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In the columnar equiaxed transition model, the transition process was displayed dynamically.

柱状晶向等轴晶过渡模型中,提出了过渡判据并动态显示了过渡过程。

The difference between the sample with high columnar crystal and the sample with high equiaxed crystal has been studied by using the two parameters.

本文应用上述参数对比研究了柱状晶发达与等轴晶发达样品的差异。

In the fusion zone, the columnar grains range in the direction of heat dissipation on one side of the joint and fine equiaxed grains on the other side.

在熔合区,焊缝一侧为沿散热方向排列的柱状晶,另一侧为细小的等轴晶组织。

It was found that more segregations of C, P, S and Mn occurred at the boundaries between the columnar grains and equiaxed grains.

研究中发现,在铸坯柱状晶与中心等轴晶带的边界处,C、F、S、Mn发生较大的正偏析。

By applying electromagnetic vibration on solidification front of Sn-10Pb alloy,creation of equiaxed grain zone in ...

在低强度电磁振荡条件下,凝固组织细化和等轴晶化的原因是:电磁振荡力对金属初生晶的周期性拉伸、压缩、剪切、折弯、扭转等机械作用,使其出现断裂和剥落,增加形核数量;电磁振荡的局部搅拌作用使固/液界面前沿的温度和成分趋于均匀化,导致梯度降低,抑制了柱状晶的生长。

Experimental results show that rapid solidification technology can remarkably optimize Mg-Zn-Nd alloy's microstructure and property,there are three zones of fine grain zone,columnar grain zone and equiaxial grain zone in ribbon's solidification structure,which reserve structure character of cast-magnesium alloy.

结果表明:快速凝固技术可显著优化Mg-Zn-Nd合金的组织结构与性能;薄带的凝固组织分为细晶区、柱状晶区、等轴晶区三个区域,保留了铸态凝固组织的特性;快速凝固技术的细晶强化和固溶强化可明显改善Mg-Zn-Nd合金的强度与塑性。

An EPMA was performed quantitatively on the influence of Ce upon the Mn segregation in cellcrystals, columnar and Equiaxial dendrites of high-Mn steel.

与此同时,用电子探针微区分析考察了Ce对高锰钢中Mn在胞晶、柱状树枝晶及等轴晶内偏析的定量影响。

TiAl alloys ; solute shock wave ; columnar to equiaxial transition

TiAl合金;成分冲击波;柱状晶/等轴晶转变

Under scanning electron microscope,barite in these samples occurs as euhedral crystal,co-existing with authigenic quartz and albite with the same idiomorph.Considering the geological setting and c rystal form,it is believed that barite occurred in the study area is compara ble with that found in the Guaymas Basin,Gulf of California,i.e.,with hydrothermal origin.

通过对东太平洋多金属结核中国开辟区表层沉积物和短柱状沉积物的系统观察和分析,首次根据矿物学和地球化学两方面的证据,发现中国开辟区沉积物中热水活动及其产物的存在。X射线衍射分析表明,沉积物样品中普遍含有重晶石,部分样品中含量高达10%以上。

Filaments connate; anthers very large, decurrent to base of column, apex acuminate; pollinia 2 per pollinarium, slender, falcate, pendulous.

花丝合生花药柱状,先端渐尖的非常大,下延的至基部;花粉块2 每pollinarium,纤巧,镰刀形,下垂。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

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