1) disclination
[diskli'neiʃən]
旋错
1.
On the basis of the 4-dimensional geometric theory of the nonlinear defect continuum,the continuity equations of dislocations and disclinations are derived.
根据非线性缺陷连续统的4维几何理论,导出了位错和旋错的连续性方程。
2.
Experirtiments have shown the strong rotation in plastic deformation, which iscaused by the disclination, specific arrangement of dislocation and inhomogeneityof tlie gliding motion of the defects in the rnicroscopic scale.
这种塑性旋转是由旋错,位错的特殊排列和微观结构上缺陷滑动所产生的非均匀性,本文基于塑性旋转的微观机制,建立了缺陷(位错和旋错)运动所满足的守恒方程。
2) Screw dislocation
螺旋位错
1.
First, {104} plane of calcite crystallite containing screw dislocation is simulated by HyperChem according to growth shape of calcite.
首先,根据方解石晶体生长形貌,通过分子模拟软件生成有螺旋位错的方解石{104}面,同时基于半经验分子轨道理论,对离解后的HEDP结构优化以获得其部分电荷分布。
2.
By observing the {100} faces morphology of DKDP crystal grown in all three dimensions with atom force microscope,screw dislocations were found.
采用原子力显微镜观测全方位生长的DKDP晶体的{100}面形貌,发现有螺旋位错,由此推断DKDP晶体{100}面以螺旋位错机制生长;利用同步辐射X射线白光形貌术观测了DKDP晶体缺陷,探讨了不同生长条件及生长阶段对晶体完整性的影响。
3.
On the crystal surfaces of the beryl crystal at {0001},{1010},{1121} occur universally screw dislocation,constriction screw dislocation,stacking fault,and contact twin that serve as the major step like source for the growth of beryl crystal.
在绿柱石晶体的 { 0 0 0 1}、{ 10 10 }、{ 112 1}面上 ,普遍发育螺旋位错、束合螺旋位错、层错及接触双晶 ,它们共同构成了绿柱石晶体生长的主要台阶源。
3) Stagger spinning
错距旋压
1.
In this pater, the technical parameters affecting the quality of stagger spinning parts of LY12 tube with big--diameter and thin--wall are analyzed.
本文对影响大直径薄壁筒错距旋压件质量的工艺参数进行了分析,运用优化设计理论对主要工艺参数进行了优化计算,用修正的优化计算结果对LY12大直径薄壁筒进行了错距旋压工艺实验,得到了较好的结果。
4) left lateral dislocation
左旋扭错
5) left-lateral slip
左旋错动
6) stepped spinning
错距旋压
1.
In St56-90 CNC precise spinning machine, the thickness of billet thins out from 12mm to 2mm by two-pass stepped spinning.
采用St56—90精密旋压机,经过两道次错距旋压,将毛坯由12mm减薄到2mm,生产规格为Φ356×2×1000的30CrMnSiA大直径薄壁筒形件,尺寸精度得到较大幅度提高,而且与原三轮同平面旋压相比,减少了三道次,省去了旋压过程中半成品的软化退火,简化了工艺流程,降低了生产成本,提高了生产效率。
2.
In this paper,stepped spinning experimental study is carried out.
影响错距旋压零件精度的因素很多,本文通过在St56—90CNC进行薄壁长筒形件试验研究,分析了反旋进给率增大产生缩径的原因,进给率变化对壁厚的影响规律,以及毛坯外端对成形区的约束作用。
补充资料:旋错
见位错。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条