Deformation Lenses in a Bonding Zone of High-Alloyed Steel Laminates Manufactured by Cold Roll Bonding

The combination of strength transformation-induced plasticity (TRIP) steel and ductility twinning-induced (TWIP) can be achieved by manufacturing laminated composites via cold roll bonding (CRB). Work hardening the surface before CRB produces deformation lenses (DLs), which play significant role in bonding, but are reported rarely literature. present work aimed to study DLs at interface composite made high-alloy TRIP TWIP steels manufactured CRB. interfaces were investigated means scanning transmission electron microscopy, roughness measurement, tensile peel tests. Laminates showed ultimate up 900 MPa elongation 45% maintaining layer’s integrity failure. TWIP–TWIP has shown higher maximum (up 195 N/cm) than that a TRIP–TWIP 130 N/cm), was found direct proportion overall area DLs. Bonding laminate layers occur between DL fragments.