Method of increasing tightness and hardening of cast corrosion-resistant welded magnalias

Duyunova V.A., Leonov A.A., Trapeznikov A.V.
UDC
669.018.28
DOI
10.18577/2307-6046-2020-0-67-11-18
Article PDF (Russian) (745.88 KB)
How to cite
Duyunova V.A., Leonov A.A., Trapeznikov A.V. Method of increasing tightness and hardening of cast corrosion-resistant welded magnalias // Proceedings of VIAM. 2020. No. 6-7. DOI: 10.18577/2307-6046-2020-0-67-11-18. URL: https://test.viam.ru/en/journal/2020/6-7/2
Keywords
foundry magnalias, tightness, abrasive treatment, hot isostatic pressing, density, gas-shrink porosity, through defects.
Abstract

Based on the studies, it was found that abrasive treatment of castings surface made from Al–Mg alloys in combination with hot isostatic pressing is a very promising stage of the technological process of manufacturing responsible cast parts and welded structural elements with high strength, corrosion resistance and tightness. Practice of proposed physical and mechanical complex treatment of VAL19 magnalia castings received in cold-box mold allows getting solid structure(I–II point) and high tightness castings, and also guarantee high level of mechanical properties.

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