Studies of the regularities of the heat treatment influence on the structure, phase composition and mechanical properties of medium-sized forgings made of heat-resistant alloy of the Mg‒Zn‒Zr‒REE system

Volkova E.F., Mostyaev I.V., Akinina M.V., Alikhanyan A.A.
UDC
669.721.5: 621.762.224
DOI
10.18577/2307-6046-2024-0-1-13-26
Article PDF (Russian) (1023.06 KB)
How to cite
Volkova E.F., Mostyaev I.V., Akinina M.V., Alikhanyan A.A. Studies of the regularities of the heat treatment influence on the structure, phase composition and mechanical properties of medium-sized forgings made of heat-resistant alloy of the Mg‒Zn‒Zr‒REE system // Proceedings of VIAM. 2024. No. 1. DOI: 10.18577/2307-6046-2024-0-1-13-26. URL: https://test.viam.ru/en/journal/2024/1/2
Keywords
wrought magnesium alloy, aging, mechanical properties, microstructure, phase composition, small anisotropy of properties, negative aging effect
Abstract

The paper presents the results of determining the mechanical properties, comparative research of the microstructure and phase composition of medium-sized forgings made of heat-resistant magnesium alloy of the Mg–Zn–Zr–REE system in non-heat-treated and aged states. It was founded that the anisotropy of the main mechanical properties of forgings does not exceed 7–12,5 % in the longitudinal, transverse and altitude directions in all studied states. The highest and most stable level of properties is characteristic of the non-heat-treatedt state in the longitudinal direction. A special feature is the reduction of strength properties during aging by 5–8 %.

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