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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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Stewart, David
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2022Low temperature plasma-enhanced atomic layer deposition of sodium phosphorus oxynitride with tunable nitrogen contentcitations
- 2022Characterisation of Ferritic to Austenitic Steel Functional Grading via Powder Hot Isostatic Pressing
- 2022Fundamental Aspects of Functional Grading via Powder Hot Isostatic Pressing - Development of microstructure and diffusional processescitations
- 2022Fundamental Aspects of Functional Grading via Powder Hot Isostatic Pressing - Development of microstructure and diffusional processescitations
- 2020The Interaction of Galling and Oxidation in 316L Stainless Steelcitations
- 2020The Interaction of Galling and Oxidation in 316L Stainless Steelcitations
- 2019The identification of a silicide phase and its crystallographic orientation to ferrite within a complex stainless steel
- 2018A crystal plasticity assessment of normally-loaded sliding contact in rough surfaces and gallingcitations
- 2017Evolution of grain boundary network topology in 316L austenitic stainless steel during powder hot isostatic pressingcitations
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article
The Interaction of Galling and Oxidation in 316L Stainless Steel
Abstract
The galling behaviour of 316L stainless steel was investigated in both the non-oxidised and oxidised states, after exposure in simulated pressurised water reactor (PWR) water for 850 h. Galling testing was performed according to ASTM G196 in ambient conditions. 316L was found to gall by the wedge growth and flow mechanism in both conditions. This resulted in folds ahead of the prow and adhesive junction, forming a heavily sheared multilayered prow. The galling trough was seen to have failed through successive shear failure during wedge flow. Immediately beneath the surface a highly sheared nanocrystalline layer was seen, termed the tribologically affected zone (TAZ). It was observed that strain-induced martensite formed within the TAZ. Galling damage was quantified using Rt (maximum height - maximum depth) and galling area (the proportion of the sample which is considered galled), and it was shown that both damage measures decreased significantly on the oxidised samples. At an applied normal stress of 4:2MPa the galled area was 14% vs. 1:2% and the Rt was 780 μm vs. 26 μm for the non-oxidised and oxidised sample respectively. This trend was present at higher applied normal stresses, although less prominent. This difference in galling behaviour is likely to be a result of a reduction in adhesion in the case of the oxidised surface.