Volume changes, warping, and residual stresses in beryllium bronze during heat treatment

Conclusions

• 1. As the result of decomposition of the α solid solution at elevated temperatures or under isothermal conditions there is a nonmonotonic change in the volume of beryllium bronze BrBNT1.9Mg. Depending on the degree and character of decomposition of the α solid solution after aging, residual stresses differing in sign and level occur.

• 2. Warping of beryllium bronze is greatly affected by the original structure and the stresses. With increasing rolling reductions during cold rolling of quenched beryllium bronze the warping after aging decreases.