查询词典 dislocations

Using the first-principles self-consistent discrete variational method based on density functional theory, we investigated the effect of alloying element Mn on the electronic structure of the kink on the [100](010) edge dislocations in bcc iron. We calculate the structural energy, the interatomic energy, the local density of states and the charge density.

用基于密度泛函理论的自洽离散变分方法研究了合金元素Mn对bcc Fe中[100](010)刃型位错上扭折的电子结构的影响，计算了格位能、原子间相互作用能、电荷密度及态密度等物理参量。

Contusions are common on the head, face, chest, abdomen and pelvis, lacerations on the head and face and dislocations in the upper extremities.

挫伤是常见于头部，面部，胸部，腹部和盆腔，在头面部和上肢混乱撕裂伤。

The best compositions of the polishing solution for the crystal surface and of the etchant for revealing dislocations are given.

确定了所选定的位错侵蚀剂的侵蚀规范；此侵蚀剂对晶面无选择性，能显示出刃型和螺型位错，以及&新&、&旧&位错。

Further analysis of the micro-voids indicate that a lot of dislocations are generated around the voids, and the emission direction is in the {111} planes, which are the closed-packed planes of the face-centered cubic metal.

进一步的观测发现，在孔洞周围出现了大量的位错发射，发射方向位于{111}晶面上，是面心立方金属的密排面。

The results show that the dislocations were nonlinear in space and time, especially in non-homogenous distribution of mechanical parameters on the fault surface.

结果表明，不同的断层力学参数，特别在断层强度非均匀分布的状态下，断层位错运动存在明显的非均匀时、空分布的特征。

After 10h ball milling, the alloy of carbonyl iron and carbonyl nickel began to form, and the sample kept its original bcc and fcc structure; after 100h ball milling, the sample became a solid solution with bcc structure; after 200h ball milling, the diffraction peak of Ni almost disappeared and the isotropic grains with D achieved, which was mainly attributed to the dislocations and disclinations of the nanocrystalline bcc FeNi suffering from severe plastic deformation by ball milling.

球磨10h时，羰基铁和羰基镍开始形成合金，但大部分Fe、Ni原子仍分别以bcc结构和fcc结构存在。球磨100h时，样品以bcc结构的FeNi合金为主，球磨200h后，样品中fcc结构Ni特征峰几乎消失，FeNi纳米晶达到最小粒径的平衡值，~8nm。高能球磨过程中，晶界区域的层错缺陷是合金化和纳米晶形成的重要因素。

The precipitation peak is considered to be associated with the interaction between the dislocations and the hydrides.

沉淀峰的本质可能与位错-氢化物交互作用有关。

The results indicate that the hydrides might preferentially precipitate on the dislocations.

结果表明，氢化物可能择优在位错上沉淀。

The dislocation configuration and the interaction between hydrides and dislocations of N18 Zircaloy after cyclic deformation at room temperature have been investigated,using transmission electron microscopy.

应用透射电子显微镜研究了N18锆合金在室温下循环变形后的位错组态以及氢化物与位错的相互作用。

Although the mode of carbon storage in the mantle is largely unknown, observations of microbubbles on dislocations in minerals from mantle xenoliths has led to the suggestion that carbon may be soluble in silicates at high pressure.

地球地幔中储存的碳的数量要比大气层和生物圈中碳的总量大几个数量级，所以，碳在地幔中的储存模式是全球碳预算中的一个重要问题。

I am sure after a few weeks of adaptation and familiarization I will have no difficulty in functioning on a daily basis in an English speaking society or in participating fully in graduate studies.

在大学的三年的学习生活不仅给予我自身的充实，更重要的是磨练和培养了我较强的自觉能力和严谨，踏实的作风以及不怕困难的精神，对未来充满了信心！

As the first volcanoes erupted, one of the gases that bellowed out was steam.

在第一批火山喷发时，喷出的气体之一就是水蒸汽。