Modifying ability of titanium-based pelleted master alloys
- Authors: Bazhin V.Y.1, Savchenkov S.A.1, Kosov Y.I.1
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Affiliations:
- Saint-Petersburg State Mining University
- Issue: Vol 2017, No 5 (2017)
- Pages: 406-412
- Section: Article
- URL: https://journals.rcsi.science/0036-0295/article/view/171499
- DOI: https://doi.org/10.1134/S0036029517050032
- ID: 171499
Cite item
Abstract
The problem of enhancing the quality of pressed titanium master alloys is discussed to increase the rate and degree of dissolution of their components and to ensure the formation of a fine-grained structure in aluminum alloys. A technology of producing a pelleted titanium master alloy for effective correction of the chemical composition of an aluminum alloy in casting is developed and tested. Incoming inspection of the component composition and the flux distribution in the volume of pressed pellets of various manufacturers is performed. The rate of dissolution of pressed powder master alloys in the aluminum melt is studied, and their modifying ability is estimated after studying the microstructures of cast blanks. Molasses is used as a binder in a pelleted master alloy. As a result, we achieved a uniform flux distribution over the pellet volume and the formation of uniform pores after annealing as compared pelleted master alloys of other manufacturers. The fabricated alloying briquettes have higher strength characteristics and their dissolution rate in the aluminum melt is higher than those of analogs by 15–20%.
About the authors
V. Yu. Bazhin
Saint-Petersburg State Mining University
Author for correspondence.
Email: bazhin-alfoil@mail.ru
Russian Federation, Vasil’evskii Ostrov, 21 Liniya 2, St. Petersburg, 199106
S. A. Savchenkov
Saint-Petersburg State Mining University
Email: bazhin-alfoil@mail.ru
Russian Federation, Vasil’evskii Ostrov, 21 Liniya 2, St. Petersburg, 199106
Ya. I. Kosov
Saint-Petersburg State Mining University
Email: bazhin-alfoil@mail.ru
Russian Federation, Vasil’evskii Ostrov, 21 Liniya 2, St. Petersburg, 199106
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