CAJ | 학술논문

采用电弧炉熔炼制备了 Al0．5 FeCoCrNi 高熵合金,并对其在800,1000℃进行热处理,研究了热处理以及液固两相流中冲蚀参数(冲蚀角度、冲蚀速度、冲蚀时间)对其冲蚀磨损性能的影响,并与00Cr13Ni5Mo不锈钢的冲蚀磨损性能进行了对比.结果表明：在冲蚀角度为45°时,两种材料的质量损失率均最大,呈现出韧性材料的冲蚀磨损特性；随着冲蚀时间延长和冲蚀速度增大,两种材料的质量损失率均显著增大；热处理能提高高熵合金的硬度和冲蚀磨损性能,且800℃热处理后的便佳；高熵合金的冲蚀磨损性能优于不锈钢的；高熵合金的冲蚀磨损机制以切削、犁削和塑性变形为主,不锈钢的则主要为切削和挤压变形,且伴有碎裂的剥落.
채용전호로용련제비료 Al0．5 FeCoCrNi 고적합금,병대기재800,1000℃진행열처리,연구료열처리이급액고량상류중충식삼수(충식각도、충식속도、충식시간)대기충식마손성능적영향,병여00Cr13Ni5Mo불수강적충식마손성능진행료대비.결과표명：재충식각도위45°시,량충재료적질량손실솔균최대,정현출인성재료적충식마손특성；수착충식시간연장화충식속도증대,량충재료적질량손실솔균현저증대；열처리능제고고적합금적경도화충식마손성능,차800℃열처리후적편가；고적합금적충식마손성능우우불수강적；고적합금적충식마손궤제이절삭、리삭화소성변형위주,불수강적칙주요위절삭화제압변형,차반유쇄렬적박락.
Al0.5 FeCoCrNi high-entropy alloy was prepared by arc-melting and then was heat-treated at 800, 1 000 ℃.The effects of heat treatment and erosion angle,erosion rate and erosion time in liquid-solid two-phases folw on erosion wear resistance of the high-entropy alloy were studied,and then were compared with 00Cr13Ni5Mo stainless steel.The results show that the mass loss rate of the two materials were largest when the erosion angle was 45°,and they exhibited the erosion wear characteristics of ductile materials.Mass loss rate of the two materials all increased dramatically with the increase of erosion time and erosion rate.Heat treatment could increase the hardness and erosion wear resistance of the high-entropy alloy,and the hardness and erosion wear resistance heat-treated at 800 ℃ were relatively good.The erosion wear resistance of the high-entropy alloy was better than the stainless steel. The erosion wear mechanism of the high-entropy alloy was dominated by cutting, plough cut and plastic deformation,and that of the stainless steel was dominated by cutting,extrusion deformation and peeling off.