Corrosion‐Resistant High Entropy Stainless Steels — A Perspective
AbstractRecently, new generation, promising functional alloys for different applications, developed via high entropy (HE) alloying method, have gained attention both from academia and industry. This technique is mainly alloying of at least five major elements in equiatomic or near equiatomic ratios and positioning all the elements in the same lattice using the high entropy of mixing of the system. These unique HE alloys can be obtained using the suitable combinations of almost all the metallic elements present on the periodic table. The main question is, “what is the most important property for a stainless steel?” Clearly, the answer is corrosion resistance. In addition, it is well known that protective surface films play a key role in corrosion resistance of the stainless steels. HE alloys are innovative and promising materials due to their excellent corrosion properties. Key documents on the corrosion behaviour of the high entropy stainless steels have been reviewed under this study.