Thermomechanical ausforming technique for producing substitute ultra high strength steels

Abstract

THE most important high strength structural alloy used up to the present time is steel. Its easy availability and diverse properties have further added to its undis-putable choice for such applications. Other materials (Al & Ti based alloys ) which offer similar advantages have only limited applications. The demand for mater- ials with higher strength to weight ratios, has incre- ased considerably in past few years.This is evidenced by the increasing demands by the aircraft industry and space research programmes. Mobility, economy of weight and space and transportability provide further incent- ive for such highly improved mechanical properties. To effectively meet this situation considerable efforts are being made to till the need for improved ultra high strength steels.