Results 151 to 160 of about 468,515 (221)

Enhanced mechanical properties of dual phase steel via cross rolling and intercritical annealing

Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2021
Cross rolling followed by intercritical annealing was proposed as an alternative route for processing of dual phase (DP) steels, which led to fine recrystallized ferrite grain size and uniformly distributed martensite islands.
Hamed Mirzadeh, Maryam Soleimani
exaly   +2 more sources

Partitioning of C and Mn During Intercritical Annealing and Transformation of Retained Austenite During Deformation in Medium Mn Steel

Steel Research International, 2023
Herein, high‐strength medium Mn steel is obtained by intercritical annealing and quenching processes. Experimental steel with a chemical composition of Fe–0.2C–8.0Mn–1.6Si–1.3Al (wt%) is treated.
Geng Tian, Zhen Li, Shun Yao, Rongjian Qie, Yifu Cui, A. Zhao   +5 more
semanticscholar   +1 more source

Austenite formation during intercritical annealing

Metallurgical and Materials Transactions A, 2004
A systematic experimental study has been conducted on ferrite recrystallization and intercritical austenite formation for two low-carbon steels with chemical compositions typically used for dual-phase and transformation-induced plasticity (TRIP) steels.
J. Huang, W. J. Poole, M. Militzer
openaire   +1 more source

Effect of Intercritical Annealing Time on the Microstructure and Mechanical Properties of Dual‐Phase Steel Processed by Large‐Strain Asymmetric Cold‐Rolling

Steel Research International, 2023
Herein, the effect of intercritical annealing time on the microstructure and mechanical properties of dual‐phase steel processed by large‐strain asymmetric cold‐rolling is studied.
F. Khorasani, Roohollah Jamaati, Hamed Jamshidi Aval   +2 more
semanticscholar   +1 more source

Recrystallisation at Intercritical Annealing in Low Carbon Steels

Materials Science Forum, 2007
Subgrain growth in deformed ferrite and incomplete recrystallisation during intercritical annealing in low carbon (LC) steels was investigated by EBSD and FEGTEM/EDS. It was confirmed that fine dual phase (α+γ) microstructures could be obtained even without the addition of microalloying elements such as Nb and Ti, if the steels were heated above Ac1 ...
Naoki Maruyama, T. Ogawa, M. Takahashi
openaire   +1 more source

Effect of Mn-Enriched Cementite on Austenite Formation During Intercritical Annealing

International Symposium on New Developments in Advanced High-Strength Sheet Steels, 2023
Intercritical annealing (IA) heat treatments are implemented to a variety of steels with the general intent to form austenite and generate composite final microstructures. The austenite may or may not be retained upon cooling from IA.
D. Matlock, E. De Moor, J. Speer, J. Mueller   +3 more
semanticscholar   +1 more source

Retained austenite in intercritically annealed HSLA steel

Metallography, 1987
Abstract The effects of processing parameters on austenite retention in intercritically annealed HSLA steels have been investigated. Low-temperature tempering was found to be necessary for successful tint etch of high-carbon martensite in dual-phase structure with sodium metabisulfite.
Q.Y. Long, D. Tseng, K. Tangri
openaire   +1 more source

Microstructure and mechanical properties of medium manganese steel in intercritical annealing

Materials Science and Technology, 2023
A new type of cold-rolled medium manganese steel was investigated. The test steel was treated by Q&P process. With the increase in annealing temperature, the grain size gradually increases, the carbides dissolve progressively and the fine lath grains transform into massive or equiaxed grains.
Yan Feng, Cainian Jing, Tao Lin, Zhonglin Wu, Zhaotong Li, Jingrui Zhao   +5 more
openaire   +1 more source

Benefits of Intercritical Annealing in Quenching and Partitioning Steel

Metallurgical and Materials Transactions A, 2018
Compared to the quenching and partitioning (Q&P) steel produced by full austenization annealing, the Q&P steel produced by the intercritical annealing shows a similar ultimate tensile stress but a larger tensile ductility. This property is attributable to the higher volume fraction and the better mechanical stability of the retained austenite after the
X. Wang, L. Liu, R. D. Liu, M. X. Huang
openaire   +1 more source

Ferrite-Martensite Band Formation During the Intercritical Annealing

Journal of Materials Engineering and Performance, 2015
Microstructural evolution during the intercritical annealing at 740 and 770 °C for 120-900 s in a low-carbon low-alloy steel from the initial martensitic matrix was studied by electron microscopy equipped with energy dispersive x-ray spectroscopy and x-ray diffraction.
S. A. Etesami, M. H. Enayati
openaire   +1 more source