稀土熔剂对铝熔体及其合金力学性能的影响  

Effect of Rare Earth Flux on Aluminum Melt and Alloy Properties

作　　者：唐鹏 刘裔源 陈寒冰 彭林欣[3] 邓松云 左茜 吴翩卉 TANG Peng;LIU Yiyuan;CHEN Hanbing;PENG Linxin;DENG Songyun;ZUO Xi;WU Pianhui(School of Resources,Environment and Materials,Guangxi University,Nanning Guangxi 530004,China;Center of Ecological Collaborative Innovation for Aluminum Industry in Guangxi,Nanning Guangxi 530004,China;School of Civil Engineering and Architecture,Guangxi University,Nanning Guangxi 530004,China;Guangxi Alnan Institute of Aerospace Transit Aluminum Alloy and Application,Nanning Guangxi 530031,China;College of Mechanical Engineering,Guangdong Normal University of Technology,Guangzhou Guangdong 510665,China)

机构地区：[1]广西大学资源环境与材料学院,广西南宁530004 [2]广西生态型铝产业协同创新中心,广西南宁530004 [3]广西大学土木建筑工程学院,广西南宁530004 [4]广西南南铝航空交通铝合金新材料与应用研究院,广西南宁530031 [5]广东技术师范大学机电学院,广东广州510665

出　　处：《机床与液压》2020年第22期45-49,共5页Machine Tool & Hydraulics

基　　金：广西自然科学基金(2017GXNSFAA198271);广西有色金属及特色材料加工重点实验室项目(GXYSYF1812);广西大学博士启动项目(XBZ190876);广西科协青年科技工作者专项课题(2019ZB-11);广西生态型铝产业协同创新中心项目(20190255);南宁市优秀青年科技创新创业人才培育项目(RC20190105);南宁市科学技术项目(20171102)。

摘　　要：基于吸附净化原理研究稀土熔剂对铝熔体的精炼效果,并采用光学显微镜、扫描电镜和力学性能测试等手段,研究复合熔剂对铝熔体净化及其合金力学性能的影响。研究表明:含氯化盐68.9%、碳酸钙8.6%和氟化镧5.1%的复合熔剂对铝熔体净化处理效果最好,合金试样中的孔隙度由8.25%降至1.32%,硬度由HB91.7提高到HB99.3,延伸率由0.53%提高至1.12%,抗拉强度由113.9 MPa达到229.0 MPa。The refining effect of rare earth flux on aluminum melt was studied based on the principle of adsorption purification,and the effect of composite flux on aluminum melt purification and mechanical properties of alloy was studied by means of optical microscope,scanning electron microscope and mechanical properties test.The results show that the composite flux with the proportion of 68.9%chloride,8.6%calcium carbonate and 5.1%lanthanum fluoride has the best effect on the purification of aluminum melt,the porosity of the alloy sample decreases from 8.25%to 1.32%,the hardness increases from HB91.7 to HB99.3,the elongation increases from 0.53%to 1.12%,and the tensile strength increases from 113.9 MPa to 229.0 MPa.

关 键 词：铝熔体 富澜 稀土熔剂 气孔率 力学性能 

分 类 号：TG290[金属学及工艺—铸造]