The diffusion welding of 7075Al-3%SiC particles reinforced composites


Aydin M., Guerler R., Tuerker M.

PHYSICS OF METALS AND METALLOGRAPHY, vol.107, no.2, pp.206-210, 2009 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 107 Issue: 2
  • Publication Date: 2009
  • Doi Number: 10.1134/s0031918x09020136
  • Title of Journal : PHYSICS OF METALS AND METALLOGRAPHY
  • Page Numbers: pp.206-210

Abstract

A group of 3% SiC particle reinforced Al-7075 alloys was diffusion joined at 560A degrees C between 1 h and 2 h durations under 2 MPa applied pressure in a vacuum of 2 x 10(-3) Pa. Optical microscopy and SEM-EDS studies were used to characterise the weldment and the fracture surfaces of all samples investigated. A non-planar interface formation was observed at the bond interface. The maximum shear strength of 137 MPa was obtained with the composite 7075-3% SiC joined for two hours, which is 92% of the shear strength of the parent material. The fracture surface of the 7075-3% SiC composites displayed a non-planar fracture surfaces with some plastic deformation.