Investigation of effect of silver small additives on structure and properties of resource Al–Cu–Mg alloys

Ivanova A.O., Vakhromov R.O., Grigoriev M.V., Senatorova O.G.
Ivanova A.O., Vakhromov R.O., Grigoriev M.V., Senatorova O.G. Investigation of effect of silver small additives on structure and properties of resource Al–Cu–Mg alloys // Proceedings of VIAM. 2014. No. 10. DOI: 10.18577/2307-6046-2014-0-10-1-1. URL: https://test.viam.ru/en/journal/2014/10/1
Abstract

Thermodynamic calculation of phase structure of resource Al–Cu–Mg system alloys with and without Ag additive was carried out. The effect of small additive of silver on structure and properties of 1,5–2,0 mm thickness sheets of Al–Cu–Mg alloys in naturally aged condition was investigated. It is shown that silver in amount up to 0,6 wt. % leads to increasing of strength characteristics (up to 10%,) fatigue durability (more, than by 15%), crack resistance (up to 10%) and resistance to corrosion cracking with preservation of relative elongation level. Addition of silver in Al–Cu–Mg system alloys is a perspective way of increasing a service life and reliability of articles of aeronautical engineering.

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