影响扫描电镜检测铝合金罐身缺陷的因素  

Influence factors of scanning electron microscopy on defects detection of aluminum alloy can body

作　　者：王丹 宋文城 徐升 丁婉婷 史丹丹 WANG Dan;SONG Wencheng;XU Sheng;DING Wanting;SHI Dandan(Hangxin Material Technology Co.,Ltd.,Longkou 265713,China;National Aluminum Alloy Pressure Processing Engineering Technology Research Center,Longkou 265713,China)

机构地区：[1]航鑫材料科技有限公司,山东龙口265713 [2]国家铝合金压力加工工程技术研究中心,山东龙口265713

出　　处：《轻合金加工技术》2024年第10期63-67,共5页Light Alloy Fabrication Technology

摘　　要：铝合金易拉罐在制造、运输、使用过程中,经常会出现针孔、断罐、漏罐等问题,需要对上述问题进行原因分析,查找造成缺陷的原因。扫描电镜及其配备的能谱仪因其强大的分析功能可以快速对缺陷位置进行形貌及微区成分分析,成为目前查找缺陷原因的主要手段。但是大部分扫描电镜操作人员只采用常规制样或成像技术进行样品分析,不能根据待测样品的特点和测试需求来进行测试,导致获得的分析结果未能完全符合预期,甚至给出错误的分析结果。本文针对客户送检的易拉罐缺陷试样从试样制备、扫描电镜参数的调节、缺陷的观察等方面总结了一套合理、完整的铝合金罐身缺陷的试验方法,为在铝合金罐身缺陷检测中更好地使用扫描电镜提供参考。In the process of manufacturing,transportation and use,aluminum alloy cans often have problems such as pinholes,broken cans,and leaky cans,and it is necessary to analyze the causes of the above problems and find the causes of defects.The scanning electron microscope and its equipped energy dispersive spectrometer can quickly analyze the morphology and micro-composition of the defect location due to its powerful analysis function,which has become the main means to find the cause of the defect.However,most SEM operators only use conventional sample preparation or imaging techniques for sample analysis,while cannot conduct test according to the characteristics and testing requirements of the sample to be tested,resulting in the analysis results not fully in line with expectaions,even wrong analysis results.In this paper,a set of reasonable and complete test methods for aluminum alloy can defects are summarized from the aspects of sample preparation,adjustment of scanning electron microscope parameters,and observation of defects,so as to provide a reference for the better use of scanning electron microscope in the detection of aluminum alloy can defects.

关 键 词：扫描电镜 罐身 试样制备 试验方法 

分 类 号：TG115.21[金属学及工艺—物理冶金]