Searched for: subject%3A%22Austenite%255C+stability%22
(1 - 9 of 9)
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DAUTEZAC, Alice (author)
The presence of retained austenite (RA) has been proven beneficial for the formability of Advanced High Strength Steels. Therefore, multiple thermal austenite stabilization methods have been researched, such as Mn-partitioning during intercritical annealing in medium Mn steels. The Cyclic Partial Phase Transformation (CPPT) approach has been...
master thesis 2023
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Ribamar, G.G. (author), Escobar, J. D. (author), Kwiatkowski da Silva, A. (author), Schell, N. (author), Ávila, J. A. (author), Nishikawa, A.S. (author), Oliveira, J. P. (author), Goldenstein, H. (author)
The addition of Si to steels is a well stablished method to delay cementite precipitation, allowing for carbon partitioning from martensite to retained austenite during tempering. It has been argued that carbon enrichment and stabilization of austenite leads to increased ductility and toughness. This has been the main motivation for the...
journal article 2023
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Arribas, Maribel (author), Del Molino, Eider (author), Gutiérrez, Teresa (author), Arlazarov, Artem (author), Martin, David (author), De Caro, Daniele (author), Ayenampudi, S. (author), Santofimia, Maria Jesus (author)
In this work, a medium Mn-Ni steel was treated through Quenching and Partitioning (Q&P) with a partitioning temperature (PT) of 650 °C, which corresponded to the start of the austenite reverse transformation (ART) phenomenon. The influence of the quenching temperature (QT) and partitioning time (Pt) on austenite stabilization and mechanical...
journal article 2022
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Arribas, Maribel (author), Gutiérrez, Teresa (author), Del Molino, Eider (author), Arlazarov, Artem (author), De Diego-Calderón, Irene (author), Martin, David (author), De Caro, Daniele (author), Ayenampudi, S. (author), Santofimia, Maria Jesus (author)
In this work, four low carbon steels with different contents of Mn and Ni were heat treated by quenching and partitioning (Q&P) cycles where high partitioning temperatures, in the range of 550 °C–650 °C, were applied. In order to elucidate the effect of applying these high partitioning temperatures with respect to more common Q&P cycles,...
journal article 2020
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Vercruysse, Florian (author), Celada-Casero, Carola (author), Linke, Bernd M. (author), Verleysen, Patricia (author), Petrov, R.H. (author)
Because of their excellent combination of strength and ductility, quenching and partitioning (Q & P) steels have a great chance of being added to the third generation of advanced high strength steels. The large ductility of Q & P steels arises from the presence of 10% to 15% of retained austenite which postpones necking due to the...
journal article 2020
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Ayenampudi, S. (author), Celada-Casero, Carola (author), Sietsma, J. (author), Santofimia, Maria Jesus (author)
Medium-Mn Quenching & Partitioning (Q&P) steels have been recently considered as potential candidates for the 3rd generation advanced high-strength steels. The processing of these steels aims to induce the partitioning of substitutional alloying elements from martensite to austenite during an isothermal treatment at high temperature,...
journal article 2019
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Hidalgo Garcia, J. (author), Huizenga, R.M. (author), Findley, K.O. (author), Santofimia, Maria Jesus (author)
By means of high-energy synchrotron X-ray diffraction, the interplay between martensite and retained austenite phases in steel during the application of stress has been analyzed. Martensite properties were varied through controlled reheating heat treatments in a low carbon Quenched and Partitioned (Q&P) steel consisting of retained...
journal article 2019
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Kim Lee, B.N. (author), Sietsma, J. (author), Santofimia, Maria Jesus (author)
Understanding carbon redistribution in steels is crucial in developing advanced high strength steels. For instance, Quenching & Partitioning (Q&P) processes rely on the partitioning of carbon from martensite into austenite, where at the end of the heat treatment the carbon-enriched austenite shows higher stability at room temperature....
journal article 2017
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Van Tol, R.T. (author)
This thesis studies the effect of plastic deformation on the stability of the austenitic microstructure against martensitic transformation and diffusional decomposition and its role in the phenomenon of delayed fracture in austenitic manganese (Mn)-based TWinning Induced Plasticity (TWIP) steels. The transformation to alpha’-martensite upon...
doctoral thesis 2014
Searched for: subject%3A%22Austenite%255C+stability%22
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