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首页> 外文期刊>ISIJ international >Wetting Characteristics Of Liquid Fe-19%cr-10%ni Alloys On Dense Alumina Substrates
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Wetting Characteristics Of Liquid Fe-19%cr-10%ni Alloys On Dense Alumina Substrates

机译:液态Fe-19%cr-10%ni合金在致密氧化铝基底上的润湿特性

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摘要

Using the sessile drop technique, the contact angle between a liquid Fe-19%Cr-10%Ni drop and a dense alumina substrate was measured under H_2 as well as CO_2-H_2 atmospheres in the temperature range of 1 753 to 1 823 K. The measurements were carried out both in the static mode and the dynamic mode. The static measurements in hydrogen showed that the contact angle decreased from 135 to 107° by increasing temperature from 1 753 to 1 823 K. In the dynamic mode, gas mixtures of different oxygen partial pressures were imposed on the system. At 1 753 K, the contact angle was decreased under the condition of oxide formation, whereas the contact angle was not changed under the condition of no oxide formation. At 1 823 K, the contact angle did not change regardless of the oxide formation. The time required for the surface oxide layer to fully cover the liquid metal drop was decreased by increasing the temperature.
机译:使用固着液滴技术,在1753至1823 K的温度范围内,在H_2以及CO_2-H_2气氛下,测量了Fe-19%Cr-10%Ni液态液滴与致密氧化铝基材之间的接触角。测量是在静态模式和动态模式下进行的。氢气中的静态测量结果表明,通过将温度从1 753 K升高到1 823 K,接触角从135降低到107°。在动态模式下,系统将不同氧分压的气体混合物施加到系统上。在1753K下,在形成氧化物的条件下接触角减小,而在没有形成氧化物的条件下接触角不变。在1 823 K时,接触角不随氧化物的形成而变化。通过提高温度,减少了表面氧化物层完全覆盖液态金属滴所需的时间。

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