High entropy alloys as a new type of multi-principal element alloy materials,have attracted extensive attention due to their unique properties,and exhibit great potential in corrosion resistance. This article systematically summarizes the effects of alloying elements,phase structure and microscopic defects on the corrosion resistance of CoCrFeNi-based high entropy alloys based on the latest research trends. It elaborates the corrosion mechanism of CoCrFeNi-based high entropy alloys from the view of different microstructure characteristics. Based on the applications in different corrosive media at room temperature and high temperature,the broad applications prospects of CoCrFeNi high-entropy alloys in various fields are illustrated. Finally,the review and propose of the research trend on the corrosion resistance of CoCrFeNi-based highentropy alloys were summarized.
关键词
CoCrFeNi系高熵合金/耐腐蚀性/合金元素/相结构/微观结构缺陷
Key words
CoCrFeNi-based high entropy alloys/corrosion resistance/alloying elements/phase microstructure/microstructure defects