Results 41 to 50 of about 645 (118)

Understanding and improving thermodynamic stability of austenite in low carbon carbide free bainitic steels via ausforming process

, 2023
Carbide-free bainitic (CFB) steel has become a new forefront of advanced high-strength steels owing to their outstanding balance in mechanical properties.
Kumnorkaew, Theerawat
core   +1 more source

Assessing the scale contributing factors of three carbide-free bainitic steels: A complementary theoretical and experimental approach

Materials & Design, 2021
The bainitic ferrite plate thickness is the main parameter that controls the strength of this type of microstructures. Such thickness has been proved to mainly depend on the austenite yield strength, the driving force for the transformation and the ...
Adriana Eres-Castellanos, Javier Hidalgo, Muftah Zorgani, Mohammad Jahazi, Isaac Toda-Caraballo, Francisca G. Caballero, Carlos Garcia-Mateo   +6 more
doaj   +1 more source

Texture Development in Ausformed Righ Strength Steels

, 1991
Texture, Stress, and Microstructure, Volume 14, Issue 1, Page 493-500, 1991.
C. S. da Costa Viana
wiley   +1 more source

Effect of ausforming on isothermal transformation below the martensite start temperature in NiCrMoV steel: an in-situ neutron diffraction study

Microstructures
In-situ neutron diffraction during the thermomechanical controlled processing was employed to investigate the effect of ausforming on isothermal transformation below the martensite start temperature (Ms) in the NiCrMoV steel.
Wu Gong, S. Harjo, T. Kawasaki, Takayuki Yamashita, A. Shibata, T. Shinozaki, Y. Tomota, Nobuhiro Tsuji   +7 more
semanticscholar   +1 more source

Ausforming of medium carbon steel

, 2019
The prospect of enhancing the hardness of low alloy steel for the manufacture of fasteners is examined using ausforming, in which the austenite is deformed rapidly at a low temperature to increase its dislocation density before quenching in order to ...
Jung, GS, Bae, CM, Suh, DW, Bhadeshia, HKDH, Seo, SW, Lee, JS   +5 more
core   +1 more source

Flow Stress Behaviour and Static Recrystallization Characteristics of Hot Deformed Austenite in Microalloyed Medium-Carbon Bainitic Steels

Metals, 2021
In the past decade, efforts have been focused on developing very fine, medium-carbon bainitic steels via the low-temperature (typically 300–400 °C) ausforming process, which not only enables shorter isothermal holding times for bainitic transformation at
Pentti M. Kaikkonen, Mahesh C. Somani, Leo Pentti Karjalainen, Jukka I. Kömi   +3 more
doaj   +1 more source

New insights into the effects of deformation below-MS on isothermal kinetics of bainitic transformation

Journal of Materials Research and Technology, 2020
Both ausforming and austempering below the martensite start temperature (MS) have been shown to accelerate the bainitic transformation. This work investigates the combined effects of deformation and austempering below the MS on the isothermal ...
Haijiang Hu, Junyu Tian, Guang Xu, Hatem S. Zurob   +3 more
doaj   +1 more source

Transferring Nanoscale Bainite Concept to Lower C Contents: A Perspective

Metals, 2017
The major strengthening mechanisms in bainitic steels arise from the bainitic ferrite plate thickness rather than the length, which primarily determines the mean free slip distance.
Carlos Garcia-Mateo, Georg Paul, Mahesh C. Somani, David A. Porter, Lieven Bracke, Andreas Latz, Carlos Garcia De Andres, Francisca G. Caballero   +7 more
doaj   +1 more source

Influence of Ausforming Treatment of 0.4wt%C Steel Modified With Nb on the Microstructure and Hardness Properties

Tikrit Journal of Engineering Sciences, 2012
In the present work the relationship between the microstructure and the hardness of the Steel both with and without an addition of niobium was studied. Investigation by direct observation using optical microscopy was carried out. The purpose of this work
Hiam Razzak Kadhum
doaj   +1 more source

Effect of ausforming on the microstructure and transformation kinetics of a medium carbon carbide-free bainitic steel [PDF]

, 2021
High-strength steels, characterized by an excellent combination of mechanical properties, such as ductility and formability, with satisfactory weldability and cost, are in continuous demand in most industries, especially the automotive industry, where ...
Zorgani, Muftah
core   +1 more source