| People | Locations | Statistics |
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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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Shishkin, Andrei
Riga Technical University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2023Physical, Thermal, and Chemical Properties of Fly Ash Cenospheres Obtained from Different Sourcescitations
- 2023High-Temperature, Lightweight Ceramics with Nano-Sized Ferrites for EMI Shielding: Synthesis, Characterisation, and Potential Applicationscitations
- 2023The Effect of Zinc Oxide on DLP Hybrid Composite Manufacturability and Mechanical-Chemical Resistancecitations
- 2022Application of Granular Biocomposites Based on Homogenised Peat for Absorption of Oil Productscitations
- 2021Towards Next-Generation Sustainable Composites Made of Recycled Rubber, Cenospheres, and Biobindercitations
- 2021Solutions of critical raw materials issues regarding iron-based alloyscitations
- 2021Novel hybrid method to additively manufacture denser graphite structures using Binder Jettingcitations
- 2020Influence of waste glass in the foaming process of open cell porous ceramic as filtration media for industrial wastewatercitations
- 2019Development of Young's modulus of natural illitic clay during the heating and cooling stages of firingcitations
- 2019Clay Ceramic Hollow Sphere - Cement Syntactic Foam Composite for Building Applicationscitations
- 2019Identification of Carbides in Tool Steel by Selective Etchingcitations
- 2017Vibration-assisted sputter coating of cenospheres: A new approach for realizing Cu-based metal matrix syntactic foamscitations
Places of action
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article
Identification of Carbides in Tool Steel by Selective Etching
Abstract
<jats:p>This paper describes simple metallographic technique for selective etching of individual types of carbides (MC, M<jats:sub>2</jats:sub>C and M<jats:sub>6</jats:sub>C and M<jats:sub>7</jats:sub>C<jats:sub>3</jats:sub>) in tool steel. Electrolytic etching in chromic acid was used in order to reveal the MC carbides. Chemical etching in permanganate solution revealed the M<jats:sub>2</jats:sub>C and M<jats:sub>6</jats:sub>C carbides, while the electrolytic etching in the latter solution enabled to observe M<jats:sub>7</jats:sub>C<jats:sub>3</jats:sub>, M<jats:sub>2</jats:sub>C and M<jats:sub>6</jats:sub>C carbides. These techniques were demonstrated on an experimental niobium-containing tool steel prepared by powder metallurgy. The results confirm that the MC carbides are highly thermally stable, while the M<jats:sub>2</jats:sub>C carbides decompose during austenitizing at the temperature of 1050 °C and higher. The M<jats:sub>7</jats:sub>C<jats:sub>3 </jats:sub>carbides dissolve in the austenite significantly. This exact and simple observation of the carbides behaviour enables to describe the role of particular carbides on heat treatment behaviour and also to save the carbide-forming elements, where the important ones (tungsten, vanadium) are listed as critical raw materials and the others (chromium and molybdenum) are also strategic.</jats:p>