Results 251 to 260 of about 168,832 (301)

Processing Strategies for Hot-Rolled Medium-Mn Steels

Materials Science Forum, 2021
The study aims at reviewing manufacturing schedules for hot-rolled and intercritically-annealed and thermomechanically processed medium-Mn sheet steels. Major differences between these two types of processing are indicated. They include initial microstructure (low-C martensite for hot-rolled products and deformed austenite for thermomechanically ...
Adam Grajcar, Skowronek Adam, Mateusz Morawiec   +2 more
openaire   +1 more source

Physical metallurgy of medium-Mn advanced high-strength steels

International Materials Reviews, 2023
Steels with medium manganese (Mn) content (3∼12 wt-%) have emerged as a new alloy class and received considerable attention during the last decade. The microstructure and mechanical response of such alloys show significant differences from those of established steel grades, especially pertaining to the microstructural variety that can be tuned and the
Binhan Sun, Alisson Kwiatkowski da Silva, Yuxiang Wu, Yan Ma, Hao Chen, Colin Scott, Dirk Ponge, Dierk Raabe   +7 more
openaire   +2 more sources

Medium-Mn Martensitic Steel Ductilized by Baking

Metallurgical and Materials Transactions A, 2019
In this study, the microstructure and mechanical properties, especially the impacts of low-temperature tempering, of the medium-Mn martensitic steel were examined. The low-temperature tempering simulated paint baking in car manufacturing. Significant improvement of tensile ductility was achieved by baking, associating with a change from brittle to ...
Q. Lu, M. Eizadjou, J. Wang, A. Ceguerra, S. Ringer, H. Zhan, L. Wang, Q. Lai   +7 more
openaire   +1 more source

Characterization of fracture in medium Mn steel

Materials Science and Engineering: A, 2017
Abstract In the present study, the damage mechanisms operating during the tensile deformation of intercritically annealed Fe-0.3%C-6.0%Mn-3%Al-1.5%Si medium Mn steel were investigated. The steel was annealed at different temperatures to obtain a range of strain hardening properties in uniaxial tension by activating the twinning-induced plasticity and
Hongki Choi, Seonjong Lee, Lee, J, BARLAT, FREDERIC GERARD, De Cooman, B.C.   +4 more
openaire   +2 more sources

Extraordinary Lüders-strain-rate in medium Mn steels

Materialia, 2019
Abstract An innovative experimental means based on high-speed digital image correlation (DIC) is employed in this work to investigate the Luders band formation mechanisms in a medium Mn transformation-induced plasticity (TRIP) steel, allowing precise assessment of local strain rate inside the Luders band. The stress-controlled instead of conventional
X.G. Wang, B.B. He, C.H. Liu, C. Jiang, M.X. Huang   +4 more
openaire   +1 more source

Genesis of plasticity-induced serrated metal flow in medium-Mn steel

Calphad, 2020
An excellent strength-ductility combination offered by martensite-austenite microstructure in medium-Mn steels draws special attention for automotive applications. However, yielding of the steel is often compromised in the form of serration, with a jerky metal flow and deformation banding, by the reason yet to be settled.
N. Bhowmik, S. Ghosh, S. Mandal, A. Haldar, P.P. Chattopadhyay   +4 more
openaire   +1 more source

Low-temperature superplasticity of Si-added medium-Mn steel

Materials Research Proceedings, 2023
Abstract. Grain boundary sliding, a deformation mechanism of superplasticity, occurs only at high temperatures, making it difficult for superplastic steels to be practically applied due to high energy consumption and surface oxidation. Therefore, in the present study, we introduce a newly developed Si-added medium-Mn steel, which can be ...
openaire   +1 more source

Impact Toughness of Medium‐Mn Transformation‐Induced Plasticity‐Aided Steels

steel research international, 2015
The impact toughness of 0.2% C–1.5% Si–(1.5–5.0)% Mn (mass%) transformation‐induced plasticity (TRIP)‐aided steels with bainitic ferrite and/or martensite structure matrices produced by isothermal transformation process is investigated for automotive body applications.
Koh‐ichi Sugimoto, Hikaru Tanino, Junya Kobayashi   +2 more
openaire   +1 more source

Chemistry and Properties of Medium-Mn Two-Stage TRIP Steels

Metallurgical and Materials Transactions A, 2018
Eight medium manganese steels ranging from 10 to 15 wt pct Mn have been produced with varying levels of aluminum, silicon, and carbon to create steels with varying TRIP (transformation-induced plasticity) character. Alloy chemistries were formulated to produce a range of intrinsic stacking fault energies (ISFE) from − 2.2 to 13.3 mJ/m2 when calculated ...
Field, Daniel M., Qing, Jingjing, Van Aken, David C.   +2 more
openaire   +1 more source