Application of quantitative X-ray photoelectron spectroscopy (XPS) imaging: investigation of Ni-Cr-Mo alloys exposed to crevice corrosion solution

This paper explores quantitative X-ray photoelectron spectroscopy imaging on three different Ni-Cr-Mo Hastelloy® alloys (BC-1, C-22 and G-30) with differing Cr and Mo contents. The alloys were subjected to a simulated critical crevice corrosion solution. Ni-based alloys have been shown to exhibit excellent resistance to a range of corrosive media due to the formation of an inert oxide layer, primarily containing Cr and Mo. However, these alloys...