晶界滑移 meaning in Chinese
grain boundary glide
grain boundary sliding
grain boundary slip
Examples
- To explain the inverse hall - petch relation in nanocrystalline metals , a geometric model is made , which assumes that the grains are spherical crystals , and the thick of grain boundary is considerable compared with the microcrystalline metals
提出了一个球形晶体纯晶界滑移几何模型，得到出现反hall - petch关系的条件和小晶粒尺寸条件纳米晶金属材料的强度极限。 - The substructure near the damage position was studied by ebsp , then vonbined with the relationship among substructure grain boundary sliding grain size and material deformation compatibility the mechanics of creep damage was discussed
使用电子背散射衍射技术研究了不同损伤位置附近的亚结构形成情况，结合亚结构、晶界滑移、晶粒尺寸与材料变形协调性等材料变形特点，对蠕变损伤机理进行了探讨。 - The presence of small amount of liquid at grain boundaries tends to form thin viscous layer which surrounds the finer grains . intergranular fracture may occur at the grain boundaries between two fine grains not covered by viscous phases . the high ductility achieved at low strain rates is generally attributed to dislocation glide - creep accommodation mechanisms
原始晶界上产生少量液相，形成薄的固液共存粘性层并包围细化的晶粒，沿晶断裂主要发生在无粘性层的细晶粒间；而在较低应变速率下，三叉晶界位错攀援?蠕变协调机制松弛晶界滑移产生的应力集中，晶界上产生较多液相，有利于晶界滑移进行。 - The apparent activation volume calculated by the model is about 2500a3 , which was ten times larger than that of usual amorphous alloy and was at the same range of the amorphous polymer . the model shows the main deformation mechanism of nanocrystalline ag is grain boundary sliding , which in some extent declares the similar forms of equation with amorphous alloys . with the ananlysis to the hrem of nanocrystalline ag , the discrepancy of the apparent activation volume between the nanocrystalline ag and amorphous alloys is interpreted by the loss of atoms participating in grain boundary sliding without enough reconstruction by the movement of atoms under the low temperature
运用晶界滑移的热激活理论对压缩实验结果进行了数值拟合，拟合曲线与实验数据符合很好，得到了晶界滑移的表观激活体积(热激活基本单位体积与局域瞬态应变的乘积) ，约为2500a ~ 3 ，先当于几十个原子体积大小的瞬态变化，约为非晶合金的10倍以上，与非晶高聚物的表观激活体积相当。 - Under the careful retrospection and analysis on the previous and recent experiments about mechanical behavior of nanocrystalline metals performed by almost main investigators , the dislocation and atomic diffusion is believed to contribute hardly to the deformation of nanocrystalline alloy , and a model based on thermal activation process was applied to fit the experimental data of nanocrystalline ag
结果表明，纳米晶金属ag的不仅具有比粗晶ag高2 - 6倍的拉伸和压缩强度，而且在大范性形变阶段显示了极低的加工硬化和应变速率敏感性。结合位错理路和非晶合金形变特征，提出纳米晶金属ag的塑性变形主要由于晶界滑移贡献。