TY - JOUR
T1 - 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
AU - Yue, Xiaoqi
AU - Chen, Dihao
AU - Krishnan, Anantha
AU - Lazar, Isac
AU - Niu, Yuran
AU - Golias, Evangelos
AU - Wiemann, Carsten
AU - Gloskovskii, Andrei
AU - Schlueter, Christoph
AU - Jeromin, Arno
AU - Keller, Thomas F.
AU - Tong, Haijie
AU - Ejnermark, Sebastian
AU - Pan, Jinshan
PY - 2025
Y1 - 2025
N2 - 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 Cr2N- 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 Cr2N-type particles is rich in Cr2O3 compared with that on the martensite matrix and VN-type particles. With the increase of tempering temperature, Cr2O3 formation is faster for the oxidation of Cr in the martensite matrix than the oxidation of Cr nitride-rich particles.
AB - 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 Cr2N- 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 Cr2N-type particles is rich in Cr2O3 compared with that on the martensite matrix and VN-type particles. With the increase of tempering temperature, Cr2O3 formation is faster for the oxidation of Cr in the martensite matrix than the oxidation of Cr nitride-rich particles.
KW - Hard X-ray photoelectron emission spectroscopy
KW - Martensite stainless steel
KW - Surface oxide film
KW - Synchrotron microscopic X-ray absorption spectroscopy
KW - Synchrotron X-ray photoelectron emission microscopy
U2 - 10.1016/j.jmst.2024.04.006
DO - 10.1016/j.jmst.2024.04.006
M3 - Article
AN - SCOPUS:85192725356
SN - 1005-0302
VL - 205
SP - 191
EP - 203
JO - Journal of Materials Science and Technology
JF - Journal of Materials Science and Technology
ER -