Results 51 to 60 of about 13,701 (204)

The Role of Retained Austenite and Its Carbon Concentration on Elongation of Low Temperature Bainitic Steels at Different Austenitising Temperature

Metals, 2018
The influence of austenitising temperature on the tensile properties of low temperature bainitic steel was investigated. With the increasing austenitising temperature, a significant change of elongation was found between 850 and 950 °C, which was ...
Baoqi Dong, Tingping Hou, Wen Zhou, Guohong Zhang, Kaiming Wu   +4 more
doaj   +1 more source

Effect of lattice mismatch-induced strains on coupled diffusive and displacive phase transformations

, 2006
Materials which can undergo slow diffusive transformations as well as fast displacive transformations are studied using the phase-field method. The model captures the essential features of the time-temperature-transformation (TTT) diagrams, continuous ...
J. D. Gunton, J. Pons, J. W. Christian, K. Bhattacharya, L. D. Landau, Mathieu Bouville, Rajeev Ahluwalia   +6 more
core   +1 more source

New Multiphase CP and DP 1000 MPa strength level grades for improved performance after hot forming [PDF]

, 2019
Pure martensitic steels have after hot forming limited performance in terms of rest ductility which limits the application in crash relevant parts. New steel grades were designed in the EU project HOTFORM including the corresponding process routes. These
Aranguren, Iñigo, Arribas, Maribel, Caro, Daniele De, Lahaije, C T W, Pérez, Iñaki, Rana, R, Sunderkoetter, C   +6 more
core   +1 more source

Retained austenite in multipass high-strength weld metal with a yield strength exceeding 1100 MPa

Journal of Materials Research and Technology
Retained austenite is an essential phase in various types of steel due to its ability to positively influence mechanical properties. However, in the research field of high-strength weld metals, it is typically considered only as part of martensite ...
Daniel Schrittwieser, Nicole Rinnhofer, David Obersteiner, Hannes Pahr, Oleksandr Glushko, Ronald Schnitzer   +5 more
doaj   +1 more source

Effects of the microstructure and retained/reversed austenite on the corrosion behavior of NiCrMoV/Nb high-strength steel

npj Materials Degradation, 2023
A comparison of microstructure and corrosion performance has been made between NiCrMoV/Nb steel under different heat treatments in artificial seawater. The microstructures as well as the volume fraction of austenite strongly affect corrosion resistance ...
Chao Hai, Yuetong Zhu, Endian Fan, Cuiwei Du, Xuequn Cheng, Xiaogang Li   +5 more
doaj   +1 more source

Austenite formation and cementite dissolution during intercritical annealing of a medium-manganese steel from a martensitic condition

Materials & Design, 2021
In the present study, in situ high-energy X-ray diffraction (HEXRD), dilatometry, and metallography were conducted for the purpose of understanding microstructure evolution during intercritical annealing of a Fe-0.19C-4.39Mn steel from a martensitic ...
J.J. Mueller, X. Hu, X. Sun, Y. Ren, K. Choi, E. Barker, J.G. Speer, D.K. Matlock, E. De Moor   +8 more
doaj   +1 more source

In situ observation of strain and phase transformation in plastically deformed 301 austenitic stainless steel [PDF]

, 2016
To inform the design of superior transformation-induced plasticity (TRIP) steels, it is important to understand what happens at the microstructural length scales.
Abreu, Bachmann, Bain, Bhadeshia, Bhadeshia, Bolling, Bouguet, Bowles, Bunge, Cakmak, Chatterjee, Cherkaoui, Clocksin, Delogu, Di Gioacchino, Dieter, Ferreira, Frank, Geijselaers, Gey, Gioacchino, Guimarães, Kammers, Kato, Kundu, Kundu, Kundu, Kurdjumov, LaVision, Lecroisey, Lim, Lucas, Mackenzie, McMurtrey, Moat, Olson, Olson, Olson, Patel, Patriarca, Roters, Sachs, Schreier, Simm, Simm, Sutton, Takahashi, Talonen, Talonen, Tasan, Taylor, Tsuchida, Tsuchida, Yeddu, Zackay   +54 more
core   +2 more sources

Quenching and Partitioning of Multiphase Aluminum-Added Steels

Metals, 2019
The quenching and partitioning response following intercritical annealing was investigated for three lean TRIP-type high-Al steel compositions. Depending on the intercritical austenite fraction following annealing, the steels assumed either a ferrite ...
Tuomo Nyyssönen, Olli Oja, Petri Jussila, Ari Saastamoinen, Mahesh Somani, Pasi Peura   +5 more
doaj   +1 more source

An evaluation of weld metal nitrogen retention and properties in 316NL austenitic stainless steel [PDF]

, 2011
A series of tests were conducted using varying levels of nitrogen and helium in a conventional argon shielding gas when welding 316LN austenitic stainless steel. The outcome was that a 15 per cent nitrogen addition to the argon shielding gas had the most
Baker, Thomas, Galloway, Alexander, McPherson, Norman   +2 more
core   +1 more source

Influence of Parameters of Quenching and Partitioning Process on Microstructure and Fraction of Retained Austenite

Journal of Advanced Materials in Engineering, 2015
Certain amount of retained austenite can increase ductility of steels because of the TRIP phenomenon during plastic deformation. One method for achieving this is partitioning of carbon into austenite to stabilize it at room temperature. The quenching and
A. Shirali, A. Honarbakhsh Raouf, S. Bazzaz Bonabi   +2 more
doaj   +2 more sources