亚晶粒

TEM组织观察表明蠕变之后亚晶粒边界清晰，亚晶之间的位相差很小，同时亚晶界位错间距减小，亚晶内位错密度几乎不变。

TEM observation shows that after creep the boundary of subgrain is clear , the phase difference between subcrystals is very small , while the subgrain boundary dislocation spacing decreases , the dislocation density within subgrain almost unchanged .

研究了如何使用商用有限元软件去设计推杆速度曲线，并比较等温挤压工艺和常规挤压工艺在挤压载荷、温度以及亚晶粒尺寸分布等方面的不同。

The focus is to design the ram velocity by using commercial finite element program . Differences in terms of load , temperature and subgrain size histories are compared between the isothermal extrusion and the normal extrusion .

晶格畸变减少和亚晶粒长大等等。回复过程涉及点缺陷、线缺陷和面缺陷综合回复机制。

The recovery process of Ag involves a comprehensive recovery mechanism of point defect , line defect and plane defect .

但通常表面喷丸方法只是细化了亚晶粒，对合金元素扩散的促进作用有限。

But the usual method of surface shot blasting just can refine the initial coarse-grains into subgrains and has little promotion effect on the diffusion of alloying elements .

并对烧结合金的组织、性能进行了分析，表明亚微米晶粒Ti（C，N）金属陶瓷的性能优良

The microstructure and properties of sintered alloys have also been studied , and it showed that the properties of submicron Ti ( C , N ) based cermets are greatly ameliorated

α+γ两相区形变时，铁素体（亚）晶粒发生回复式长大，<111>取向晶粒和<100>取向晶粒有不同的再结晶倾向。

When deformed at α + γ dual-phase region , the ferrite grains grew in the way of recovery . The recrystallization tendencies of grains with < 111 > and < 100 > orientations are different .

导出了电磁波在亚柱状晶粒中散射波强度与介质电磁参数（εr、μr）所满足的关系。

The relation of scattering waves strength through the subcylindrical particles to electromagnetic parameter (ε r ,μ r ) of media was worked out .

电磁波在亚柱状晶粒中散射的数值模拟

Numerical simulation of scattering of electromagnetic waves from the subcylindrical particles

另外，镀层中还存在亚微米级晶粒团簇，其尺寸随电流密度的增加呈线性增大。

There are many clusters of grains , whose sizes increase linearly with the increase of current density .

研究结果表明通入氮气能够增强超声空化作用；超声空化作用对亚硫酸钙晶粒形成过程起促进作用。

The results showed that adding nitrogen enhanced the ultrasonic cavitation effect , and ultrasonic cavitation effect accelerated the crystallization process of calcium sulfite .

研究了通入氮气对超声空化作用的影响以及空化作用的强弱对亚硫酸钙晶粒形成过程的影响。

The change of cavitation effect was study by adding nitrogen , and the influence of ultrasonic treatment that had different cavitation intensity on the crystallization process was investigated .

亚微米-纳米晶粒WC-Co硬质合金烧结与组织

Sintering and Microstructure of Submicro-Nano Crystalline WC-Co Cemented Carbides

结果表明，基体合金内具有明显的位错胞与亚结构，平均晶粒尺寸约为3～4μm。

The microstructure of matrix provided with obvious dislocation cell and substructure was fine with 3 ~ 4 μ m in grain size .