2O3的WMoNbTaV難熔高熵合金，研究了燒結(jié)溫度對合金致密化行為、相結(jié)構(gòu)、顯微組織和耐磨性能的影響。結(jié)果表明：在1800~1900 ℃燒結(jié)時(shí)，WMoNbTaV-Al2O3高熵合金基體具有單一bcc相結(jié)構(gòu)，Al2O3的平均晶粒尺寸為1.15 μm。隨著燒結(jié)溫度升高，合金的晶粒尺寸增大，致密度和顯微硬度也在不斷增高，在1900 ℃燒結(jié)時(shí)硬度達(dá)到7967.4 MPa。1900 ℃燒結(jié)得到的合金具有優(yōu)異的耐磨性，磨損量僅為1800 ℃燒結(jié)合金的一半。且WMoNbTaV-Al2O3高熵合金的耐磨性遠(yuǎn)高于純W材料。當(dāng)磨料粒度為37.5 μm時(shí)，1900 ℃燒結(jié)的合金磨損量為0.9 mg，磨損性能是純W材料的83倍。;A new refractory high entropy alloy WMoNbTaV containing Al2O3 was prepared by spark plasma sintering. The effects of sintering temperature on densification behavior, phase structure, microstructure and wear resistance of the alloy were studied. The results show that when sintered at 1800?1900 °C, the matrix of WMoNbTaV-Al2O3 has a single bcc phase structure, and the average grain size of Al2O3 is 1.15 μm. With the increase in sintering temperature, the grain size of the alloy increases, the density and microhardness also increase, and the hardness reaches 7967.4 MPa when the sintering temperature is 1900 °C. The alloy sintered at 1900 °C has excellent wear resistance, and the wear amount is only half of that of the alloy sintered at 1800 °C. The wear resistance of WMoNbTaV-Al2O3 high entropy alloy is much higher than that of pure W material. When the abrasive particle size is 37.5 μm, the wear mass loss of alloy sintered at 1900 °C is 0.9 mg, and the wear resistance of alloy is 83 times higher than that of pure W material."/>