刃型位错
- 网络Edge dislocation
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刃型位错降低了应力诱发马氏体形核的激活能,并在相变中起到了塑性协调作用。
Edge dislocation can reduce the activation energy for stress induced martensitic nucleation , and it also plays a role of plastic accommodation in the transformation processes .
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BCC铁中刃型位错与铜沉淀物相互作用的原子尺度模拟
Atomistic Simulation of the Interaction of Edge Dislocation in BCC Iron and Copper Precipitates
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Fe中刃型位错芯的模型建立及电子结构研究
Model Construction and Electronic Structure Investigation of Edge Dislocation Core in Fe
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Fe中刃型位错上扭折及掺杂体系的电子结构
Electronic structure and doping effect of kink in edge dislocation of body-centred cubic iron
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细索两股松松地扭结在一起的轻质绳子Fe中刃型位错上扭折及掺杂体系的电子结构
A light rope made of two loosely twisted strands . Electronic structure and doping effect of kink in edge dislocation of body-centred cubic iron
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研究了快速热退火(RTA)对p型GaN中位错的影响。我们发现RTA对GaN中螺型位错的影响很大,而刃型位错则在RTA下比较稳定。
The relationship between rapid thermal annealing ( RTA ) and the dislocations in p-doped GaN via MOCVD was studied .
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分子动力学模拟研究单个刃型位错对NiAl马氏体相变的影响
Molecular dynamics study on the influence of single edge dislocation on martensitic transformations in NiAl
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本文用密度泛函理论框架下的离散变分方法(DVM)研究了bccFe[100](001)刃型位错体系的电子结构,给出了结合能、原子间相互作用能以及电荷转移信息。
The electronic structure of the bcc Fe ( 001 ) edge dislocation core is investigated using the first principles discrete variational method ( DVM ) .
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透射电镜(TEM)资料显示:金刚石中刃型位错与螺旋位错均有发育,位错缠结十分明显,位错密度分布不均,在位错缠结的带内位错密度明显高于带间。
TEM shows both screw and knife dislocation can be seen and dislocation tangle is very clear ; the dislocation density is uneven distribution : the density in tangle belt is clearly higher than that in the zone between two belts .
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bcc-Fe刃型位错偶极子的动力学过程模拟
Dynamic simulation of edge dislocation dipole in bcc-Fe
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由于[0001]方向的螺型位错的Burgers矢量比刃型位错的Burgers矢量大得多,故可从蚀坑的深浅来判别螺型位错和刃型位错。
Because of the Burgers vector of the screw dislocations in [ 0001 ] direction are much larger than that of the edge dislocations , one can distinguish the screw dislocations from the edge dislocations according to the depth of etch pits .
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刃型位错芯及其畸变区范围
The Core of the Edge Dislocations and Its Vicinal Distorted Region
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刃型位错间交互作用应力场的光弹性模拟显示
Photoelastic Simulation Display of Interaction Stress Field of Edge Dislocations
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刃型位错应力场分量的计算机模拟
Computer simulation for the stress field of edge dislocation
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刃型位错和圆弧形刚性线夹杂的干涉效应
Interaction Between an Edge Dislocation and Circular-arc Rigid Lines
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刃型位错弹性应力场的求解
Solution of the double harmonic equation in the elasticity stress field of edge dislocation
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失配位错为纯刃型位错,可通过滑移面的改变而形成穿透位错;
The misfit dislocations are pure edge dislocation and that can be transformed to threading dislocations via slip .
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刃型位错中多余半原子面边缘的连线,或者螺型位错中错排螺旋的中心轴线。
The line that extends along the end of the extra half-plane of atoms for an edge dislocation , and along the center of the spiral of a screw dislocation .
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包括双材料边缘界面钝裂纹粘弹性断裂螺型位错相容原理;钝裂纹粘弹塑性断裂刃型位错相容原理。
Two problems are considered : The compatible of screw dislocations and visco-elastic fracture of edge interfacial blunt crack in bimaterial ; The compatible of edge dislocations and visco-elastic-plastic fracture of blunt crack .
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贝氏体铁素体&奥氏体高分辨像显示,两相界面不平直,α和γ两相内有系列刃型位错和结构小台阶,两相界面未显示出连续的严格共格关系。
The high-resolution images show that the interface of two phases is not straight and there are a series of edge dislocations and small structure-ledges , and it does not reveal continuous stringent coherent relationship .
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本文介绍用光弹性模型能成功地显示刃型位错间交互作用的应力场,并且可将计算模型编制成相应的程序,利用计算机来求解这个应力场。
In this paper a photoelastic model is described which can display the interacted stress field for edge dislocations visually and successfully , moreover , using a microcomputer the arithmetic procedure can be programmed and the interacted stress field calculated .
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刃型位错与含界面裂纹的夹杂干涉效应表明:当位错接近界面时,裂纹对位错平衡位置有很大的影响;
The influence of crack geometrical dimension and materials elastic constants on edge dislocation force is evaluated and discussed when dislocation is located in matrix . It is shown that the interfacial crack has a significant effect on the equilibrium position of the edge dislocation near circular interface .
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能量学计算发现,存在最优构型,动力学模拟显示不同构型的界面弛豫后,在相界面上都“成对”出现刃型错配位错。
Among the three configurations analyzed , dynamics simulation results show that a pairs of edge misfit dislocations appeared at all the relaxed interfaces .
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失配位错的类型分为刃型失配位错,位错线沿〈100〉方向;磁偶极子模型的无线传感器网络定位方法
One was pure edge misfit dislocations with line directions of 〈 100 〉; Localization of anchor nodes for wireless sensor networks under magnetic dipole model