Abstract
The effect of heat treatment on the performances of ductile iron with nodular graphite has been studied. To increase the strength properties of the material, its ductility, and impact strength, annealing has been performed. The results of microstructural analysis of VCH 35 ductile cast iron subjected to heat treatment are reported. The investigations have shown that heat treatment (high-temperature annealing) makes it possible to increase the degree of nodularity of graphite inclusions and the degree of perfection of their microstructure. In addition, the annealing has led to the elimination of pearlite colonies smaller than 1‒1.5 µm.
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ACKNOWLEDGMENTS
The metallographic study was carried out at the Center for Collective Use of Polzunov Altai State Technical University.
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This work was supported by ongoing institutional funding. No additional grants to carry out or direct this particular research were obtained.
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Translated by E. Bondareva
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Ivanov, S.G., Guryev, A.M., Guryev, M.A. et al. The Effect of Heat Treatment on the Structure and Properties of VCh 35 Ductile Cast Iron. Tech. Phys. Lett. 49, 92–96 (2023). https://doi.org/10.1134/S1063785023700037
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DOI: https://doi.org/10.1134/S1063785023700037