For citations:
Kovalko M.S., Volochko A.T., Ziziko A.V., Rubanik V.V. Structure and properties forming in ductile iron during isothermal hardening using ultrasound. Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY). 2020;(4):118-124. (In Russ.) https://doi.org/10.21122/1683-6065-2020-4-118-124