Abstract: A multiple stage method for plastic working of a blank, comprises applying a torsional loading to the blank at a first stage in multiple steps at loading conditions selected to effect microstructure transformation; and applying a tensile or compression loading at a second stage subsequent to the torsional loading stage. An article, comprises a hollow blank with a hollow core emplaced within the blank and expanded by pressurized fluid contained within the core interior and a sheath encompassing the blank in a blank to sheath contact along a blank lateral surface that prevents the sheath and blank from displacement relative to each other.