Investigation of the mechanical properties of the diffusion welded copper wires stacked in the same direction

YASAN Ö. B., ÖZDEN S., NAİR F.

Journal of Mechanical Science and Technology, cilt.37, sa.1, ss.127-137, 2023 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 37 Sayı: 1
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1007/s12206-022-1213-4
  • Dergi Adı: Journal of Mechanical Science and Technology
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.127-137
  • Anahtar Kelimeler: Diffusion bonding, Copper-copper bonding, Hot diffusion welding, Mechanical properties, Scanning electron microscopy
  • Erciyes Üniversitesi Adresli: Evet

Özet

© 2023, The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature.This study is made to obtain controllable and improved microstructural properties of a material obtained by stacking copper wires and then combining them with hot diffusion welding. The mechanical performance of the new approach to obtain a copper billet was assessed and accordingly the diffusion welding parameters were optimized. Samples with a dimension of 60×40×5 mm were produced by stacking. Copper wires with different diameters were stacked in the same direction and welded with hot diffusion welding under 69.5-139-208.5 MPa pressures, for 20-60-90 minutes, at 600 °C. Strength of the bonding was tested by bending and microhardness tests. In addition, the diffusion interface was examined by optical microscope and SEM. The interfacial bond strength after welding increased with temperature, pressure and time. Especially, the increase in diffusion time actuated the formation of common grains in the fusion area by decreasing or completely eliminating the interfaces of the wires.