渗铝

Liquid diffusion technology was used to aluminize on the surface of AZ31 magnesium alloy.The hypereutectic aluminized coating was obtained.

采用液相扩渗技术在挤压态AZ31镁合金表面快速渗入铝，在合金表面获得过共晶渗层，并对渗层的成分、相组成、扩渗过程、纳米硬度和腐蚀性能进行分析。

In this paper, finite element software ANSYS is used to simulate the thermal conductivity and pressureless infiltration technique is used to produce aluminum infiltrated silicon carbide composite with high volume fraction of SiC. The influence of interfacial thickness and temperature on thermal conductivity and CTE have been investigated and analysed.

本文采用有限元软件ANSYS对铝渗碳化硅复合材料的有效热导率进行了数值模拟，用无压浸渗法制备了高体积分数的铝渗碳化硅复合材料，研究了界面层厚度和温度等对铝渗碳化硅复合材料的热导率和热膨胀系数的影响，并进行了分析。

In order to illustrate the phenomena occurred in the technological experiments, the infiltration dynamics of liquid aluminum into porous media was simulated in accordance with the laws of similitude. The results show that (1) the relation between the displacement of infiltration front and the advancing time is 〓;(2) the pressure of infiltration changes with time according to 〓;(3) the distribution of pressure in the direction of infiltration length is P=a〓+b〓L.(4) the change of temperature or viscosity of molten aluminum affects infiltration velocity in fillers of diameter in the range of 1. 5～5. 5mm very little, but this velocity in fillers of diameter 0.5mm is reduced with the decrease of AL temperature.

为了说明工艺试验中显示的各种现象，作者根据相似原理，采用模拟试验研究了铝液在多孔介质中的渗流过程，得到铝液渗流动力学规律如下：（1）渗流前沿位移—渗流进行时间关系为〓；（2）渗流压强随渗流时间的变化规律为〓；（3）渗流压强沿渗流长度分布为P=a〓+b〓L；（4）铝液温度降低或粘度加大时，对大于1.5mm的颗粒之间的渗流速度影响不大，但使0.5mm颗粒之间渗流速度减小。

Microstructure and oxidation-resistance property of aluminizing layer of two kinds of high-chromium steel .

两种高铬钢渗铝层的组织和抗氧化性能。

Surface modification treatment on pure magnesium was conducted at 445 ℃ by vacuum solid diffusion aluminizing.

采用真空扩散渗铝的方法，在445℃对纯镁进行了表面合金化改性处理。

The aluminizing process by low press packing cementation on the surface of K17 superalloy was investigated in this paper.

摘 要：研究了在高温合金K17表面上低压固体粉末包埋渗铝工艺。

Aluminizing the fine copper ' s surface could enhance its strength, rigidity, abrasion resistance and corrosion-resisting properties.

对纯铜表面进行渗铝，可以提高其强度，硬度，耐磨损性和耐蚀性能。

Aluminizing the fine copper ' s surface may enhance its strength, rigidity, abrasion resistance and corrosion-resisting properties.

对纯铜表面进行渗铝，可以提高其强度，硬度，耐磨损性和耐蚀性能。

The nanometer-particle SiC dispersing in coating can migrate and accumulate during the high activity aluminizing process.

在高活度渗铝过程中，弥散分布在复合镀层中的纳米级SiC颗粒在涂层／基体界面发生了富集。

Preferential dissolution of α phase for specimens processed less than 12 hrs were revealed by using ICP-MS (inductively coupled plasma-mass spectroscopy). Hydrides having precipitated in the α-phase at the near surface peeled off into the electrolyte, and thus resulted in reduced HUE for specimens having experienced longer charging periods. In order to increase HUE, the hydrogenation promoter, Na2S2O35H2O, was added into the electrolyte to see the effect on the hydrogen absorption.

感应耦合电浆质谱分析术(inductively coupled plasma-mass spectroscopy； ICP-MS)分析发现，渗氢前一阶段（12小时）铝元素有较明显之溶释现象，此一现象肇因於渗氢作用使近表面层α-相中析出之氢化物体积逐渐扩大膨胀，最后剥落而溶於硫酸水溶液，也因此造成长时间之渗氢效率未随渗氢时间增加而增加。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。