Results 41 to 50 of about 876 (172)

The role of plastic strains on variant selection in ausformed bainitic microstructures studied by finite elements and crystal plasticity simulations

Journal of Materials Research and Technology, 2021
The mechanisms driving variant selection phenomena in ausformed bainitic microstructures are not fully controlled yet. Previous results are not congruent among them, as they cannot be explained by the same rule.
Adriana Eres-Castellanos, Javier Hidalgo, Lucia Morales-Rivas, Francisca G. Caballero, Carlos Garcia-Mateo   +4 more
doaj   +1 more source

Influence de traitements thermo-mécaniques sur les performances en fluage et en fatigue d'aciers martensitiques à 9% Cr [PDF]

, 2010
National audienceLe développement des réacteurs nucléaires de génération IV et des réacteurs à fusion nucléaire requiert l'utilisation de matériaux possédant de bonnes propriétés mécaniques au-delà de 550 °C.
Caes, C., Fournier, Benjamin, Hollner, S., Le Pendu, J., Pineau, André, Tournié, Ivan   +5 more
core   +5 more sources

The Effect of Modified Ausforming on Spring Steel

Transactions of Japan Society of Spring Engineers, 1977
Masashi Komatsu
openaire   +3 more sources

Microstructural evolution during tempering of an ausformed carbide-free low temperature bainitic steel

Materials & Design, 2021
The influence of tempering at 400 and 500 °C on two bainitic ferrite microstructures obtained via pure isothermal transformation and ausforming followed by the isothermal transformation was studied in a medium C-Si rich bainitic steel.
M. Zorgani, C. Garcia-Mateo, M. Jahazi
doaj   +1 more source

Conditions for the occurrence of acicular ferrite transformation in HSLA steels [PDF]

, 2017
For the class of steels collectively known as high strength low alloy (HSLA), an acicular ferrite (AF) microstructure produces an excellent combination of strength and toughness.
A Lambert-Perlade, A Taylor, B. P. Wynne, C Chiou, C Liu, C Shang, CL Magee, D Bai, D Hughes, D Hughes, DG Stalheim, E. J. Palmiere, ES Machlin, F Xiao, F Xiao, G Miyamoto, G Olson, GB Olson, H Bhadeshia, H Fang, H Kawata, H Kitahara, H Zhao, H Zhao, H Zhao, H. Zhao, HK Yeddu, HKDH Bhadeshia, I Yakubtsov, J Christian, J Yang, JL Lee, JW Brooks, K Fujiwara, K Shibata, K Zhu, L Collins, L Lan, L Malet, L Sun, M Díaz-Fuentes, M Pontremoli, M Smirnov, M Suezawa, M Zhao, M Zhao, MC Zhao, N Takayama, NY Zolotarevskii, P Cizek, P Shipway, P Shipway, PG Shewmon, R Cryderman, R Larn, RH Larn, RWK Honeycombe, S Babu, S Chatterjee, S Kim, S Singh, S Yamamoto, SL Shrestha, T Araki, T Araki, T Furuhara, T Shigeta, V Tari, W Wang, W Zhang, WC Leslie, Y Zhong, YM Kim, YM Kim, Z Tang   +74 more
core   +2 more sources

Development of cost-effective nano-bainitic steels [PDF]

, 2022
The aim of this work is the development of low-cost, fast transforming nano-bainitic steel alloys for the purposes of lightweighting and fuel efficiency in the transportation industry.
Abdelaziz, Mohamad Akram Awad
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

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

Numerical and experimental study on thermo-mechanical processing of medium-carbon steels at low temperatures for achieving ultrafine-structured bainite [PDF]

, 2021
A combination of experimental and numerical approaches was applied for constructing a dynamic model for thermomechanical processing, which was used for simulating laboratory rolling and cooling, and for designing a cooling path to enable phase ...
Ilmola, Joonas, Javaheri, Vahid, Kaikkonen, Pentti, Manninen, Timo, Pohjonen, Aarne, Seppälä, Oskari, Somani, Mahesh   +6 more
core   +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