Results 21 to 30 of about 2,269 (228)

Austenite formation from a steel microstructure containing martensite/austenite and bainite bands

Journal of Materials Research and Technology, 2023
In many commercial steel processing routes, steel microstructures are reverted to an austenitic condition prior to the final processing steps. Understanding the microstructure development during austenitization is crucial for improving the performance ...
J. Abraham Mathews, J. Sietsma, R.H. Petrov, M.J. Santofimia   +3 more
doaj   +1 more source

Thermal Stability of Retained Austenite and Properties of A Multi-Phase Low Alloy Steel

Metals, 2018
In this work, we elucidate the effects of tempering on the microstructure and properties in a low carbon low alloy steel, with particular emphasis on the thermal stability of retained austenite during high-temperature tempering at 500–700 °C ...
Zhenjia Xie, Lin Xiong, Gang Han, Xuelin Wang, Chengjia Shang   +4 more
doaj   +1 more source

Enabling bainitic transformation acceleration and mechanical properties improvement in ultrafine bainitic steel

Journal of Materials Research and Technology
A novel approach involving the fast heating of cold-rolled pearlite followed by low-temperature isothermal transformation (FBT) was devised to address the technical challenges of long processing times and strength-ductility trade-off in ultrafine ...
Hui Guo, Jianmin Su, Shaoguang Yang, Yipeng Lan, Zhenxi Jiang   +4 more
doaj   +1 more source

Investigation of Test Parameters on EBSD Analysis of Retained Austenite in TRIP and Pipeline Steels

Metals, 2019
In this article we discuss the effect of different test parameters on the analysis of retained austenite in TRIP590, TRIP780 and X90 steels, by means of Electron Backscattered Diffraction (EBSD) and X-ray Diffraction (XRD), respectively. By analyzing the
Yucheng Zhang, Ping Lai, Huiping Jia, Xinhua Ju, Guibin Cui   +4 more
doaj   +1 more source

Reduction of Retained Austenite in Tool Steels

Műszaki Tudományos Közlemények, 2022
Abstract Tools are devices for machining materials which must have different properties depending on their intended application. These properties are determined by the chemical composition and microstructure of the tool steel. The desired steel microstructure can be achieved with suitable heat treatment technology.
openaire   +2 more sources

Fostering Innovation: Streamlining Magnetocaloric Materials Research by Digitalization

Advanced Engineering Materials, EarlyView.
Magnetocaloric cooling (MCE) is an environmentally friendly refrigeration method with great potential. Optimizing MCE materials involves the preparation and screening of large quantities of samples, which in turn generates a large amount of data. A digitalization approach is presented that uses ontologies, knowledge graphs, and digital workflows to ...
Simon Bekemeier, Moritz Blum, Luana Caron, Alisa Chirkova, Philipp Cimiano, Basil Ell, Inga Ennen, Michael Feige, Maik Gaerner, Thomas Hilbig, Andreas Hütten, Günter Reiss, Tapas Samanta, Sonja Schöning, Christian Schröder, Lennart Schwan, Chris Taake, Martin Wortmann   +17 more
wiley   +1 more source

Strain dependence of retained austenite to martensite transformation in 13%Ni steel and numerical study of its effect on hydrogen diffusion

Materials & Design
With the growing demand for large-capacity liquified hydrogen storage, 13 % Ni steel has emerged as a cost-effective material candidate due to its excellent cryogenic toughness. In this study, the martensitic transformation behavior of retained austenite
Chenjun Yu, Yu Hasegawa, Xixian Li, Rafael Magalhães de Melo Freire, Shohei Uranaka, Mitsuo Kimura, Tomoya Kawabata   +6 more
doaj   +1 more source

Retained austenite and tempered martensite embrittlement in medium carbon steels [PDF]

Metallurgical Transactions A, 1983
Electron microscopy, diffraction and microanalysis, X-ray diffraction, and auger spectroscopy have been used to study quenched and quenched and tempered 0.3 pct carbon low alloy steels. Somein situ fracture studies were also carried out in a high voltage electron microscope.
Sarikaya, M., Jhingan, A.K., Thomas, G.
openaire   +2 more sources

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Detection and Estimation of Retained Austenite in a High Strength Si-Bearing Bainite-Martensite-Retained Austenite Micro-Composite Steel after Quenching and Bainitic Holding (Q&B)

Metals, 2019
To develop an advanced high strength steel with reasonable ductility based on low alloying concept as well as micro-composite microstructure essentially consisting of bainite, martensite and retained austenite, a Si-bearing, low alloy medium carbon sheet
Shima Pashangeh, Hamid Reza Karimi Zarchi, Seyyed Sadegh Ghasemi Banadkouki, Mahesh C. Somani   +3 more
doaj   +1 more source