亚晶界

Sc、Zr联合添加形成的二次铝化物Al3（Sc，Zr）对位错和亚晶界具有强烈地钉扎作用，阻碍再结晶的形核，从而有效地抑制再结晶。

The starting temperature increase 120 . The secondary aluminide Al3 ( Sc , Zr ) inhibit recrystallization effectively by the pinning effect on dislocation and subgrain boundary .

EDX分析表明分散在亚晶界的碳化物析出相主要含Fe、Si、Mn等元素，说明经过蠕变后有合金碳化物析出，碳化物相的结构并未发生变化。

EDX analysis shows that the carbide precipitates in the subgrain boundary containing mainly Fe , Si , Mn and other elements , it shows that after creep the carbide alloy appear precipitation and the structure did not have changed .

X射线劳厄法的研究表明，在合成云母中存在着较大程度的一维无序，并因而出现许多堆垛错排区及其亚晶界。

By using X-ray Laue method , it is showed that in synthetic mica there is a greater degree of one-dimensional disorder , and therefore there are a number of disarranged regions of stacking sequence and their boundaries .

分析认为，AlMMCs中大量的晶界、亚晶界、位错等短路扩散通道的存在，直接影响TLP连接过程及其动力学。

It indicated that great diffusion channel such as along grain boundaries , sub-grain boundaries and dislocation among Al MMCs directly affected the progress of TLP bonding and dynamics .

Nb（C、N）和V（C、N）主要在位错、晶界和亚晶界等处析出，一般成椭圆形、圆形或不规则形状，可以有效钉扎位错运动，产生显著的晶粒细化效果。

Nb ( C , N ) and V ( C , N ) mainly precipitate on dislocation , grain boundary and sub-boundary , with oval , round or irregular shape , they can effectively pin the movement of dislocation , also have significant grain refinement effect .

M23C6相钉扎位错及亚晶界，强化合金基体，提高形变抗力。

M 23 C 6 pinns up dislocations and subgrain boundaries , strengthening the alloy matrix and increasing deformation resistance .

OIM和TEM分析都表明在蠕变过程中有亚晶（界）生成，除存在原始大角度晶界的连续破坏外，还存在亚晶界和大角度晶界的动态生成现象。

The analysis of OIM and TEM displays that Sub-grain is formed during creep tests . Except for continued destroy of original large-angle grain boundaries , there exists the development of sub-grain boundaries transforming to large-angle boundaries .

在对合金190℃时效特征研究基础上，着重探讨了合金的两个主要强化δ′（Al3Li）和T1（Al2CuLi）相同以及T1相与亚晶界间的耦合作用。

The interaction of main strengthening phases δ′ ( Al 3Li ) and T 1 ( Al 2CuLi ) phase , and of T 1 phase and the low-angle grain boundary were studied on the basis of investigation of aging characteristics .

可以用点缺陷浓度、相变应力及亚晶界运动等因素分析Fe3O4向FeS2转变过程中的微观组织参数变化规律。

The changes of point defect concentration in the crystal lattice , phase transformation stress from Fe_3O_4 to FeS_2 and sub-boundary behaviors in the FeS_2 grains can be considered to be responsible for the changes of microstructure parameters with the sulfurizing time .

另外，在有平衡相析出的高角晶界容易形成无沉淀区，在峰值时效条件，其宽度可达200nm以上，但在亚晶界难以形成。

In addition , the precipitate free zone ( PFZ ) can form at high angle grain boundary and its width is over 200 nm at peak aging condition . But at sub-grain boundary , the formation of PFZ is difficult .

研究结果表明：（1）纯镁和镁合金（ZM-5）试样表面进行喷丸处理，试样表层的晶粒得到了细化，在原有的晶粒内部出现了大量的新生亚晶界；

The results show that : ( 1 ) The grain near the surface of the specimen was greatly refined after shot blasting treatment , and a large number of new sub-boundaries emerged inside or between the former grains ;

温度的降低阻碍亚晶界的湮没；

The reduction of temperature hinders the process of annihilation .

最后对小角度晶界和亚晶界的位错网络结构、晶界类型等问题进行了探讨。

Some problems concerning their structure of dislocation network and type were also discussed .

其动态再结晶机制是“亚晶界独立生长成为大角度晶界”。

The mechanism of the dynamic recrystalli-zaton is : quasi-crystal boundary independently grows into Iargc angle boundary .

结果表明，镀层中Fe2Al5相择优取向生长，其亚晶界呈平行条状。

The results show that the Fe_2Al_5 phase grows a strong orientation , whose subcrystal boundaries appears in parallel linear .

应用刻痕实验和金相组织观察方法，发现了大量亚晶界和亚晶界的运动。

By nicking and metallographic methods , lots of subgrain - boundaries and movement of these subgrain - boundaries are discovered .

受焊接二次热循环影响的焊缝凝固亚晶界发生了一定程度的溶解，但铌相并没有完全溶解。

Niobium phases on the solidification subgrain boundary partly dissolved after the weld metal was reheated by the following welding heat .

发现适当降低聚焦加热灯强度、提高衬底加热温度可以降低固化前沿温度梯度，从而降低亚晶界等缺陷密度。

It is found that the temperature gradient of solidifying front edge could be reduced by reducing focused lamp intensity and increasing substrate temperature .

在此基础上实验观察了白宝石单晶中的位错、亚晶界和小品面等缺陷的形态、数量及分布，讨论了生长条件对它们的影响。

The void formation and its micrograph of distribution , density as well as void size in sapphire single crystal grown by EFG were investigated .

在950℃以下热变形时，奥氏体以亚晶界独立生长成为大角度晶界方式动态再结晶。

Otherwise , dynamic recrystallization is taken place by the mechanism that sub-grain boundary grows into large-angle grain boundary independently while hot deforming below 950 ℃ .

金属和合金中的面缺陷包括晶界、亚晶界、孪晶界、相界、堆垛层错、外表面等。

The plane defects of metals and alloys include grain boundary , sub-grain boundary , twins grain boundary , phase boundary , stacking fault , outward surface , etc.

在300℃退火时，析出相优先在位错、亚晶界等点阵缺陷处形核，较大的冷轧变形量将导致更多的析出；

Annealing at 300 ℃, the precipitates are nucleated preferentially at lattice defects , such as dislocations and sub-boundaries , higher cold reduction results in a larger number of precipitates .

研究结果显示，合金的屈服强度主要由基体大角度晶界强化、位错强化、亚晶界强化和晶格摩擦应力四部分组成，其中亚晶界强化是一个亟待深入研究的课题。

The result shows that yield strength of alloy mainly come from large angle grain boundary strengthening , dislocation strengthening , sub-boundary strengthening and friction stress of lattice , while the sub-boundary strengthening should be further discussed .

利用同步辐射白光形貌术分析了晶体内部的主要缺陷为包裹体、位错、位错簇、晶界、亚晶界以及应力区等。

There are the main defects of inclusion texture , dislocation , dislocation cluster , grain boundary , sub-boundary , stressed zone and so on in the internal crystal , using the white light pattern technique of synchrotron radiation .

MA导致复合粉末细化与扁平化，自由表面、晶界、亚晶界以及位错等晶体缺陷的急剧增加而明显地降低了扩散激活能，它是形成过饱和固溶体和促进第二相析出的主要原因。

The composite powders after MA are fine and flat . The formed defects such as free surface , grain boundary , sub grain boundary and dislocation decrease diffusion activity energy , which is the important reason for developing super saturated solid solution and promoting the second phase precipitation .

晶界角度测试结果表明，保温后亚晶的平均晶界角度随析出相间距而增大。

The results indicated that the boundary angle of subgrains increases with the precipitate spacing after holding .

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 .