Passivation of Cu-Rh Alloys
Passivation of Cu-Rh Alloys
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DOI：
10.1149/1945-7111/ac0f60
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发表时间：
2021-07
影响因子：
3.9
通讯作者：
Yusi Xie;Swarnendu Chatterjee;Ling-Zhi Liu;H. Jin;K. Sieradzki
中科院分区：
文献类型：
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作者：
Yusi Xie;Swarnendu Chatterjee;Ling-Zhi Liu;H. Jin;K. Sieradzki
从历史上看，有两种普遍的方法来理解合金的钝化行为。一个涉及钝化膜的成分和晶体结构的研究，另一个涉及金属合金的成分和结构如何决定膜的形成。在这里，我们描述了一个新发展的理论，该理论基于Siradzki和Newman的猜想与渗流理论相结合，并用该理论模拟了一系列铜-Rh合金的钝化行为。我们的结果与该理论的预言在数量上是一致的。我们讨论了该理论如何解释短程有序在理解组成如何影响钝化过程的细节方面的重要作用。
Historically, there have been two general approaches for understanding alloy passivation behavior. One involves study of the composition and crystal structure of the passive film and the other is concerned with how the composition and structure of the metallic alloy dictates the formation of the film. Herein we describe a recently developed theory based on a conjecture of Sieradzki and Newman connected to percolation theory and use the theory to model the passivation behavior of a series of Cu-Rh alloys. Our results are in quantitative agreement with the predictions of this theory. We discuss how the theory elucidates the important role of short-range order in understanding how composition affects the details of the passivation process.