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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Nyborg, Lars
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (30/30 displayed)
- 2024Full Density Powder Metallurgical Cold Work Tool Steel through Nitrogen Sintering and Capsule-Free Hot Isostatic Pressingcitations
- 2024Corrosion resistance of additively manufactured aluminium alloys for marine applicationscitations
- 2023The effect of powder reuse on the surface chemical composition of the Scalmalloy powder in Powder Bed Fusion – Laser Beam processcitations
- 2023In situ Imaging of Precipitate Formation in Additively Manufactured Al-Alloys by Scanning X-ray Fluorescencecitations
- 2020Effect of atomization on surface oxide composition in 316L stainless steel powders for additive manufacturingcitations
- 2020Full Densification in PM Steels Through Liquid Phase Sintering and HIP Approach
- 2018Enhanced Densification of PM Steels by Liquid Phase Sintering with Boron-Containing Master Alloycitations
- 2017Influence of friction models on FE simulation results of orthogonal cutting processcitations
- 2015Nitrogen uptake of nickel free austenitic stainless steel powder during heat treatment : an XPS study
- 2015Influence of the PM-processing route and nitrogen content on the properties of Ni-free austenitic stainless steel
- 2015Thermodynamic And Kinetic Aspects Of Oxide Transformation During Sintering Of Cr-Prealloyed Pm Steels
- 2014EFFICIENCY AND TEMPERATURE RANGES OF ACTIVITY OF DIFFERENT REDUCING AGENTS DURING SINTERING OF CR-PREALLOYED PM STEELS
- 2014Surface Oxides on Gas and Water Atomized Steel Powders
- 2014Microstructure Development in Powder Metallurgy Steels: Effect of Alloying Elements and Process Variables
- 2014Oxide Transformation in Cr-Mn-Prealloyed Sintered Steels: Thermodynamic and Kinetic Aspects
- 2014Thermogravimetry Study of the Effectiveness of Different Reducing Agents during Sintering of Cr-prealloyed PM Steels
- 2014THERMODYNAMIC AND KINETIC ASPECTS OF OXIDE TRANSFORMATION DURING SINTERING OF CR-PREALLOYED PM STEELS
- 2014Effectiveness of reducing agents during sintering of Cr-prealloyed PM steels
- 2013Characteristics of Surface Oxides: Similarities and Differences between Gas and Water Atomized Steel Powders
- 2013Surface Oxides on Gas and Water Atomized Steel Powders
- 2013Effect of Processing Parameters on Oxide Transformation in Cr-Mn-Prealloyed Sintered Steels
- 2013Effectiveness of Different Reducing Agents during Sintering of Cr-Prealloyed PM Steels
- 2013An experimental investigation of the influence of cutting-edge geometry on the machinability of compacted graphite ironcitations
- 2012Methodology for evaluating effects of material characteristics on machinability-theory and statistics-based modelling applied on Alloy 718citations
- 2012Influence of nitrogen atmosphere on reduction mechanisms of a high strength austenitic steel
- 2012Process Control System for Delubrication of PM Steels
- 2011Oxide Transformation during Sintering of Cr and Mn Prealloyed Water Atomized Steel Powder
- 2011Characterization of high-Mn-Cr austenitic steel powder Fe-19Mn-18Cr-C-N
- 2011CHANGES IN OXIDE CHEMISTRY DURING CONSOLIDATION OF Cr/Mn WATER ATOMIZED STEEL POWDER
- 2010Oxide Transformation During Sintering Of Prealloyed Water Atomized Steel Powder
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article
CHANGES IN OXIDE CHEMISTRY DURING CONSOLIDATION OF Cr/Mn WATER ATOMIZED STEEL POWDER
Abstract
Modern water atomization methods allow industrial production of high-purity water atomized powder grades prealloyed with chromium and manganese. Surface coverage by oxide islands, formed by a variety of mixed oxides of chromium and manganese with higher thermodynamic stability, is below 10% that assumes good sinterability of such PM grades. However, there is still a risk of formation of oxides products on the powder surface during critical stages of powder consolidation, especially during heating stage. Therefore present work is focused on effect of alloying elements content on the possible scenarios of oxides reduction/formation/transformation in Fe-Cr-Mn-C powder systems. Accurate analysis of specimens, sampled during different stages of sintering process, by advanced analysis techniques (HR SEM+EDX) was combined with thermodynamic modelling of oxides stability. Obtained results indicate that oxide transformation process is governed by thermodynamic stability of present oxide phases in the line: Fe2O3→FeO→Fe2MnO4→Cr2FeO4→Cr2O3→MnCr2O4→MnO/MnSiOx→SiO2.