Effect of Co and Sc on mechanical properties and corrosion resistance of middle-strength Al–Zn–Mg alloy with small addition of Cu

Ryabov D.K., Kolobnev N.I., Ivanova A.O.
UDC
621.791
DOI
10.18577/2307-6046-2016-0-6-1-1
Article PDF (Russian) (716.86 KB)
How to cite
Ryabov D.K., Kolobnev N.I., Ivanova A.O. Effect of Co and Sc on mechanical properties and corrosion resistance of middle-strength Al–Zn–Mg alloy with small addition of Cu // Proceedings of VIAM. 2016. No. 6. DOI: 10.18577/2307-6046-2016-0-6-1-1. URL: https://test.viam.ru/en/journal/2016/6/1
Keywords
Al–Zn–Mg(–Cu), Al-Zn-Mg(–Cu), extrusions, ingots, microstructure, alloying, cobalt, scandium.
Abstract

Improvement of characteristics of aluminum alloys is a topical issue because of increasing requirements to weight efficiency of advanced structures for aeronautic and mechanical engineering. One of ways to improve strength of aluminum alloys is the alloying with elements, which modifies structure. This paper deals with the results of research of the influence of scandium and cobalt on microstructure of ingots and extruded profiles of aluminum alloy of 1913 type as well as their influence on tensile strength and corrosion resistance after complete cycle of heat treatment. Work is executed within implementation of the complex scientific direction 8.1 «High-strength welded aluminum and aluminum - lithium alloys with lower density andincreased fracture toughness» («The strategic directions of development of materials and technologies of their processing for the period till 2030»)

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