冷却速率对锌基合金组织及性能的影响  

The influence of cooling rate on microstructure and properties of zinc alloys

作　　者：郑建龙[1] 蒋永慧[1] 方允樟[1] 马远军[2] 郑金菊[1] 陆肖励[1] 叶慧群[1] 

机构地区：[1]浙江师范大学数理与信息工程学院,浙江金华321004 [2]浙江师范大学地理与环境科学学院,浙江金华321004

出　　处：《浙江师范大学学报（自然科学版）》2016年第4期375-378,共4页Journal of Zhejiang Normal University:Natural Sciences

基　　金：科技人员服务企业行动项目(2009GJC20019);浙江省重点科技创新团队项目(2011R50012);浙江省重点实验室项目(2013E10022)

摘　　要：采用砂模、铜模和水冷铜模铸造锌基合金,研究不同铸造模式下制得的锌基合金硬度、摩擦磨损性能情况及显微组织观察,用以研究冷却速率对锌基合金组织及性能的影响.结果表明:随着冷却速率的增大,锌基合金的硬度增大,晶粒细化;采用提高冷却速率的方法能提高锌基合金的耐磨性能,水冷铜模铸造的锌基合金比砂模铸造的锌基合金耐磨性能增强了13.0%.It was investigated the hardness, friction and wear properties and microstructure observation of zinc alloys which were casted by sand casting, copper mold and water-cooled copper mold in order to study the in-fluence of cooling rate on microstructure and properties of zinc alloys. The results showed that with the in-crease of cooling rate, zinc alloy. hardness increased, and the grain was refined. Increasing the cooling rate also improved the wear resistance of the zinc alloy. The wear resistance of zinc alloy casting by water-cooled copper enhanced by 13.0% compared with sand casting.

关 键 词：锌基合金 硬度 金相显微 冷却速率 耐磨性能 

分 类 号：TG146[一般工业技术—材料科学与工程]