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- grain boundary surface energy 晶粒界面能
- The deformation mechanism of AZ91D superplasticity is grain boundary sliding. 挤压态AZ91D镁合金超塑性变形的主要机制为晶界滑移机制。
- Under the guide of the theory of minimum energy of the system, catenary equation specifying the facial size of the circumgyrating object is the minimum in static state is involved as the form of the research about transforming grain boundary. 基于系统能量最小原理,本文选择静态条件下旋转体表面积最小的悬索方程作为研究变形晶界的形态。
- The effect of anisotropy of grain boundary energy on the kinetic of grain growth is simulated by phase field method,in which a time-dependent misorientation in grain boundary is introduced. 引入与时间有关的取向错配场变量,模拟了晶界能各向异性条件下晶粒长大的演化行为。模拟结果表明,与晶界能各向同性系统相比,随演化时间的延长,晶界能各向异性延迟晶粒的生长,使得晶粒的平均面积呈非线性变化;
- The grain boundary secondary phase is an imporrant microstructure component in AIN ceram-ics,having significant effect on thermal conductivity. 晶界第二相是AIN陶瓷显微结构的重要组成部分,对AIN陶瓷的热导率有重大的影响。
- The surface energy can be inferred from the observations fairly accurately. 表面自由能可以从观测中相当准确地推算出来。
- Impurities tend to segregate at grain boundaries. 杂质常常在晶粒间界偏析。
- In practice, two semisilvered or aluminized glass optical flats from the reflecting boundary surface. 实际上,两块半镀银的或镀铝的光学平面玻璃构成了反射界面。
- And the energies of interdiffusion and grain boundary diffusion have been figured out by the Arrhenius equation. 从Arrhenius方程得出互扩散及晶界扩散激活能。
- The high life LCF cracks of DZ4 superalloy favorably initiate at the transverse segment of longitudinal grain boundary. 定向凝固DZ4合金高寿命低周疲劳裂纹易于萌生于试样内部或亚表面的柱状晶界.
- In practice, two semisilvered or aluminized glass optical flats form the reflecting boundary surface. 实际上,两块半镀银的或镀铝的光学平面玻璃构成了反射界面。
- In the late stage of the deformation, with the grain size growing up, the grain boundary can emit partial dislocations. 在晶界处及附近有台阶界面结构, 以及与台阶形状相对应的应力场衬度。
- The surface energy of mica cleaved in vacuum is about ten times that of mica cleaved in air. 在真空中剖开的云母的表面能比在空气中剖开的云母的表面能大十倍左右。
- In addition, a grain boundary is formed at the coalescence boundary of neighboring growth fronts. 在相邻生长前沿所形成的合并界面处形成晶界;
- Photomicrograph of alloy overheating showes fraction grain boundary coarsening and melt-back delta at first. 其过烧特征最初表现为晶界局部加宽和复熔三角形的出现。
- The reflection of ordinary light on the internal boundary surface of the uniaxial crystal is studied. 研究了寻常光在单轴晶体内表面上的反射规律。
- Two area defects are twins and grain boundaries. 有两种面积缺陷,即孪生和晶粒间界。
- Interannual and Seasonal Variability of the Surface Energy Balance and Temperature of Central Great Slave Lake. 湖中部表面能量平衡和温度的年际和季节变率。
- As the continuous chain distribution in grain boundary of T6 state,fracture toughness and stress crossion resistance are low. T6工艺晶界为链状连续分布,断裂韧性和抗应力腐蚀性能较差;
- The element content at grain boundary of advanced Fe-based superalloy GH871 containing Nb has been studied by Perkin-Elmer PHI 595 Auger spectrometer. 利用PERKIN ELMERPHI 5 95型俄歇谱仪研究了新型含铌铁基高温合金GH871的晶界上各元素的含量。