Preparation method of high-performance eutectic high-entropy alloy composite material

• Main Authors: YAO WANGSHI, TAO WANGWANG, LIAN XINLONG, ZHUANG DONGDONG
• Format: Patent
• Language: Chinese; English
• Published: 21.06.2024
• Subjects: ALLOYS; CASTING; CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; FERROUS OR NON-FERROUS ALLOYS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; WORKING METALLIC POWDER

The invention provides a method for preparing a eutectic high-entropy alloy composite material. According to the method, firstly, a ceramic-reinforced FeCoCr blank and a ceramic-reinforced AlNi blank are prepared through a hot pressing sintering method, then the ceramic-reinforced FeCoCr blank and the ceramic-reinforced AlNi blank are subjected to surface treatment through a laser melting method, then the ceramic-reinforced FeCoCr blank and the ceramic-reinforced AlNi blank are overlapped together through multiple times of severe plastic deformation hot rolling, and finally the ceramic-reinforced FeCoCr blank and the ceramic-reinforced AlNi blank are obtained. And the eutectic high-entropy alloy composite material is obtained. Due to the fact that the ceramic reinforced FeCoCr blank and the ceramic reinforced AlNi blank are prepared respectively, the FeCoCr blank and the AlNi blank do not influence each other in the forming process, and the influence that a ceramic phase is not beneficial to simultaneous form