Results 61 to 70 of about 387 (175)

Austempering Post‐Intercritical Austenitizing to Enhance Mechanical Properties of an Oil Country Tubular Goods Steel

steel research international, Volume 96, Issue 12, Page 211-227, December 2025.
A new austempering approach following intercritical austenitizing is explored to improve the mechanical behavior of API 5CT steel. By tailoring ferrite–bainite microstructures, the process achieves a balance of strength and ductility without the need for post‐quench tempering. The results highlight a cost‐effective alternative to conventional quenching
Paulo Henrique Cirilo, Paulo Sérgio Moreira, Geraldo Lúcio de Faria   +2 more
wiley   +1 more source

Effect of Microstructure on Stress Dependence of Transformation Induced Plasticity in TRIP800 Low-alloy Multiphase Steels

Iranian Journal of Materials Science and Engineering, 2020
An experimental–numerical methodology was used in order to study the microstructural effects on stress state dependency of martensitic transformation kinetics in two different TRIP800 low alloy multiphase steels.
F. Hosseinabadi, A. Rezaee-Bazzaz, M. Mazinani, B. Mohammad Sadeghi   +3 more
doaj  

Continuous Cooling Transformation (CCT) Diagrams Of Carbidic Nodular Cast Iron

Archives of Metallurgy and Materials, 2015
This work presents continuous cooling transformation diagrams for different kinds of carbidic nodular cast iron. We investigated the cast iron, chemical composition of which in nodular cast iron allows the obtainment of a metal matrix which consists of ...
Gumienny G., Giętka T.
doaj   +1 more source

Thermomechanical Processing, Microstructure, and Mechanical Properties of Medium‐Mn Steel

steel research international, Volume 96, Issue 12, Page 252-260, December 2025.
The microstructure evolution and mechanical properties of a medium‐Mn steel are investigated after thermomechanical processing and isothermal holding at various temperatures. A fine multiphase structure of bainite, fresh or tempered martensite, and retained austenite are obtained.
Burak Barutçuoğlu, Özge Ararat, Ersoy Erişir, Serkan Oktay   +3 more
wiley   +1 more source

High‐throughput investigation of processing–microstructure relation in quenching and partitioning steels via gradient heat treatment and rapid characterization

Materials Genome Engineering Advances, Volume 3, Issue 3, September 2025.
This study proposes a novel high‐throughput experimental method integrating gradient heat treatment and advanced characterization techniques. This method can efficiently establish the processing–microstructure relation in quenching and partitioning steels. As quenching temperature decreases, the fraction of retained austenite initially increases due to
Daicheng Lin, Yizhuang Li, Yibo Zhang, Dong Ma, Wei Xu, Zhiyuan Liang   +5 more
wiley   +1 more source

Impact of Partitioning Temperature Parameters during the Quenching and Partitioning Process on Medium Carbon Steels with Two Different Alloying Strategies

steel research international, Volume 96, Issue 6, June 2025.
The study investigates microstructural evolution during high‐temperature partitioning in medium‐carbon, high‐silicon aluminum‐aided steels, exploring phase transformations affecting the final microstructure. Quenching and partitioning processes, with varying primary martensite fractions, reveal significant austenite stabilization at 350 °C, but ...
Mattia Franceschi, Giulia Stornelli, Roberto Perrone, Luca Pezzato, Andrea Di Schino, Manuele Dabalà   +5 more
wiley   +1 more source

Effects of ausforming temperature on bainite transformation kinetics, microstructures and mechanical properties in ultra-fine bainitic steel

Journal of Materials Research and Technology, 2020
The effects of ausforming temperature on bainite transformation kinetic and plastic deformation mechanism were evaluated by thermal simulation method and warm rolling process. Results showed that entire process of bainite transformation austempered at 300 °C was notably accelerated by ausforming due to the increased nucleation sites, and by diminishing
Hui Guo, Xianying Feng, Aimin Zhao, Qiang Li, Mengjiang Chai   +4 more
openaire   +2 more sources

Automated Workflow for Phase‐Field Simulations: Unveiling the Impact of Heat‐Treatment Parameters on Bainitic Microstructure in Steel

Advanced Engineering Materials, Volume 27, Issue 8, April 2025.
In this study, OpenPhase software is used to simulate low‐carbon bainitic steels. The lower holding temperature sample exhibits smaller and finer grains. Grain thickness measurements of bainitic ferrite from simulations align with the experimental observations at high temperature. Bainitic steels are extensively utilized across various sectors, such as
Dhanunjaya K. Nerella, Muhammad Adil Ali, Hesham Salama, Oguz Gulbay, Marc Ackermann, Oleg Shchyglo, Ulrich Krupp, Ingo Steinbach   +7 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. Here, using the theory of generalized stability (GS), we theoretically and experimentally correlate the bainitic transformation ...
Yiyang Zhang, Linke Huang, Kexing Song, Feng Liu   +3 more
openaire   +2 more sources

Austenite-Bainite Transformation Kinetics in Austempered AISI 5160 Steel

European Scientific Journal, ESJ, 2018
This research investigates the process of the formation of bainite in austempered 5160 steel. Steel bar samples were austenitized at 1128 K for 20 minutes followed by holding at various times from 10 seconds to 2 hours and isothermal temperatures from 561K to 728K to obtain a multi-phase matrix.
Xue Han, Gary Barber, Zhenpu Zhang, Bingxu Wang, Jian Zhu, Jing Shi, Xichen Sun   +6 more
openaire   +2 more sources