【摘要】 采用真空电弧熔炼炉制备了Al₂CrFeMo_0.5Ni₂Cu_x（x=0,0.3,0.6,0.9,1.2）高熵合金铸锭。通过X射线衍射仪、扫描电子显微镜、维氏硬度计、往复式摩擦磨损试验机以及电化学工作站研究了不同含量的Cu对Al₂CrFeMo_0.5Ni₂Cu_x合金微观组织、耐磨性和耐腐蚀性的影响。研究表明，随着Cu含量的增加，铸态Al₂CrFeMo_0.5Ni₂Cu_x高熵合金的相结构未发生改变，但合金的硬度、耐磨性和耐腐蚀性随着Cu含量的增加先升高后降低。在x=0.6时，合金的耐磨性能与耐腐蚀性能相对最佳。更多还原

【Abstract】 High-entropy alloy ingots of Al₂CrFeMo_0.5Ni₂Cu_x （x=0,0.3,0.6,0.9 and 1.2） were prepared byusing of a vacuum arc melting furnace.The effects of different contents of Cu on the microstructure,wear resistance and corrosion resistance of Al₂CrFeMo_0.5Ni₂Cu_x alloy were investigated by X-ray diffraction （XRD）,scanning electron microscope （SEM）,Vickers hardness tester,reciprocating friction and wear tester,and electro-chemical workstation.It showed that with increasing Cu content,the phase structure of the as-cast Al₂CrFeMo_0.5Ni₂Cu_x high-entropy alloys remained unchanged,but the hardness,wear resistance and corrosion resistance of the alloys were firstly increased and then decreased.At x=0.6,the wear resistance and corrosion resistance of the alloy were comparatively the best.更多还原