Toward Unraveling the Importance of Deformed Microstructure before TRIP Heat Treatment in Transformation‐Induced Plasticity Steels. Issue 5 (26th September 2016)

• Record Type: Journal Article
• Authors: Deldar, Saeed; Mirzadeh, Hamed; Parsa, Mohammad Habibi
• Is Part Of: Steel research international. Volume 88:Issue 5(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2016-09-26
• Subjects: TRIP‐assisted steels -- mechanical properties -- microstructure -- cold rolling -- annealing; Steel -- Periodicals; Steel -- Metallurgy -- Periodicals; 669.142
• DOI: 10.1002/srin.201600275
• Languages: English
• ISSNs: 1611-3683

Abstract

Abstract : The importance of deformed microstructure before transformation‐induced plasticity (TRIP) heat treatment in transformation‐induced plasticity steels was taken into account. The heavily cold‐rolled sheet was annealed at 650 °C for enough time to replace the deformed microstructure with a recrystallized one. It was revealed that the tensile strength, ductility, strain‐hardening capability, and TRIP effect are significantly impaired by the annealing of cold‐rolled sheets. This was explained based on the distribution of the retained austenite phase, strength of ferritic matrix, and the deformation‐induced martensitic transformation. Abstract : The tensile strength, ductility, strain‐hardening capability, and TRIP effect are found to be significantly impaired by the recrystallization annealing of cold‐rolled sheets. This is explained based on the distribution of the retained austenite phase, strength of ferritic matrix, and the deformation‐induced martensitic transformation.