Conclusions
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1.
The intensification of the process of sintering of an electrophoretic deposit applied to a steel basis with a nickel-phosphorus undercoat is due to rapid penetration of a liquid phase forming in the latter at 890°C.
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2.
The reaction of the liquid phase with particles of the nickel-phosphorus binder averages out their phosphorus contents, causing the liquid to disappear.
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3.
One cause of defects in sintered electrophoretic chromium carbide coatings is the presence in them of cracks before sintering.
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Literature cited
E. V. Brondzya, V. N. Klimenko, et al., “Effect of phosphorus additions on the sintering temperature and properties of chromium carbide-nickel alloys,” Poroshk. Metall., No. 9, 22–25 (1971).
I. D. Radomysel'skii, L. M. Apininskaya, et al., “Deposition of chromium carbide coatings by electrophoresis,” in: Protective Coatings on Metals [in Russian], Vol. 11 (1977), pp. 83–85.
M. Hansen and K. P. Anderko, Constitution of Binary Alloys, McGraw-Hill, New York (1957).
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Translated from Poroshkovaya Metallurgiya, No. 5(197), pp. 27–32, May, 1979.
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Radomysel'skii, I.D., Vlasyuk, R.Z. & Furman, V.V. Structure formation in electrophoretic chromium carbide alloy coatings on steel. Powder Metall Met Ceram 18, 304–308 (1979). https://doi.org/10.1007/BF00791989
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DOI: https://doi.org/10.1007/BF00791989