Abstract
The presence of easy-diffusion paths is veryimportant for fast formation or healing of a protectiveCr-rich oxide scale for resistance of chromia-formingsteels against metal dusting. Such easy-diffusion paths, grain boundaries, subboundaries, anddislocations are provided by a fine-grainmicrostructure, cold and/or surface working —polishing, grinding, machining, sand blasting. Theirimportance and effectiveness are demonstrated by various laboratory resultsand also by a failure case and their appearance is shownby TEM studies on ground steel specimens.
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Grabke, H.J., Muller-Lorenz, E.M., Strauss, S. et al. Effects of Grain Size, Cold Working, and Surface Finish on the Metal-Dusting Resistance of Steels. Oxidation of Metals 50, 241–254 (1998). https://doi.org/10.1023/A:1018888321213
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DOI: https://doi.org/10.1023/A:1018888321213