CAJ | 학술논문

利用喷射沉积过喷粉热压烧结制备了 Al50Si50合金，用 MMW-1型立式万能摩擦磨损试验机来测试不同热压烧结工艺条件下所制备合金的摩擦磨损性能，用金相显微镜和扫描电镜观察其组织和磨损形貌，并分析其磨损机理。研究结果表明：随着烧结压力增加、温度升高、时间延长，热压烧结试样的密度和致密度增加，摩擦系数和比磨损率降低。试样的磨损过程中存在磨料磨损和黏着磨损两种机制，且由于摩擦磨损过程中 Si 相的存在导致材料以磨料磨损为主。
이용분사침적과분분열압소결제비료 Al50Si50합금，용 MMW-1형입식만능마찰마손시험궤래측시불동열압소결공예조건하소제비합금적마찰마손성능，용금상현미경화소묘전경관찰기조직화마손형모，병분석기마손궤리。연구결과표명：수착소결압력증가、온도승고、시간연장，열압소결시양적밀도화치밀도증가，마찰계수화비마손솔강저。시양적마손과정중존재마료마손화점착마손량충궤제，차유우마찰마손과정중 Si 상적존재도치재료이마료마손위주。
Al50Si50 alloy was prepared by hot-pressing sintering using overspray powders during spray deposi-tion.The friction and wear ability of the alloys hot press sintered with different parameters were tested by MMW-1, and the microstructures and wear morphologies of the alloys were observed by metallurgic microscope and scanning electron microscope,and the wear mechanism was analyzed.Results show that the friction ratio and the specific wear rate decreased with the respective increase of pressure,temperature and the holding time during hot press sintering process.Simultaneously the density of the alloy was raised.During the friction and wear process,the surface of the al-loy was destructed by both abrasive wear and adhesive wear,but the abrasive wear was dominant.