چکیده مقاله
In this study, the formation of brittle intermetallic compounds in over lap joints of 1100 aluminum and low carbon galvanized steel made by Gas Tungsten arc welding method was investigated The welding process was simulated by finite element method and temperature histories during the welding process were derived from it The Gibbs free energy of Fe Al and Fe Zn intermetallic phases were calculated and their formation was predicted by means of thermodynamic modeling The growth behavior of IMCs at the interface of the joint was studied through optical and scanning electron microscopy and energy dispersive X ray spectroscopy A relation was provided to predict the thickness of the formed compounds at the interface The modeling results revealed the formation of FeAl3 and Fe2Al5 compounds, which were consistent with the experimental results Studying the compounds growth behavior proved that the zinc coating on galvanized steel can act as an interlayer to delay and limit the growth of intermetallic compounds at the interface The thickness of the intermetallic layer in samples welded with 100A and 110A currents were 6 2 and 10 2 μm, respectively, which was reduced by an average of 70% compared to the conditions without the presence of the zinc interlayer
کلیدواژهها
نویسندگان
Emad Cheraghi Rizi
PhD Student, Department of Materials and Metallurgical Engineering, Amirkabir University of Technology
Eslam Ranjbarnodeh
Assistant Professor, Department of Materials and Metallurgical Engineering, Amirkabir University of Technology
Seyyed Ehsan Mirsalehi
Associate Professor, Department of Materials and Metallurgical Engineering, Amirkabir University of Technology
شیوه ارجاع
Cheraghi Rizi, Emad and Ranjbarnodeh, Eslam and Mirsalehi, Seyyed Ehsan,1400,Predicting the Quantity and Type of Intermetallic Phases in Aluminum – Steel Dissimilar Joints Produced by Zinc Interlayer,4th International Conference on Welding and Non Destructive Testing & 22nd National Conference on Welding & Inspection & 11th National Conference on NDT,Isfahan
ارائهشده در
مجموعه مقالات چهارمین کنفرانس بین المللی جوشکاری و آزمایش های غیرمخرب و بیست و دومین کنفرانس ملی جوش و بازرسی و یازدهمین کنفرانس ملی آزمایش های غیرمخرب18 اسفند 1400 · اصفهان