摘要
为进一步掌握铝箔坯料在冷加工过程中的组织演变规律,以1235铝合金双零箔坯料为研究对象,探究其7.0 mm厚铸轧坯料冷轧至3.8,1.8,0.9,0.5 mm过程中第二相形貌、尺寸的变化情况。结果表明,铸轧坯料冷轧一道次后均匀化退火未改变第二相的属性,只是在一定程度上改变了相的尺寸,组织内的θ相(FeAl_(3))会发生溶解和均匀化扩散,且在高温下部分θ析出相形貌发生了变化,长大变成针状;后在一道次冷轧至1.8 mm过程中针状相发生了明显的“折断”,但在随后的冷轧过程中,针状相被破碎至5~8μm范围内以后再很难被进一步破碎,验证了针状第二相“硬而脆”的特性,说明在退火过程中控制尺寸>5μm第二相的数量的重要性。
In order to master the rule of microstructure evolution of aluminum double zero foil in the process of cold-rolling,the 1235 aluminum alloy foil billet was studied in this paper,the morphology and size change of the second phase of the 7.0 mm thickness cast-rolling foils during the cold working was investigated.The results showed that the homogenization annealing for the first pass rolled cast-rolling foils does not change the property of the second phase,but only changes the phase size to a certain extent,some precipitates θ(FeAl_3) dissolve,the morphology of partial θ precipitates tends to grow up to needle-liked shape;and then the needle-liked structures are broken during cold rolling to 1.8 mm,the needle-liked phases are difficult to be further broken after being broken in the range of 5~8 μm,the “hard and brittle” characteristics of the needle-liked second phases is verified,and the importance of controlling the quantity of the second phase with the size larger than 5 μm during annealing is explained.
作者
余党会
王生宁
刘建兴
YU Danghui;WANG Shengning;LIU Jianxing(Aluminum Research Institute,Gansu Dongxing Aluminum Co.,Ltd.of JISCO,Jiayuguan 735100,China)
出处
《中国材料进展》
CAS
CSCD
北大核心
2024年第4期331-335,共5页
Materials China
基金
嘉峪关市科技计划资助项目(QKJ22-02)。
关键词
1235铝合金
双零箔
第二相
均匀化退火
1235 aluminum alloy
double zero foil
second phase
homogenization annealing
作者简介
第一作者:余党会,男,1973年生,高级工程师,Email:yudanghui@jiugang.com。
