Results 51 to 60 of about 4,989 (222)

The Varying Effects of Uniaxial Compressive Stress on the Bainitic Transformation under Different Austenitization Temperatures

Metals, 2016
In this study, thermal simulation experiments under different austenitization temperatures and different stress states were conducted. High-temperature laser scanning confocal microscopy (LSCM), thermal dilatometry, and scanning electron microscope (SEM)
Mingxing Zhou, Guang Xu, Li Wang, Qing Yuan   +3 more
doaj   +1 more source

OIM analysis of microstructure and texture of a TRIP assisted steel after static and dynamic deformation [PDF]

, 2010
TRIP-assisted steel with a composition of 0.2%C, 1.6%Mn, 1.5%Al was studied in the undeformed state, after the application of 10 and 30 % static tensile strain parallel to rolling the direction of the sheet and after dynamic (Hopkinson) fracture test ...
Bouquerel, J., Houbaert, Y., Kestens, L., Petrov, R., Verbeken, K., Verleysen, P.   +5 more
core   +2 more sources

Micromechanical modeling of bainitic phase transformation [PDF]

PAMM, 2012
AbstractWe develop a micromechanical material model for phase transformation from austenite to bainite for a polycrystalline low alloys steel. In this material (e.g. 51CrV4) the phase changes from austenite to perlite‐ferrite, bainite or martensite, respectively.
Andreas Schneidt, Thomas Antretter, Rolf Mahnken   +2 more
openaire   +1 more source

Two‐Stage Isothermal Transformation of Austenite into Nanobainite in a Chemically Inhomogeneous Medium‐Alloy Steel Containing 0.5 wt% C

steel research international, EarlyView.
The effect of chemical inhomogeneity on the microstructure and properties of nanobainitic steel is investigated. A two‐stage isothermal heat treatment that produced a more uniform microstructure is designed. The first‐stage temperature is higher than the MS of depleted bands; conversely, the second‐stage temperature is lower than the first‐stage ...
Bogdan Garbarz, Jarosław Marcisz, Marek Jelec, Władysław Zalecki, Radosław Rozmus, Zofia Kania‐Pifczyk   +5 more
wiley   +1 more source

Thermo-kinetic understanding of the correlation between bainitic transformation and mechanical properties for bainitic steels

Journal of Materials Research and Technology
Phase transformations are feasible approaches for tailoring microstructures to achieve desired mechanical properties. However, the direct link between phase transformations and mechanical properties remains poorly studied.
Yiyang Zhang, Linke Huang, Kexing Song, Feng Liu   +3 more
doaj   +1 more source

Effect of tempering upon the tensile properties of a nanostructured bainitic steel [PDF]

, 2014
The tensile properties of a nanostructured carbide-free bainitic steel formed at 200–250 °C are compared against those after tempering sufficiently to remove the retained austenite.
Avettand-Fènoël, MN, Bhadeshia, HKDH, Hasan, HS, Peet, MJ   +3 more
core   +2 more sources

Phase Transformation Behavior of Continuously Cooled Fe–C–V–(Mo) Alloys

steel research international, EarlyView.
Additions of vanadium and molybdenum microalloying are shown to reshape phase transformations in clean low‐carbon steels. By tracking microstructural shifts during continuous cooling, the work uncovers the correlation between transformation kinetics, ferrite morphology, and hardness.
Anastasiya Tselikova, Jannik Zuraszek, Ulrich Krupp, Rolf Schmidt, Hardy Mohrbacher, Alexander Gramlich   +5 more
wiley   +1 more source

Improving Strength-Ductility via Short Austenitization in a Low-Carbon Carbide-Free Bainitic Steel

Crystals, 2022
The strength and ductility of low-carbon carbide-free bainitic (CFB) automotive steel are not good enough. In this study, a short austenitization (SA) process in conjunction with isothermal bainitic transformation was adopted to refine the bainitic ...
Jianhua Li, Peng Chen, Dapeng Yang, Hongshuang Di, Hongliang Yi   +4 more
doaj   +1 more source

Press Hardening for Sustainable Lightweight Chassis Design in Heavy‐Duty Vehicles: A Material Performance and Life Cycle Assessment Approach

steel research international, EarlyView.
The article explores how high‐strength steels and press hardening revolutionize lightweight chassis design for heavy‐duty vehicles. It reveals that press hardened steels combined with shot peening can cut weight by up to 34% and reduce environmental impact by 21%–32%.
Violeta Vargas‐Parra, Sergi Parareda, Jose Jorge Espí‐Gallart, Jaume Pujante, Gustaf Gustafsson, Henrik Sieurin, David Frómeta, Daniel Casellas   +7 more
wiley   +1 more source

Quantitative Assessment of the Time to End Bainitic Transformation

Metals, 2019
Low temperature bainite consists of an intimate mixture of bainitic ferrite and retained austenite, usually obtained by isothermal treatments at temperatures close to the martensite start temperature and below the bainite start temperature.
Miguel A. Santajuana, Adriana Eres-Castellanos, Victor Ruiz-Jimenez, Sebastien Allain, Guillaume Geandier, Francisca G. Caballero, Carlos Garcia-Mateo   +6 more
doaj   +1 more source