CAJ | 학술논문

采用粉末热挤压法制备2％Mg2 B2 O5w／6061Al，2％Gr／6061Al，2％SiCp／6061Al，2％ Mg2 B2 O5w ＋2％Gr／6061A，2％Mg2 B2 O5w ＋2％SiCp／6061Al，2％Mg2 B2 O5w ＋2％Gr＋2％SiCp／6061Al 单一及混杂增强的铝基复合材料，并对其耐磨性和摩擦行为进行研究。结果表明：随着载荷的增大，各种复合材料的磨损率均增大，石墨的添加增大了铝基复合材料的磨损率；复合材料的摩擦因数随载荷的增大而降低并趋于稳定，摩擦因数均介于0．22～0．32之间。未加入石墨的复合材料的磨损机制以磨料磨损和轻微的黏着磨损为主，加入石墨后复合材料的磨损机制转变为剧烈的黏着磨损。
채용분말열제압법제비2％Mg2 B2 O5w／6061Al，2％Gr／6061Al，2％SiCp／6061Al，2％ Mg2 B2 O5w ＋2％Gr／6061A，2％Mg2 B2 O5w ＋2％SiCp／6061Al，2％Mg2 B2 O5w ＋2％Gr＋2％SiCp／6061Al 단일급혼잡증강적려기복합재료，병대기내마성화마찰행위진행연구。결과표명：수착재하적증대，각충복합재료적마손솔균증대，석묵적첨가증대료려기복합재료적마손솔；복합재료적마찰인수수재하적증대이강저병추우은정，마찰인수균개우0．22～0．32지간。미가입석묵적복합재료적마손궤제이마료마손화경미적점착마손위주，가입석묵후복합재료적마손궤제전변위극렬적점착마손。
Single and hybrid Al matrix composites with 2% Mg2 B2 O5w/6061Al,2% Gr/6061Al, 2%SiCp/6061Al,2%Mg2 B2 O5w +2%Gr/6061Al,2% Mg2 B2 O5w +2%SiCp/6061Al,2% Mg2 B2 O5w +2%Gr+2%SiCp/6061Al reinforcements were prepared by powder hot extrusion process,and the wear resistance and the friction behaviour of the single and hybrid Al matrix composites were studied.The results show that the wear rates of all kinds of the composites increase with the load increasing,the wear rate of Al matrix composites increase with the addition of graphite,the friction coefficients of all kinds of the composites decrease with the load increasing and then become stabilized,the friction coef-ficient is between 0.22 to 0.32.Abrasive wear and slight adhesive wear dominate the wear mechanism of Al matrix composites without graphite,after the addition of graphite,the wear mechanism of Al matrix composites converts into serious adhesive wear.