Microstructure and Mechanical Property of Strip in Fe–23Mn–3Si–3Al TWIP Steel by Twin Roll Casting

• DOI: 10.2355/isijinternational.49.1340
• Publication Date: 2009-09-18T10:40:28Z
• Authors: S. H. Wang; Z. Y. Liu; W. N. Zhang; G. D. Wang; J. L. Liu; G. F. Liang
• Keywords: Twip; Elongation; Ductility (Earth science); Strip steel

Strip in TWIP steel with the composition of Fe–23Mn–3Si–3Al fabricated by twin-roll strip casting was investigated. Large edge cracks, which were prone to occur hot rolled steels, avoided using casting. The cold and annealed exhibited a reasonably good combination strength ductility after annealing at 1373 K for 20 min, tensile elongation being 655 MPa 57.4%, respectively, cast 80% that conventional processed counterpart. Fine grain structure formed increased critical resolved shear stress (CRSS) twinning suppressed generation deformation twins during plastic make less contribution total elongation.