Zn5.5Al2.5Mg镀层结构特征及典型组织分析  

Analysis on microstructure and typical phases of hot-dip coated Zn5.5Al2.5Mg alloy

作　　者：董妮妮 李铁军[2] 李研[3,4] 蒋光锐 王保勇[5] 刘武华 刘新华 DONG Nini;LI Tiejun;LI Yan;JIANG Guangrui;WANG Baoyong;LIU Wuhua;LIU Xinhua(Manufacturing Department,Shougang Jingtang United Iron&Steel Company,Tangshan 063200,China;Shougang Institute of Technology,Beijing 1000432,China;Institute of Strip,Shougang Research Institute of Technology,Beijing 100041,China;Beijing key Laboratory of Green Recyclable Process for Iron&steel Production Technology,Shougang Group,Beijing 100043,China;Technology Center,Shougang Jingtang United Iron&Steel Company,Tangshan 063200,China)

机构地区：[1]首钢京唐钢铁联合有限责任公司制造部,河北唐山063200 [2]首钢工学院,北京100043 [3]首钢技术研究院薄板研究所,北京100043 [4]首钢总公司绿色可循环钢铁流程北京市重点实验室,北京100043 [5]首钢京唐联合有限责任公司技术中心,河北唐山063200

出　　处：《电镀与涂饰》2023年第5期27-32,共6页Electroplating & Finishing

摘　　要：采用扫描电镜(SEM)、扫描探针显微镜(SPM)和X射线衍射仪(XRD)分析了热浸镀Zn5.5Al2.5Mg合金镀层的微观结构和成分,并通过Pandat软件分析了Zn5.5Al2.5Mg镀层凝固过程中各相变点和相组成。结果表明,Zn5.5Al2.5Mg合金镀层由两种雪花状组织、嵌套型六边形组织及片层状三元共晶组织构成。The microstructure and composition of hot-dip Zn5.5Al2.5Mg alloy coating were analyzed by scanning electron microscopy(SEM),scanning probe microscopy(SPM),and X-ray diffraction(XRD).The phase transformation and fractions of different phases during the solidification of Zn5.5Al2.5Mg alloy coating were analyzed by using the Pandat software.The results showed that the Zn5.5Al2.5Mg alloy coating consists of two types of snowflake-like structures,nested hexagonal structure,and lamellar ternary eutectic structure.

关 键 词：热浸镀 锌铝镁合金 组织结构 凝固 相 

分 类 号：TQ153.2[化学工程—电化学工业]