显微结构由细小柱晶和等轴晶构成。
The microstructure consists of fine-scale columnar and equiaxed grains.
在柱状晶与等轴晶过渡区中存在着偏聚物。
Segregated solutes and inclusions are distributed at the transition boundary of the column crystal and the equiaxial crystal.
金属铸态组织细化的关键是获得大量细小等轴晶。
The key to fining the structure of ingot casting lies in the formation of a number of fine equiaxed crystal grains.
解决这一问题的关键是扩大铸坯等轴晶区比例，细化晶粒。
The key to solve these problems is enlarging equiaxed grain zone and fining grain size.
降低钢水的浇注过热度是提高连铸坯等轴晶率的有效措施。
Low superheat casting is the important method of increasing equiaxed crystal ratio of bloom.
研究结果表明，向钢液中加入形核剂可有效地扩大等轴晶区。
The results show that adding medium carbon nucleating agents into high carbon steel grade can effectively enlarge equiaxed grain zone and fine grain size;
焊缝区组织主要为等轴晶和树枝柱状晶，熔合区组织主要为柱状晶。
The crystallizing morphology on the weld seam was equiaxed grains and dendrites and that on the fusion area were columnar crystals.
结果表明：锂能消除合金凝固态的柱状晶区并使之转变为等轴晶区；
The results show that the dendrite crystal area of alloy is diminished and then become equiaxed structures after lithium is added;
过滤后铸棒组织中的柱状晶区缩小，中心等轴晶区扩大、晶粒度降低。
The area of columnar structures decreased, and that of equiaxed crystals enlarged. The grain size reduced.
核化温度升高后，样品边界定向生长的柱状晶组织减少甚至被等轴晶取代。
When the nuclear temperature increases, less columnar crystals at the border of the sample are observed and equiaxed crystals form.
通过对焊接接头组织的分析，发现焊核区晶粒为明显的细化再结晶等轴晶；
The microstructure of the welded joints was studied by optical microscopy. It is found that the weld nugget has a dynamic recrystallization, fine isometric crystal structure.
LC9铝合金在773K热扭转中显微组织由粗大的柱状晶转变为细等轴晶。
The coarse column-like grains of LC9 alloy are changed into fine nearequiaxed oneS during torsion at 773K.
当磁感应强度和频率匹配合适时，焊缝成形良好，焊缝组织几乎为细小的等轴晶。
With optimum magnetic intensity and frequency, the weld microstructures were almost fine equiaxed grains and the weld shape was.
熔覆层接近熔合线部分出现枝状晶，熔覆层上层组织由细小的枝晶及等轴晶组成。
It melt cover close to alloy layer there aren't line the parts, melt cover layers of upper strata organize until tiny branch is the brilliant and equiaxed grain brilliant to make up.
奥氏体不锈钢经多道次热挤压后，能得到大角度等轴晶，且晶粒尺寸呈正态分布；
The high angular equiaxed grains of Austenite stainless steel were obtained by muti-passes pressed, and the statistical grain size obey the rule of normal school.
柱状晶向等轴晶转变（CET）是在一定的凝固过程中必须控制的一种显微组织转变。
The columnar to equiaxed transition (CET) is a kind of microstructural transformation in certain solidification, which should be controlled.
TEM观察表明绝热剪切带(asb)中心区域由30- 70纳米的等轴晶组成。
TEM observation showed that the center of the adiabatic shear band (ASB) was composed of recrystallized nano-grains (about 30-70 nm in diameter).
柱状晶向等轴晶转变(CET)的研究具有重要意义，数值模拟是其有效的研究方法之一。
It is of great significance to the research of columnar-to-equiaxed transition (CET), and numerical simulation is one of the valid methods.
中心等轴晶率模拟结果与工业试验检测结果相一致，据此，建立了柱状晶-等轴晶转变判据。
As a result, the simulated equiaxed crystal ratio was in accordance with testing results of industrial experiments, and then the criterion of columnar to equiaxed transition was found.
研究结果表明，制备的冷喷涂用ZA20、ZA27合金快凝粉末粒度分布均匀，组织为细小的等轴晶；
The results show that the grain size of produced ZA20, ZA27 alloy powder for cold spray is homogeneous, and the phase of the coat is equal axis crystal.
结果显示，新型模具ZA合金用TIG方法进行焊接，焊缝组织形态主要是柱状树枝晶和少量的等轴晶；
It was shown that after the ZA alloy was processed by TIG welding, the weld seam consists mainly of columnar dendrites and a small amount of equiaxial crystals;
从结晶器施加电脉冲输入能量、钢液过热度、电极间距三方面，探讨电脉冲处理提高铸坯等轴晶率的效果。
The improvement of slab equiaxed crystal ratio by electric pulse on liquid steel in continuous casting mould at Pan steel slab castor No.
从结晶器施加电脉冲的输入能量、电脉冲频率、钢液过热度角度，探讨电脉冲技术提高铸坯等轴晶率的效果。
The improvement of slab equiaxed crystal ratio by electric pulse on liquid steel in continuous casting mould of Panzhihua steel No.
挤压棒材表面质量良好无裂纹等缺陷，棒材中增强体颗粒和基体界面结合良好，基体合金中存在完整的等轴晶。
The surface of extrusion bar was of good quality without cracks. The interface between the particle and matrix bold was well and fine grains existed in the matrix.
通过引入异质形核模型、枝晶生长模型、几率形核基底模型，借鉴单元自动生长机制，仿真了等轴晶、柱状晶组织形成的过程。
Based on the cellular automata technique, the heterogeneous nucleation model, dendrite growth model and random nucleation model are used to simulate the formation of equiaxed and columnar dendrite.
结果表明，激光处理后试样表面熔凝区的组织主要为胞状枝晶组织，经后续热处理可转变为细小的等轴晶粒组织，并形成了良好的超塑连接条件。
The results show that, after laser surface processing, a melt layer with cellular-dendrite structure is formed, which could transform into very fine-grained structure during the annealing treatment.
根据等轴枝晶生长过程的物理机制，改进了等轴枝晶生长的溶质扩散模型。
In the light of physical mechanism of equiaxed dendrite growth, solute diffusion models for equiaxed growth was improved.
控制生产工艺条件，获得发达等轴枝晶组织，是提高灰铸铁强度性能的重要技术措施之一。
Controling conditions of production process to obtain developed isometric dendrite structure is one of the important measures to increase the strength property of gray iron.
控制生产工艺条件，获得发达等轴枝晶组织，是提高灰铸铁强度性能的重要技术措施之一。
Controling conditions of production process to obtain developed isometric dendrite structure is one of the important measures to increase the strength property of gray iron.
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