Dewetting kinetics of Al and NiAl metallic liquid films on NiAl (100) substrates was studied using molecular dynamics simulations. A new dewetting-spreading transitional behavior was observed for high temperature dewetting. The dewetting-spreading transition comes from the competition between unbalanced Young’s force and dissolutive reaction. Without dissolutive reaction, liquid films keep dewetting, but immediately turn into spreading when the dissolutive reaction involved. The dissolutive reaction depends on the initial Ni atom contents rather than the contact areas of dewetting films. The far-away-from saturated Ni content is the main mechanism which accelerates the wetting and reverses the dewetting process at high temperatures.

中文翻译：

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金属液膜的去湿动力学：杨氏不平衡力与溶解反应之间的竞争

使用分子动力学模拟研究了AlAl和NiAl金属液膜在NiAl（100）衬底上的去湿动力学。观察到高温除湿的新的除湿扩散过渡行为。去湿扩散的过渡来自杨氏不平衡力与溶解性反应之间的竞争。在没有溶解反应的情况下，液膜会保持脱湿状态，但是当涉及溶解反应时，液膜会立即扩散。溶解反应取决于初始Ni原子含量，而不取决于去湿膜的接触面积。远离饱和镍含量是加速润湿并逆转高温下反润湿过程的主要机理。