Ti、Zr复合微合金化对合金的抗晶粒细化衰退性能影响  

Effect of Ti,Zr Composite Microalloying on Anti-fading Performance of Grain Refinement

作　　者：余爱武 杨成刚[1] 何鹏[1,2] 陈和[1] 黄忠宝[1] 

机构地区：[1]南昌航空大学轻合金加工科学与技术国防重点学科实验室,江西南昌330063 [2]哈尔滨工业大学先进焊接与连接国家重点实验室,黑龙江哈尔滨150001

出　　处：《稀有金属材料与工程》2016年第7期1798-1803,共6页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(51165038;51201087);省教育厅科技计划项目(GJJ13496;GJJ12453);航空科学基金(2011ZE56005);南昌航空大学研究生创新基金项目(YC2013005)

摘　　要：采用铸锭冶金法制备了Ti,Zr单独及复合微合金化的铝合金,采用OM、SEM、EDS及XRD等手段,研究并对比了Ti,Zr单独及复合添加时对合金晶粒的细化作用及在不同保温时间下对合金抗晶粒细化衰退性能的影响。结果表明,Ti,Zr复合添加时的晶粒细化效果比等量的Zr或Ti更加优异,且对合金晶粒细化衰退的抑制作用更加显著,当Al-0.15Zr-0.15Ti合金熔体的保温时间长达110 min时,合金仍保持着良好的晶粒细化作用。The Al alloys with Ti micro-alloying,Zr micro-alloying and their combined micro-alloying were prepared by an ingot metallurgy method.The effect of Ti,Zr and combined addition on the grain refinement and anti-fading performance of grain refinement was investigated by metallographic microscope（OM）,scanning electron microscopy（SEM）,energy spectrum（EDS）,X-ray diffraction（XRD） and other means.The results show that Ti and Zr composite addition receives more excellent grain refining effect and more significant anti-fading performance of grain refinement than their separate addition.When the holding time is up to 110 min,the Al-0.15Zr-0.15 Ti alloy keeps a good grain refinement effect.

关 键 词：微合金化 晶粒细化 保温时间 抗细化衰退性能 

分 类 号：TG292[金属学及工艺—铸造]