Phase Stresses in Al/SiC p Metal Matrix Composite Determined by Modelling and Neutron Diffraction

Abstract

Neutron diffraction was used to measure the lattice strains in Al/SiC_p metal matrix composite under an external load applied while the sample was in situ in the neutron beam. The evolution of the internal stresses and of the critical resolved shear stress during bending were predicted by elastoplastic models. Calculations based on these models were verified by comparison with the results of the diffraction experiment.

Keywords

Neutron diffraction Elasto-plastic self-consistent model Metal matrix composite Stress homogeneity

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