Paper Title:
A Study of Residual Stresses in Al/SiCp Linear Friction Weldment by Energy-Dispersive Neutron Diffraction
  Abstract

Linear friction welding (LFW) is a solid state joining process for bonding of two flatedged, 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.

  Info
Periodical
Key Engineering Materials (Volumes 385-387)
Edited by
H.S. Lee, I.S. Yoon and M.H. Aliabadi
Pages
517-520
DOI
10.4028/www.scientific.net/KEM.385-387.517
Citation
T. S. Jun, F. Rotundo, L. Ceschini, A. M. Korsunsky, "A Study of Residual Stresses in Al/SiCp Linear Friction Weldment by Energy-Dispersive Neutron Diffraction", Key Engineering Materials, Vols. 385-387, pp. 517-520, 2008
Online since
July 2008
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$32.00
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