Abstract
Thermal-wave electron microscopy, which employs heat flow to probe variations in the thermal properties of solid materials, can provide micrometre-level resolution of surface and subsurface features of opaque samples. The effects of modulation frequency, phase detection and surface characteristics on the contrast and resolution of thermal-wave electron images of corrosion products on unprotected steel surfaces were investigated. Thermal-wave electron imaging is shown to be capable of distinguishing between the corrosion products and surface topographic features of the sample. This allows an automated image analysis technique to be used to assess quantitatively the extent of corrosion on rough steel surfaces.
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Nguyen, T., Olson, C.D. Application of thermal-wave electron microscopy to imaging and assessment of corrosion on rough steel surface. Materials and Structures 22, 71–79 (1989). https://doi.org/10.1007/BF02472698
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DOI: https://doi.org/10.1007/BF02472698