高频振动过滤对再生铝合金组织和性能的影响  

Effect of High-frequency Vibration Filtering on Microstructure and Property of Secondary Aluminum Alloy

作　　者：孟雪松 李军文 邵阳 丁小文 MENG Xuesong;LI Junwen;SHAO Yang;DING Xiaowen(School of Meterials Science and Engineering,Dalian Jiaotong University,Dalian 116028,Liaoning China)

机构地区：[1]大连交通大学材料科学与工程学院,辽宁大连116028

出　　处：《热处理》2021年第4期12-16,共5页Heat Treatment

摘　　要：采用泡沫陶瓷过滤器对3004再生铝合金熔体进行了高频振动过滤。研究了超声波发生器功率和泡沫陶瓷过滤器孔隙率对合金显微组织和力学性能的影响。结果表明:与熔体未经高频振动过滤的3004合金相比,其熔体经过高频振动过滤的再生3004合金发达树枝晶减少,骨骼状Al6(FeMn)相被打散,组织细化,夹杂物更少;抗拉强度提高了10%~20%,断后伸长率提高了15%~25%。The 3004 secondary aluminum alloy melt was subjected to high-frequency viberation filtering by a foamed ceramic filter.The effect of power of supersonic generator and porosity of foamed ceramic filter on microstructure and mechanical properties of the alloy were investigated.The results showed that relative to the 3004 alloy whose melt was not high-frequency vibration filtered,the secondary 3004 alloy whose melt was high-frequency vibration filtered exhibited less developed dendrite,dispersed skeleton Al_(6)(FeMn) phase,refined structure,less inclusions,10% to 20% higher tensile strength,and 15% to 25% larger elongation.

关 键 词：再生铝合金 泡沫陶瓷过滤器 高频振动 超声波 

分 类 号：TG146.21[一般工业技术—材料科学与工程]