Abstract
We describe an original method for experimental determination of the formation of and changes in internal stresses that appear in electrometallized coatings in the process of their application. The regularities of changes in internal stresses depending on the thickness of coatings and composition of the blend of a powder wire are investigated. It is shown that residual tension stresses in coatings relax by means of plastic strain of low-strength structural components and/or due to the initiation and growth of cracks in brittle components. The characteristics of strength and crack resistance of coatings can be considerably improved by optimizing the composition of the blend of the powder wire.
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References
B.P. Skvortsov and Yu. A. Sidorenko, “Calculation of residual stresses in an isothermal applied layer”, in:Collection of Scientific Papers of the Belorussian Agricultural Academy [in Russian], Minsk (1984), pp. 28–35.
M. M. Student and V. S. Pikh, “Dependence of the level of residual stresses on the composition of coatings and modes of electroarc metallization”,Fiz.-Khim. Mekh. Mater., No. 5, 46–52 (1993).
Additional information
Karpenko Physicomechanical Institute, Ukrainian Academy of Sciences, L'viv. Translated from Matematychni Metody ta Fizyko-Mekhanichni Polya, Vol. 41, No. 2, pp. 105-110. April–June, 1998
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Pokhmurs'kyi, V.I., Student, M.M. Appearance and redistribution of internal stresses in coatings in the process of their application. J Math Sci 99, 1641–1647 (2000). https://doi.org/10.1007/BF02674187
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DOI: https://doi.org/10.1007/BF02674187