چکیده مقاله
In this research, the ultrafine grained UFG composite of AA2024 and AA5083 aluminum alloys was made by accumulative roll bonding ARB process and butt welded by friction stir welding Friction stir welding FSW is the best method for the joining of UFG strips Microstructural investigations were performed by optical microscope and transmission electron microscope in the stir zone SZ , thermo mechanically affected zone TMAZ and heat affected zone HAZ The fine recrystallized structure was determined in the weldment The high strength of the weld was due to the strengthening mechanisms of grain boundaries, nano meter size precipitates and solid solution strengthening, so that the homogenous distribution of precipitates caused very good ductility in FSWed strips The high hardness of the SZ was caused by the formation of new equiaxed grains and fine precipitates, and also the decrease in the hardness of the HAZ was due to the dissolution and coarsening of T phase precipitates
کلیدواژهها
نویسندگان
Saeid Sajjadi Nikoo
Faculty of Materials and Metallurgical Engineering, Semnan University, Semnan, Iran
Fathallah Qods
Associate Professor, Faculty of Materials and Metallurgical Engineering, Semnan University, Semnan, Iran;
Mohammad Yousefieh
Assistant Professor, Faculty of Materials and Metallurgical Engineering, Semnan University, Semnan, Iran
شیوه ارجاع
Sajjadi Nikoo, Saeid and Qods, Fathallah and Yousefieh, Mohammad,1403,Microstructure evaluation and mechanical properties of friction stir welding of accumulative roll bonded AA2024/AA5083 composite strips,7th International Conference on Welding and Non Destructive Testing & 25th National Conference on Welding & Inspection & 14th National Conference on NDT & 3nd National Conference on Additive Manufacturing,Tehran
ارائهشده در
مجموعه مقالات هفتمین کنفرانس بین المللی جوشکاری وغیرمخرب، بیست و پنجمین کنفرانس ملی جوش و بازرسی، چهاردهمین کنفرانس ملی آزمایش های غیرمخرب و سومین کنفرانس ملی ساخت افزایشی1 اسفند 1403 · تهران