کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
8044086 1518916 2018 5 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Study on microstructure and performance of molybdenum joint welded by electron beam
ترجمه فارسی عنوان
بررسی ریزساختار و عملکرد مشترک مولیبدن جوش داده شده توسط پرتو الکترونی
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موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
چکیده انگلیسی
Electron beam welding of molybdenum was studied in this paper. The microstructures, mechanical properties and defects of the joints were analyzed. The results showed that the average hardness of the weld was 210 HV, while that of in heat affected zone was 202 HV, which was higher than base metal. The even tensile strength of the joints was 280 MPa, and the fracture position was located in the weld, which was brittle fracture. It were determined as quasi-cleavage fracture. Pore and crack defects were observed in the weld zone. The pores formed by the oxygen which was not escaping from the molten pool. Cracks were confirmed as solidification cracks and low plastic embrittlement cracks.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vacuum - Volume 154, August 2018, Pages 1-5
نویسندگان
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