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| Naji, M. |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Azevedo, Nuno Monteiro |
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Yue, Xiaoqi
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Publications (6/6 displayed)
- 2025Unveiling nano-scale chemical inhomogeneity in surface oxide films formed on V- and N-containing martensite stainless steel by synchrotron X-ray photoelectron emission spectroscopy/microscopy and microscopic X-ray absorption spectroscopycitations
- 2024Unveiling nano-scale chemical inhomogeneity in surface oxide films formed on V- and N-containing martensite stainless steel by synchrotron X-ray photoelectron emission spectroscopy/microscopy and microscopic X-ray absorption spectroscopycitations
- 2024Dynamics of early-stage oxide formation on a Ni-Cr-Mo alloycitations
- 2023Penetration of corrosive species into copper exposed to simulated O2-free groundwater by time-of-flight secondary ion mass spectrometry (ToF-SIMS)citations
- 2023In situ quantitative analysis of electrochemical oxide film development on metal surfaces using ambient pressure X-ray photoelectron spectroscopy : Industrial alloyscitations
- 2023Reply to comment on “Penetration of corrosive species into copper exposed to simulated O 2 -free groundwater by time-of-flight secondary ion mass spectrometry (ToF-SIMS)”citations
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article
Unveiling nano-scale chemical inhomogeneity in surface oxide films formed on V- and N-containing martensite stainless steel by synchrotron X-ray photoelectron emission spectroscopy/microscopy and microscopic X-ray absorption spectroscopy
Abstract
<p>Nano-scale chemical inhomogeneity in surface oxide films formed on a V- and N-containing martensite stainless steel and tempering heating induced changes are investigated by a combination of synchrotron- based hard X-ray Photoelectron emission spectroscopy (HAXPES) and microscopy (HAXPEEM) as well as microscopic X-ray absorption spectroscopy (μ-XAS) techniques. The results reveal the inhomogeneity in the oxide films on the micron-sized Cr<sub>2</sub>N- and VN-type particles, while the inhomogeneity on the martensite matrix phase exists due to localised formation of nano-sized tempering nitride particles at 600 °C. The oxide film formed on Cr<sub>2</sub>N-type particles is rich in Cr<sub>2</sub>O<sub>3</sub> compared with that on the martensite matrix and VN-type particles. With the increase of tempering temperature, Cr<sub>2</sub>O<sub>3</sub> formation is faster for the oxidation of Cr in the martensite matrix than the oxidation of Cr nitride-rich particles.</p>