| 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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Nutter, John
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2023In situ TEM observations of the growth of bainitic ferrite in an Fe-0.3C-3Mn-1.5Si-0.15Mo steelcitations
- 2023Triple and double twin interfaces in magnesium - the role of disconnections and facetscitations
- 2022Tribological Behavior of Microalloyed Cu50Zr50 Alloy
- 2022Tribological Behavior of Microalloyed Cu50Zr50 Alloy
- 2022Tuning the tribological performance of Cu50Zr50 through microalloying
- 2021Hydrogen suppression of dislocation cell formation in micro and nano indentation of pure iron single crystalscitations
- 2020The influence of hydrogen on plasticity in pure iron—theory and experimentcitations
- 2020Hydrogen embrittlement through the formation of low-energy dislocation nanostructures in nanoprecipitation-strengthened steelscitations
- 2019Spatially‐Controlled Occlusion of Polymer‐Stabilized Gold Nanoparticles within ZnOcitations
- 2018Direct TEM Observation of the Movement of the Austenite-Ferrite Interface in Steels
- 2017Direct observation of precipitation along twin boundaries and dissolution in a magnesium alloy annealing at high temperaturecitations
Places of action
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article
Tribological Behavior of Microalloyed Cu50Zr50 Alloy
Abstract
Promoting the martensitic transformation through optimum microalloying with Fe and/or Mn was observed to be an effective method to enhance the wear resistance of the Cu50Zr50 at% shape memory alloy (SMA). Among all the potential microelements and concentrations, partial replacement of Cu by up to 1 at% Fe and Mn is of interest since from density functional-based calculations, large minimization of the stacking fault energy (SFE) of the B2 CuZr phase is predicted. For this reason, an effective martensitic transformation is expected. The largest decrease of the SFE from 0.36 J/m2 to 0.26 J/m2 is achieved with partial replacement of Cu by 0.5 at% Fe. This results in the highest martensitic transformation upon wear testing, especially at highest load (15 N) for which the mass loss is 0.0123 g compared to 0.0177 g for Cu50Zr50 and a specific wear-rate of 5.9 mm3/Nm, compared to 8.5 for mm3/Nm for Cu50Zr50. This agrees with the low coefficient of friction of 0.48 ± 0.05 and low roughness of 0.200 ± 0.013 µm of the Fe-containing alloy compared to that for Cu50Zr50, 0.55 and 0.415 ± 0.026 µm, respectively. All the worn surfaces show the formation of abrasive grooves, being shallowest for the more wear resistant 0.5 at% Fe alloy. The second more wear resistant alloy contains 0.5 at% Mn. Wear mechanisms of abrasion, adhesion, and delamination have been identified.