Abstract
The results of heat treatment including quenching in water, uphill quenching (cooling to the liquid nitrogen temperature, holding at it and heating in hot mineral oil) and natural or artifi cial aging on hardness and corrosion properties of the wrought thermally hardening aluminium alloy D16 are presented. The effect of heat treatment on the residual stresses is studied by drilling method. The recommendations concerning the usage of this heat treatment to reduce residual stresses and warpage are given.
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