Comparative Сharacteristics of the  Structure
and Functional Properties of Coatings Formed on Aluminum Alloys 
2ххх and 7ххх Series by the Method of Plasma Electrolytic Oxidation

N. V. Letyagin; Летягин Н. В.; A. A. Sokorev; Сокорев А. А.; V. N. Kokarev; Кокарев В. Н.; A. S. Shatrov; Шатров А. С.; A. G. Tsydenov; Цыденов А. Г.; A. S. Finogeev; Финогеев А. С.; A. F. Musin; Мусин А. Ф.; M. I. Petrzhik; Петржик М. И.

doi:10.31857/S0015323022100345

Comparative Сharacteristics of the Structure and Functional Properties of Coatings Formed on Aluminum Alloys 2ххх and 7ххх Series by the Method of Plasma Electrolytic Oxidation

Авторлар: Letyagin N.V.¹^,2, Sokorev A.A.³, Kokarev V.N.³, Shatrov A.S.³, Tsydenov A.G.³, Finogeev A.S.¹^,3, Musin A.F.¹, Petrzhik M.I.¹
Мекемелер:
1. National University of Science and Technology MISiS
2. Moscow Polytechnical University
3. JSC Aluminum Alloys Plant
Шығарылым: Том 124, № 2 (2023)
Беттер: 248-254
Бөлім: ПРОЧНОСТЬ И ПЛАСТИЧНОСТЬ
URL: https://rjmseer.com/0015-3230/article/view/662875
DOI: https://doi.org/10.31857/S0015323022100345
EDN: https://elibrary.ru/HJMCIK
ID: 662875

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Аннотация

The structure and properties of coatings formed on 2ххх and 7ххх aluminum alloys by plasma elec-trolytic oxidation (PEO) performed under the same conditions have been studied. The substrate material is shown to substantially affect the quality, structure, and properties of formed coatings. Compared to the D16 Т (4Cu, 1.4Mg wt %) alloy substrate, the V95 Т1 (6.2Zn, 2.4Mg, 1.7Cu wt %) alloy substrate favors the for-mation of coatings with a more homogeneous composition and uniform thickness, which exhibit great cohe-sive and adhesive strength and mechanical and tribological properties. The adhesive failure of PEO coatings formed on the V95 Т1 alloy occurs at a load of 63 N, which is substantially higher than the critical load (49 N) of coatings formed on the D16 T alloy. The maximum hardness of coatings formed on the V95 Т1 alloy is 25 GPa, which exceeds that of coatings formed on the D16 T alloy and is equal to 20 GPa. The wear resistance of coating in water, which is formed on the V95 Т1 alloy is 4.4 times higher compared to that of the wear-resistant coating formed on the D16 T alloy.

Негізгі сөздер

aluminum alloys, plasma electrolytic oxidation (PEO), functional coatings, structure, cohesive strength, adhesive strength, mechanical properties, tribological properties

Әдебиет тізімі

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