Strain hardening behaviour and temperature effect on Al-2124/SiCp

An understanding of the strain hardening behaviour of discontinued reinforced aluminium alloys is essential in optimising the parameters for deformation processes of these materials. The 2124 aluminium alloy reinforced with SiC particles has been studied in T4 condition in order to determine the stress–strain response at different temperatures. The strain hardening exponent, n, decreases with the temperature. A non-linear value of the exponent n with the strain has been observed, and two regions are clearly characterised for each temperature.