SU867941A1 - Aluminium-based alloy - Google Patents

Description

The content of magnesium in the alloy is 0.344 of the copper content (1.8 + 0.72).

Additives B, the proposed vanadium alloy (together with titanium), crushes the structure of silva, increases the resistance of the alloy to the mountains of trepidation, increases the aging effect. At the same time, vanadium in certain combinations with manganese and cobalt contributes to an increase in

Components, weight.

strength characteristics of the proposed alloy at elevated (up to 250 ° C) temperatures.

The chemical composition and properties of the alloys used are given in table. 1-4 (Table 3 shows the properties of alloys after various modes of artificial aging, Table 4 shows the mechanical properties of alloys at elevated temperatures).

Table 1

table 2

From the properties presented in the tables, it can be seen that the proposed alloy has improved casting characteristics; reduced tendency to the formation of hot cracks and higher rates of fluidity, which indicates the best workability of the proposed alloy during casting (blank and shaped) and the possibility of using it as a material to be welded.

The proposed alloy exceeds the known alloy in terms of strength and yield strength at elevated (up to 250 ° C) temperatures.

Table 3

The proposed alloy can be used as a constructional material to be welded, for the manufacture of structures that work for a short time at temperatures up to 250 ° C.

The use of the proposed alloy will reduce scrap during casting and welding, improve tightness, reliability of welded structures. Higher strength characteristics of the alloy will help reduce the weight of the structure.

Claims (2)

1. An aluminum-based alloy containing copper, magnesium, manganese, cobalt, titanium, iron and beryllium, characterized in that, in order to increase the mechanical and casting properties, it additionally contains vanadium in the following ratio of components, wt. %: Copper 4.65--5.85 Magnesium 3.1 -4.2 Manganese 0.15-0.75 Cobalt 0.05-0.5 Titanium 0.05-0.4 Vanadium 0.05-0.4 Iron 0 , 1 -0.45 Beryllium 0.001-0.005 Aluminum Else 2. Rafting on p. , characterized in that the magnesium is in a ratio that it contains equal to 0.344 of the copper content (1.8 ± 0.72). Sources of information taken into account in the examination 1. Copyright certificate USSR № 467134, cl. C 22 C 21/00, 1975. 2. USSR Copyright Certificate No. 668363, cl. C 22 C 21/16, 1979.