Abstract

Transformation-induced plasticity (TRIP) steels undergo martensitic phase transformations due to their austenite phase. In this study, using 1-mm-thick TRIP steel at room temperature, the phase transformation behaviors under tensile and compressive modes were measured using a ferrite scope based on the detection of the magnetic volume. A strength differential (SD) effect was observed, where the tensile strength was lower than the compressive strength. The rate of tensile transformation was faster than that of compressive transformation. To account for the SD effect in finite element analysis, a martensitic kinetics-based constitutive model was developed, which was decomposed into elastic, plastic, Bain, and transformational parts. A larger transformational strain was generated in the tensile mode, and the asymmetric SD effect was captured well by the proposed model.

Full Text

Published Version

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.