A study of residual stresses in AI/SiCp linear friction weldment by energy-dispersive neutron diffraction

Tea Sung Jun, Fabio Rotundo, Lorella Ceschini, Alexander M. Korsunsky

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Linear friction welding (LFW) is a solid state joining process for bonding of two flat-edged, complex geometry components through relative reciprocating motion under axial (compressive) forces. Although the proof of principle has been obtained some time ago, recently a number of studies have been published aimed at optimising the joining operations to obtain best joint strength and reduced distortion and residual stress. The present paper is devoted to the study of linear friction welds between components made from aluminium alloy 2124 matrix composite (AMC) reinforced with 25vol% particulate silicon carbide (SiCp). Neutron diffraction was used to measure interplanar lattice spacings in the matrix and reinforcement, and to deduce residual elastic strains and stresses as a function of distance from the bond line. Significant asymmetry is observed in the residual stress distribution within the two components being joined, that may be associated with the difference in the microstructure and texture.

Original languageEnglish
Pages (from-to)517-520
Number of pages4
JournalKey Engineering Materials
Volume385-387
Publication statusPublished - 2008
Externally publishedYes

Keywords

  • Eigenstrain
  • Linear friction welding
  • Metal matrix composite
  • Neutron diffraction
  • Residual stress

Fingerprint

Dive into the research topics of 'A study of residual stresses in AI/SiCp linear friction weldment by energy-dispersive neutron diffraction'. Together they form a unique fingerprint.

Cite this