摘要
通过宏观形貌观察、显微组织分析以及拉伸试验,研究了热轧温度及道次加工率对4004铝合金组织和力学性能的影响。结果表明,在300~460℃轧制时,4004铝合金板的裂边随热轧温度的提高而下降,440℃轧制的板材裂边最小,且组织均匀,强度和伸长率良好。按不同道次加工率轧制后,合金组织和性能变化不大。
The effects of hot rolling temperatures and pass processing rate on the microstructure and mechanical properties of 4004 aluminum alloy were investigated by macro-morphology observation, metallographie analysis and tensile tests. The results indicate that, when the alloy is roiled at 300-460 ℃, the edge crack of 4004 aluminum alloy sheet decreases with the increase of the hot rolling temperature. The edge crack of the sheet rolled at 440 ℃ is the smallest. And the microstructure is uniform, the strength and elongation are good. After rolling of different pass processing rates, the microstructure and properties of the alloy change little.
出处
《热加工工艺》
CSCD
北大核心
2017年第5期68-70,77,共4页
Hot Working Technology
关键词
4004铝合金
热轧
显微组织
力学性能
4004 aluminum alloy
hot rolling
microstructure
mechanical properties
