found near the interface.
最后使用应力场叠加方法分析了位错和界面的耦合效应。
Finally by using superposition methods the combined interaction of dislocations and interfaces is analyzed.
作为理论结果的应用，本文研究了界面附近螺位错的应力场和体力矩场。
The body couple field of the screw dislocation is also investigated in this paper.
指出，孪晶位错是再结晶过程中，孪晶界面迁移的激活台阶。
It is showed that twin dislocation is the activated step of the migration of twin-plane boundary during recrystallization.
指出，孪晶位错是再结晶过程中，孪晶界面迁移的激活台阶。
It is showed that twin dislocation is the activated step of the migration of twin-plane boundary during recrystallization.
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