Measurement of as-cast residual stresses in an aluminium alloy AA6063 billet using neutron diffraction

Machining and sawing Aluminium DC cast products without a stress relief treatment can lead to uncontrolled distortion, crack formation, and significant safety concerns due to the presence of thermally-induced residual stresses created during casting. Numerical models have been developed to compute these residual stresses and yet have only been validated against measured surface distortions. In the present contribution, the variation in residual …