CAJ | 학술논문

通过正交试验方法，利用金相显微镜、显微硬度测量仪、MM－2000摩擦磨损试验机研究Al、Cu、Si、Mg对锌合金组织和耐磨性能的影响，确定了优化成分。结果表明，合金最优化的成分为：15％Al、3．5％Cu、0．10％Mg、1．0％Si，其耐磨性能较Zn－13Al合金提高4．6倍，硬度提高59．6HV。过量Si降低合金耐磨性能，Cu可以细化合金组织，Al、Mg、Cu都能提高合金的硬度和耐磨性能。再通过固溶强化处理，细化晶粒，提高韧度硬度和耐磨性能，得到最优的温度时间组合为300℃保温5小时。
통과정교시험방법，이용금상현미경、현미경도측량의、MM－2000마찰마손시험궤연구Al、Cu、Si、Mg대자합금조직화내마성능적영향，학정료우화성분。결과표명，합금최우화적성분위：15％Al、3．5％Cu、0．10％Mg、1．0％Si，기내마성능교Zn－13Al합금제고4．6배，경도제고59．6HV。과량Si강저합금내마성능，Cu가이세화합금조직，Al、Mg、Cu도능제고합금적경도화내마성능。재통과고용강화처리，세화정립，제고인도경도화내마성능，득도최우적온도시간조합위300℃보온5소시。
Through the orthogonal test method and by means of the metallographic microscope , micro-hardness tester , MM-2000 wear resistance test machine , the effect of Al , Cu, Si, Mg on microstructure of zinc alloy friction and wear properties was studied , the optimal composition was determined .The re-sults showed that the alloy optimization component is:15%Al, 3.5%Cu, 0.10%Mg, 1.0%Si, the wear resistance of Zn-13Al alloy is improved by 4.6 times, the hardness is increased 59.6HV.Excess Si re-duced wear resistance alloy , Cu can refine the structure of alloys , Al, Mg, Cu can improve the hardness and wear resistance of the alloy .And then through the solid solution strengthening treatment , grain re-finement, the toughness , the hardness and wear resistance are improved .The optimal combination of temperature and time is 300℃for 5 hours.