吹气发泡工艺中Ca对颗粒分散和泡沫稳定性的影响 - TNMSC 关键字: 泡沫铝；吹气法；稳定性；浸润角；活性元素[gap=1392]Key words: aluminum foam; gas injection; stability; wetting angle; active element
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中国焊接行业网 关键词 ： 焊接熔池；Marangoni力；活性元素；气化；流场 [gap=973]Keywords ： weld pool;Marangoni force;activity element;vaporization;fluid flow
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... minor active-element 微量活性组元 active alloying element 活性元素 active terrain element 环境中的活动地形元素 ...
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结果表明：碳含量、浇注温度及表面活性元素对试样的变形及组织均有较大影响。
The results showed that the carbon content, pouring temperature and surface active elements have more effect on deformation and structure of the samples.
表面活性元素硫主要是通过改变熔池中流体的流动方式来影响熔池的形状和尺寸。
Sulfur can significantly influence the shape and size of the weld and final weld metal solidification structure by altering flow patterns.
间接地证明了含稀有元素y的氧化物薄膜产生了“活性元素效应”，提高了氧化物涂层的附着性。
At the same time it's proved that the "active element effect" has taken place in the Y bearing coating and it's beneficial to the improvement of the adhesion of the oxide coating.
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