查询词典 solidification

The viscosity of 24 melts of different composition, containing not less than 60% CaF_2 and not more than 40%(CaO+La_2O_3), has been determined, and the phase characteristics of these melts under different solidification regimes has been investigated by petrography, EPMA and X-ray structural analysis.

对配料中CaF_2不低于60％，(CaO+La_2O_3)不高于40％的24组不同配料成分的熔渣的粘度进行了测定。研究了这类熔渣在不同冷凝制度下的物相特征。

The laser resolidification process makes it possible to explore the relationship between the phase formation and solidification velocity.

为确定等原子比附近 Ti-Al 包晶合金中相演化与生长速度的单一对应关系，具有外延生长的激光重凝技术提供了新的可能。

Onedimensional platelike dendritic model was built to describe the microsegregation during binary alloy solidification with finite solid backdiffusion and complete diffusion in the liquid.

建立了描述二元合金凝固的平面枝晶一维微观偏析数学模型，考虑溶质在固相中有限扩散，在液相中完全扩散。

The sinking rate of the spherical heavy solid in static liquid is in accord with Stocks formula.The plutonic inclusions in igneous rocks which formed as a result of solidification of magma have the same relation as magma.

静态流体中的球形固体重物的沉降速度服从Stocks公式，岩浆岩是由岩浆上升冷凝而成，在形成时与其中的深源包体也是这种关系，只是包体没有沉下去，反而随岩浆上升，说明岩浆上升速度大于最重最大包体的下沉速度，据此可确定该岩浆岩形成时岩浆流体上升的最小速度并推导出计算公式。

The lecture contains 12 chapters for 2 semesters and includes information of materials basic features and properties such as Crystallography, Motion state of electrons in solids, Crystal structure, Semi-crystals and non-crystals, Phase diagram, Point defects and line defects, Plane defects and volume defects, Diffusion, as well as the basic principles of materials processing such as Solidification, Deformation and recrystallization, Solid transformation.

授课内容分十二章；涉及材料最基本的性质和特征（晶体学基础，固体材料中电子运动状态，晶体结构，非晶态与半晶态，相图、晶体中的点缺陷与线缺陷、面缺陷与体缺陷、扩散）以及材料成形过程涉及的基本原理（凝固、形变与再结晶、固态相变等）。

In Chapter 6, the rapid solidification transformation due to pulsed Nd: YAG laser irradiation is analyzed.

第六章研究了脉冲激光快速熔凝所生成的快凝组织的演化过程。

It can be concluded that there are twice recalescence in solidification process of Cu-20%Pb hypomonotectic alloy with undercooling in the range of 0K to 238K.

合金熔体深过冷凝固行为在固溶体类合金[1，2]、共晶类合金[3，4]、包晶类合金[5，6]和偏晶类合金等方面都有研究。

For single phase solid solution Cu—Ni alloy, an apparent nucleation stage exists during its supercooling solidification, which is different from the traditional view combining nucleation into recalescence crystal growth.

3对单相固熔体Cu—Ni合金而言，其深过冷凝固过程中存在着明显的形核阶段，区别于传统观点将形核过程并入再辉阶段晶粒长大过程的看法。

After analysing the flight, cooling and undercooled solidification of multistage atomized droplets, this paper adopts Newtonial cooling, highly undercooled heterogeneous nucleation and steadystate continuous growth model to calculate and simulate numerically the thermal history of droplets and effect of main atomization process parameters during multistage atomization. The results indicated that large undercooling occur mainly during later stage of multistage atomization while recalescence and rapid quenching occur mainly during forced cooling stage.

在分析多级雾化过程雾化微滴的飞行冷却和过冷凝固特点及规律的基础上，本文采用了牛顿冷却、大过冷非均匀形核及稳态连续生长模型，对纯铝多级雾化过程中微滴热历史以及主要雾化工艺参数对其的影响作用进行了数值分析和计算，结果表明：大过冷主要是在多级雾化后期形成的，再辉和急冷则主要发生在强制冷却阶段。

Besides, the dendrite and the boride morphology in the big grain and small grains are same. All these results show that the boron addition does not influence the solidification process, but promote the β→α transformation, so still grain refined lamella can be gained at last.

这些实验结果表明：硼化物对Ti46Al8Nb基合金晶粒的细化作用主要不是通过改变 L →β的凝固过程得到的，而是通过影响凝固后的β→α固态相变来实现的。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。