退火工艺对高硅1235铝箔坯料组织和性能的影响  

Effects of Homogenizing Annealing Treatment on Microstructure and Performance of High Silicon 1235Aluminum Alloy

作　　者：吴圆丽[1] 傅高升[2] 庄越秀 

机构地区：[1]福建船政交通职业学院 [2]福州大学 [3]广州优箔良才科技有限公司

出　　处：《特种铸造及有色合金》2018年第1期114-116,共3页Special Casting & Nonferrous Alloys

基　　金：福建省教育厅科技资助项目(JB13290);福建船政交通职业学院科技服务团队培育计划资助项目

摘　　要：高硅1235铝箔(Si含量为0.13%~0.14%)坯料由于Si含量增加,铸轧坯料中能形成较多有利的第二相αc-AlFeSi和βР-AlFeSi相,但同时使得其抗拉强度提高,不利后续加工。通过对第二相和性能分析,最佳的高硅1235铝箔坯料退火工艺为:530℃×4h,空冷。在该工艺条件下铸轧态的αc-AlFeSi得以保留,但尺寸有所增大,形貌转为以短棒状、颗粒状为主;同时,高硅1235铝箔坯料的抗拉强度比低Si铝箔坯料降低了6.05%;成品高硅1235铝箔的抗拉强度比低Si铝箔提高了7.55%,伸长率提高了84.15%。The contents of favorable phases like ac-AlFeSi and βp-AlFeSi are increased by increasing the element Si content in 1235 aluminum alloy, and tensile strength of the alloy is improved simultaneously. By analysis of the second phases and properties, the optimal annealing process of high silicon 1235 aluminum （ Si content by 13%-14%） is 530℃×4 h with natural cooling. The ac-AlFeSi phase in 1235 aluminum alloy is optimized with slight increase of size and short-rod structure. The tensile strength is declined by 6.05% compared to that of low silicon content. Compared to the end product of low silicon 1235 aluminum, the tensile strength and elongation of that with high silicon are improved by 7.55% and 84.15%, respectively.

关 键 词：高硅1235铝箔坯料 退火 微观组织 力学性能 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG156.2[金属学及工艺—金属材料]