X-ray photoelectron spectroscopy of X60 steel
Publication: R. Hannachi, D. Biggio, B. Elsener, M. Fantauzzi, A. Rossi, X-ray photoelectron spectroscopy investigation of X60 steel, Surface Science Spectra 31 (2024) 024014. doi:10.1116/6.0003972
X60 API 5L is one of the typical medium to high strength pipeline steels of the oil and gas industry that might be used in the future for green hydrogen storage and transportation. It’s surface characterization by XPS was performed in the framework of the e.INS spoke 7 project “Study of hydrogen permeation barriers for the safe storage and transport of green hydrogen” in order to know the materials surface before applying hydrogen permeation barriers (HPB).
Iron Fe2p high resolution spectra of X60 API 5L steel after cleaning in five solvents. The Fe 2p spectrum consists of a Fe 2p3/2 and Fe 2p1/2 doublet due spin–orbit coupling. The Fe 2p3/2 signal shows three peaks located at
- (1) at 706.9 eV that corresponds to metallic iron Fe(0)
- (2) at 710.6 eV that corresponds to Fe2O3
- (3) at 712.4 eV that corresponds to FeOOH
Instrument: Thermo Scientific Theta Probe, Excitation Source Al Kα monochromatic, Source Energy: 1486.6 eV, Source Strength: 100 W Source Size: 0.4 Å~ 0.4 mm2