Evolution of Microstructure and CrystallographicTexture during Thermo-Mechanical Processing by Warm-rollingIn A Duplex Stainless Steel

Thermo-mechanical processing of materials involving heavy deformation and annealing results in the development of characteristic microstructure and crystallographic texture which greatly affect their properties. As a result, the development of microstructure and texture during thermo-mechanical processing has been intensely investigated in a range of materials including single phase metals and alloys, two phase materials and intermetallic alloys. However, the development of microstructure and texture in duplex alloys where both the phases have polycrystalline grain structure, such as, (α+β) brass and (ferrite+austenite) duplex stainless steels (DSS) has received far less attention. Since these alloys constitute an important class of structural materials adequate understanding of microstructure and texture formation in these alloys will be key to enhance their properties for a wide range of applications.