Abstract：The conventional method for microstructure inspection of aluminum alloy is mainly metallographic method. However, this method is complicated in operation, easy to misjudge the slightly overburnt structure, and the grain display effect is not ideal, which has certain limitations. In order to analyze the microstructure of aluminum alloy more conveniently and accurately, the determination method for microstructure of 2A12 aluminum alloy was systemically investigated based on cross section polisher (CP) and electron back scattering diffraction (EBSD). The results show that compared with the conventional metallographic method, the burnt microstructure of aluminum alloy processed by cross section polisher could be determined sensitively and accurately under the optical microscope without corrosion, and the phase and grain size could be further analyzed accurately by electron backscattering diffraction.
刘艳锋, 潘永红, 李晓增, 赵宇清, 王法云. 基于氩离子截面抛光及电子背散射衍射技术的2A12铝合金显微组织检测方法探讨[J]. 冶金分析, 2024, 44(6): 25-29.
LIU Yanfeng, PAN Yonghong, LI Xiaozeng, ZHAO Yuqing, WANG Fayun. Discussion on determination method for microstructure of 2A12aluminum alloy based on cross section polisher and electron back scattering diffraction. , 2024, 44(6): 25-29.
[1] 崔忠圻,覃耀春.金属学与热处理[M].北京:机械工业出版社,2007. [2] 何翠云,莫文锋,罗兵辉,等.均匀化处理对2A12铝合金组织及性能的影响[J].材料导报,2022,34(6):12083-12087. HE Cuiyun,MO Wenfeng,LUO Binghui,et al.Effect of homogenization treatment on microstructure and properties of 2A12 aluminum alloy[J].Materials Reports,2022,34(6):12083-12087. [3] 刘昌奎.物理冶金检测技术[M].北京:化学工业出版社,2015. [4] 张微,谢善,昝晓君,等.2A02铝合金过烧组织特征及金相检验技术的改进[J].理化检验(物理分册),2021,57(1):8-14. ZHANG Wei,XIE Shan,ZAN Xiaojun,et al.Characteristics of 2A02 aluminum alloy overburned structure and optimization of metallographic examination technology[J].Physical Testing and Chemical Analysis(Part A:Physical Testing),2021,57(1):8-14. [5] 李学朝.铝合金材料组织与金相图谱[M].北京:冶金工业出版社,2010. [6] 李念奎,凌杲,聂波.铝合金材料及其热处理技术[M].北京:冶金工业出版社,2012. [7] Buchheit R G,Grant R P,Hlava P F,et al.Local dissolution phenomena associated with S phase (Al2CuMg) particles in aluminum-alloy 2024-T3[J].Journal of the Electrochemical Society,1997,144(8):2621-2628. [8] 梁孟超.固溶与时效工艺对2A12铝合金冷轧板微观组织及力学性能的影响规律研究[D].青岛:山东大学,2019. [9] 中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.GB/T 3246.1—2012 变形铝合金及铝合金制品组织检验方法 第1部分:显微组织检验方法[S].北京:中国标准出版社,2012.
