Panchenko I.A., Drobyshev V.K., Labunskiy D.N., Konovalov S.V. Studying the Effect of Electron Beam and Ion Plasma Treatment on the Strength Characteristics of AA7075 Alloy

DOI: 10.18503/1995-2732-2025-23-4-110-118

Abstract

Problem Statement (Relevance). Aluminum alloys of the 7075 grade have a high strength-to-weight ratio, however, traditional methods of production of these alloys are associated with the risk of defects (micropores, cracks) and heterogeneity of the material properties, which complicate its implementation in the existing technological cycles of metallurgical production. Objectives. The research is aimed at determining the influence of ion-plasma action modes on the mechanical properties (microhardness) on the surface of AA7075 alloy samples. The main objective of the work is to study the influence of optimal parameters of electron-beam and ion-plasma action on the strength characteristics of 7075 aluminum alloy. Methods Applied. Modern research infrastructure facilities are presented as equipment, using the similar electron source in an argon environment. Fatigue life, uniaxial tension, special purity units were used for mechanical tests. Using a Vickers microhardness tester (State standard GOST 9450-76), the microhardness distribution was studied to find the optimal nitriding modes for 9 test samples of AA7075 alloy. Originality. It lies in obtaining new results on the evolution of mechanical properties of materials manufactured by wire-arc additive technologies under energy impact on their surface. Result. The microhardness values and strength properties were determined, on the basis of which conclusions were made on the optimal nitriding modes, the effect of electron-beam and combined treatment on the strength and fatigue life of AA7075 alloy. Practical Relevance. The research results can be used to select the optimal temperature and time modes for the composition nitriding, as well as to develop new materials with improved performance characteristics.

Keywords

aluminum alloys 7075, tensile strength, fatigue, microhardness, nitriding, electron beam treatment

For citation

Panchenko I.A., Drobyshev V.K., Labunskiy D.N., Konovalov S.V. Studying the Effect of Electron Beam and Ion Plasma Treatment on the Strength Characteristics of AA7075 Alloy. Vestnik Magnitogorskogo Gosudarstvennogo Tekhnicheskogo Universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University]. 2025, vol. 23, no. 4, pp. 110-118. https://doi.org/10.18503/1995-2732-2025-23-4-110-118

Irina A. Panchenko – PhD (Eng.), Head of the Scientific Laboratory of Electron Microscopy and Image Processing, Siberian State Industrial University, Novokuznetsk, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0002-1631-9644

Vladislav K. Drobyshev – Researcher at the Laboratory of Electron Microscopy and Image Processing, Siberian State Industrial University, Novokuznetsk, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0002-1532-9226

Dmitry N. Labunskiy – Postgraduate Student, Siberian State Industrial University, Novokuznetsk, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it..

Sergey V. Konovalov – DrSc (Eng.), Professor, Vice-Rector for Scientific and Innovative Activities, Siberian State Industrial University, Novokuznetsk, Russia. Email: This email address is being protected from spambots. You need JavaScript enabled to view it.. ORCID 0000-0003-4809-8660

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