By a dislocation loop we understand a dislocation whose dislocation line is closed inside the crystal. The dislocation loops are usually formed in special crystallographic planes and …

A dislocation dipole has two dislocations of opposite sign that are on different slip planes separated by an atomic scale distance. The diagram shows a dipole (MO and NP) generated …

研究了一个螺型位错偶极子和一条表面裂纹的交互作用，计算了裂纹尖端 应力强度因子 以及作用在偶极子中心的像力和像力偶矩等重要的物理量。 位错偶极子是 晶体材料 中常见的微观缺 …

2021年10月1日 · The edge dislocation dipole (EDD) as a special structure of complex dislocations, widely exists in plastic deformation of metallic materials. Through simulated …

Section #3 introduces the Dislocation class that provides a convenient means of constructing atomic configurations of dislocations. Section #4 shows how the Dislocation class can be used …

2018年1月15日 · Narrow dislocation dipoles in intermetallic TiAl are systematically investigated by atomic-scale simulations and electron microscopy. The formation energy of narrow dipolar …

2021年4月10日 · In this work, super-dislocation dipoles in γ-TiAl and α 2 -Ti 3 Al were systematically investigated by atomistic simulations, with a variety of dipole heights, …

In this review, first, the history of dislocation dipole annihilation is revisited. Then, recent progresses in elucidating the atomic-scale processes during dipole annihilation are presented …

2017年7月4日 · In this work, we investigated interaction of non-coplanar dislocation dipoles that mimic general cases of dislocations in a confined volume (precipitate or lamina), where …

2006年8月20日 · This paper discusses the formation of dislocation dipoles by the interaction of two dislocations. In particular a mechanism is described whereby two screw dislocations of the …