Control of Formation of Intermetallic Compound in Dissimilar Joints Aluminum-steel
محل انتشار: ماهنامه بین المللی مهندسی، دوره: 32، شماره: 1
سال انتشار: 1397
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 290
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شناسه ملی سند علمی:
JR_IJE-32-1_017
تاریخ نمایه سازی: 10 آذر 1398
چکیده مقاله:
The elimination of the FexAly type phases was considered the solution to low ductility presented in aluminum-steel welded joints. Recently, the researches do not seek the suppression but the control of the thickness of these compounds. In this work, Al-Fe joints were manufactured by solid state and fusion welding, looking for controlling the formation of intermetallic compounds. Temperature measurements were carried out during the welding. The joints interface was characterized using optical and scanning electronic microscopy, aided by chemical composition measures with X-EDS. The microstructural characterization at the interface of aluminum-steel joints, in solid state welded joints, demonstrated the absence of intermetallic compounds, which is attributed to the low temperature reached during the process - less than 300 ° C. In the case of fusion joints, it has observed the permanent formation of intermetallic compounds whose thickness varies significantly with the heat input.
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نویسندگان
O. D. Hincapié
Department of Mechanical Engineering, Research Group – GEA, Universidad de Antioquia, Medellín, Colombia
J. A. Salazar
Department of Mechanical Engineering, Research Group – GEA, Universidad de Antioquia, Medellín, Colombia
J. J. Restrepo
Department of Mechanical Engineering, Research Group – GEA, Universidad de Antioquia, Medellín, Colombia
E. A. Torres
Department of Mechanical Engineering, Research Group – GEA, Universidad de Antioquia, Medellín, Colombia