5083アルミニウム合金冷間圧延材のX線による残留応力分布の測定

Abstract

The effect of textures on the relations between the lattice strain and sin2ψ, observed in the cold rolled 5083 aluminum alloy, has been studied by referring to the values calculated basing upon the Reuss’s model. Generation mechanisms of the residual stresses during the cold rolling of the 5083 aluminum alloy were also discussed in connection with the existence of macroscopic and microscopic residual stresses. The results obtained in the present study are summarized as follows:(1) Nonlinear relations existed between the lattice strain and sin2ψ in the cold rolled 5083 aluminum alloy specimen. Linear relations, however, existed between the lattice strain generated per applied unit stress and sin2ψ. The measured values of the lattice strain corresponded with the values calculated on the basis of the Reuss’s model.(2) Macroscopic residual stresses, measured in the 30% cold-rolled specimen, were effected by microscopic residual stresses.