Recent Developments in Mechanical Alloying

Abstract

The mechanical alloying (MA) process was developed in the mid-1960s and has evolved to commercial status with the production of oxide dispersion strengthened INCONEL® and INCOLOY® 1 MA alloys. These Ni- and Fe-based alloys possess exceptional high temperature strength, high temperature stability, and hot corrosion resistance, and are specified for severe operating environments. In continuing efforts to exploit this technology, both process and product development programs are being conducted. Alloy development programs include specialized Ni- and Fe-based alloys, intermetallics, and high temperature oxide superconductors. Process development programs are focused on the production of sheet, plate, and larger cross-sectional area products. The MA process is described with an emphasis on existing and future alloys, products, and developments.