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An overview of modeling the stacking faults in lightweight and high-entropy alloys: Theory and application

机译：轻质和高熵合金堆垛层错建模的概述：理论与应用

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Modeling stacking faults in lightweight and medium- to high-entropy alloys is an exciting and fast developing field. Stacking faults and associated defects play a key role in understanding and modeling mechanical properties of alloys. We review the recent the studies of stacking faults, dislocations and twins in the novel alloys. Although this Review is focused on the theories and their applications in modeling stacking faults, relevant experimental progresses are also discussed. The Review starts with a brief introduction for the significance of stacking faults. The theoretical methods to calculate (generalized) stacking faults are then summarized and new developments of the methods are formulated. In the framework of thermodynamics, we discuss the factors that affect stacking fault energies with latest examples. Important applications of the (generalized) stacking fault method in lightweight and high-entropy alloys are demonstrated in details with research by us and other researchers. Last but not least, some generalizations of the generalized stacking fault method are discussed, among which is our new method to search possible twin boundaries. We conclude that many of these methods developed for the conventional alloys are ready for future applications in the medium- and high-entropy alloys as well.
机译：对轻质和中熵至高熵合金中的堆垛层错进行建模是一个令人兴奋且快速发展的领域。堆垛层错和相关的缺陷在理解和建模合金的机械性能中起着关键作用。我们回顾了最近关于新型合金中的堆垛层错，位错和孪晶的研究。尽管本综述着重于理论及其在堆垛层错建模中的应用，但也讨论了相关的实验进展。该回顾首先简要介绍了堆叠故障的重要性。然后总结了计算（广义）堆垛层错的理论方法，并阐述了这些方法的新发展。在热力学的框架中，我们以最新的例子讨论影响堆垛层错能量的因素。我们和其他研究人员的研究详细说明了（广义）堆垛层错方法在轻质和高熵合金中的重要应用。最后但并非最不重要的一点是，讨论了广义堆垛层错方法的一些概括，其中是我们用于搜索可能的孪生边界的新方法。我们得出的结论是，为常规合金开发的许多方法也已准备好将来在中熵和高熵合金中应用。

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