论文部分内容阅读
通过扫描电镜(SEM)观察、能谱(EDS)以及X射线衍射(XRD)分析,对3104铝合金易拉罐成品罐体早期失效的断口处第二相和夹杂物进行了表征,并通过对合金原始铸锭中第二相的研究,系统地分析了缺陷形成的原因。结果表明,铸锭和缺陷断口上均分布有大量粗大的(FeMn)Al6、(AlFeMnSi)四元相和以氧化物夹杂为主的粗大夹杂物。这些粗大相和夹杂物是导致罐体开裂的主要原因,其来源于合金的熔炼和铸造过程。通过分析,提出了防止或减少粗大化合物和夹杂物的相应措施。
The second phase and inclusions in the early failure of 3104 aluminum can body were characterized by SEM, EDS and XRD. The second phase of ingot research, systematically analyzed the reasons for the formation of defects. The results show that a large number of coarse (FeMn) Al6, (AlFeMnSi) quaternary phases and coarse inclusions dominated by oxide inclusions are distributed on the ingot and the fault fracture. These coarse phases and inclusions are the main causes of cracking of the cans, which are due to the melting and casting process of the alloy. Through the analysis, the corresponding measures to prevent or reduce the coarse compounds and inclusions are proposed.