摘要
借助于光学显微镜、扫描电镜和透射电镜手段,研究了预退火对一种工业用3系列铝合金组织和性能的影响,并在工业退火中得到应用。结果表明：275-300℃为此3系列铝合金析出相的析出温度,在此温度区间内预退火,弥散的析出相优先发生于位错和亚晶界等缺陷处。工业退火中采取快速通过此析出温度的退火工艺,使再结晶发生于析出之前,可改善组织,提高伸长率。
Effects of pre-annealing process on the recrystallization microstructure and properties of an industrial 3-series aluminum alloy were investigated by means of optical microscope, SEM and TEM. The results indicate that, when pre-annealing at 275-300 ℃, precipitation occurs preferentially at dislocations and subboundaries, thus inhibiting recrystallization nucleation, and resulting in coarse grains and deteriorative properties eventually. By adopting the improved industrial annealing process of rushing through the precipitation temperature zone, recrystallization is prior to precipitation, and fine grains with increased elongations are obtained.
作者
袁婷
陈雅萱
张全成
张敏达
YUAN Ting;CHEN Yaxuan;ZHANG Quancheng;ZHANG Minda(Shool of Chemistry ＆ Material Engineering,Changshu Institute of Technology,Changshu 215500,China;Jiangsu Key Laboratory of Recycling and Reuse Technology for Mechanical and Electronic Products,Changshu 215500,China;Shool of Mechanics and Materials,Hehai University,Nanjing 211100,China;Jiangsu Alcha Aluminum Co.,Ltd.,Changshu 215532,China)
出处
《热加工工艺》
CSCD
北大核心
2018年第20期198-201,共4页
Hot Working Technology
基金
江苏省机电产品循环利用技术重点建设实验室开放基金项目(KF1608)
苏州市科技发展计划项目(SYG201820)
关键词
3系列铝合金
预退火
析出
再结晶
工业退火
3-series A1 alloy
pre-annealing
precipitate
recrystallization
industrial annealing
