کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5016877 1466049 2017 37 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microstructure and mechanical characterization of continuous drive friction welded grade 2 seamless titanium tubes at different rotational speeds
ترجمه فارسی عنوان
ریز ساختار و ویژگی های مکانیکی لوله های تثبیت مداوم در اصطکاک جوشکاری درجه 2 لوله های تیتانیوم بدون درز در سرعت های مختلف چرخشی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی
Friction welding is a near ideal process to join thin metallic tubes. Grade 2 titanium tubes of outer diameter 60 mm and wall thickness 3.9 mm were joined by friction welding. The effect of rotational speed on microstructure was evaluated for five different speeds. The process parameters were recorded during welding. The microstructure was observed using optical microscopy and electron back scattered diagram. The results revealed that the rotational speed had a significant effect on the process parameters, microstructure and joint integrity. An increase in rotational speed reduced the torque and rate of frictional power input and extended the welding duration. The rate of deformation increased with rotational speed and refined the grains in the weld zone. The grain size was observed to coarsen from the center of the weld zone towards the flash. The grain structure in the heat affected zone (HAZ) was identical to the parent metal. A maximum joint efficiency of 98.3% was achieved at rotational speed of 2200 rpm. The details of microhardness, failure location and fracture surface were reported.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Pressure Vessels and Piping - Volume 154, July 2017, Pages 17-28
نویسندگان
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