The superalloy GH742y prepared by spray forming were forged with forging ratio 45% by 1 250 t water press after HIP-ed.

• 用喷射沉形工艺制备的GH742y合金沉积坯,经过热等静压,在1 250 t水压机上进行变形量为45%25的镦饼成形。