高强度铸造铝合金ZL107A固溶处理  

Solution Treatment of High Strength Cast Alluminium Alloy ZL107A

作　　者：李德成[1,2] 李玉胜[1,2] 单海波 曹英杰[1,2] 荣福杰 张希川[1,2] 

机构地区：[1]沈阳铸造研究所 [2]沈阳工业大学

出　　处：《金属热处理》1998年第8期8-10,共3页Heat Treatment of Metals

摘　　要：利用相图和金相分析确定了ＺＬ１０７Ａ合金铸态的相组成为：α（Ａｌ）、Ｓｉ、Ｍｇ２Ｓｉ、Ａｌ２Ｃｕ、Ｗ、ＴｉＡｌ３、ＡｌＢ２和ＴｉＢ２。根据凝固过程所涉及的５个共晶反应和不同加热制度的试验研究确定了ＺＬ１０７Ａ的固溶淬火制度为：（４９０±５）℃×４ｈ，（５００±５）℃×（４～６ｈ），（５１０±５）℃×（８～１２）ｈ，（６０～８０）℃水淬。采用该工艺，组织不发生过烧，Ａｌ２Ｃｕ和Ｍｇ２Ｓｉ等强化相又充分固溶，从而强化了合金。Phase Constituent of ZL107A alloy is determined by metallographic test and phase diagram,that is,structure of ZL107A alloy are composed of α(Al),Si,Mg 2Si,Al 2Cu,W,TiAl 3,AlB 2 and TiB 2 ZL107A solidification is related to five kinds of eutectic reaction,so that,in order to decide the process of solution treatment ZL107A,defferent effects of defferent heat treatment system on metallographic structure was investigated Solution heat treatment system of ZL107A alloy should be:(490±5)℃×4h,(500±5)℃×(4?6)h,(510±5)℃×(8?12)h,quenching in water bath of(60?80)℃ The system realizes solution of Mg 2Si and Al 2Cu in alluminium matrix completely and dosn 竧 result in overheated structure

关 键 词：铝合金 相组成 固溶处理 ZL107A 相图 

分 类 号：TG166.394[金属学及工艺—热处理]