Results 41 to 50 of about 13,701 (204)

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

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

Characterisation of PVD-TiN coated austempered ductile iron: Effects of nodule count and austempering temperature [PDF]

, 2011
In this work PVD-TiN coatings are deposited on ADI substrates austempered at 280 and 360°C, with nodule counts varying between 490 and 1 100 nod/mm2. The deposition is performed at 300°C by the arc ion plating technique.
Colombo, Diego Alejandro, Echeverría, María D., Massone, Juan Miguel, Moncada, Osvaldo Julio   +3 more
core   +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

Phase-field analysis of quenching and partitioning in a polycrystalline Fe-C system under constrained-carbon equilibrium condition

, 2018
Mechanical properties of steels are significantly enhanced by retained austenite. Particularly, it has been shown that a recently developed heat-treatment technique called Quenching and Partitioning (Q\&P) stabilises austenite effectively. In the present
Amos, P G Kubendran, Nestler, Britta, Schneider, Daniel, Schoof, Ephraim, Streichan, Nick   +4 more
core   +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

OIM analysis of microstructure and texture of a TRIP assisted steel after static and dynamic deformation [PDF]

, 2010
TRIP-assisted steel with a composition of 0.2%C, 1.6%Mn, 1.5%Al was studied in the undeformed state, after the application of 10 and 30 % static tensile strain parallel to rolling the direction of the sheet and after dynamic (Hopkinson) fracture test ...
Bouquerel, J., Houbaert, Y., Kestens, L., Petrov, R., Verbeken, K., Verleysen, P.   +5 more
core   +2 more sources

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

Effect of Prior Cold Reduction of C–Si–Mn Hot-Rolled Sheet on Microstructures and Mechanical Properties after Quenching and Partitioning Treatment

Metals, 2022
This paper studies the microstructures and mechanical properties of quenching and partitioning (Q&P) samples prepared with 35% and 75% cold reduction sheets at an annealing temperature of 810 °C (intercritical temperature).
Yuanyao Cheng, Gang Zhao, Deming Xu, Siqian Bao   +3 more
doaj   +1 more source