Aluminum-based alloy

FIELD: metallurgy of aluminum alloys; manufacture of wrought semi-finished products for transport engineering and other industries.

SUBSTANCE: proposed alloy includes the following components, mass-%: zinc, 3.6-4.1; magnesium, 0.6-1.1; manganese, 0.2-0.5; zirconium, 0.05-0.12; chromium, 0.05-0.15; copper, 0.1-0.2; titanium, 0.01-0.06; molybdenum, 0.01-0.06; the remainder being aluminum.

EFFECT: enhanced corrosion resistance and technological ductility of semi-finished items at plastic metal working.

2 tbl, 1 ex

 

The present invention relates to the field of metallurgy, in particular to alloys based on aluminium, for the manufacture of the deformed semi-finished products used in transportation and other fields of national economy.

Known alloy system aluminum-zinc-magnesium composition, wt%:

Zinc3,6-4,1
Magnesium0,6-1,1
Manganese0,2-0,5
Zirconia0,15-0,22
Cerium0,0001-0,005
Aluminumrest

(Deposited manuscript "Aluminum alloy 1935" No. TO 4460 dated September 19, 1980; published Mrs "technical features", series T, issue 39, 1980).

The disadvantage of the alloy is low corrosion resistance and, consequently, a shorter lifetime of the products from this alloy.

Also known alloy based on aluminum composition, wt%:

Zinc3,4-4,0
Magnesium1,3-1,8
Manganese0,2-0,6
Zirconia0,15-0,22
Chrome0,08-0,20
Aluminumrest

(Aluminum alloys. The Handbook. Structure properties of semi-finished products from aluminum alloys. M.: metallurgy, 1984, str-282), the prototype.

The disadvantage of this alloy are low technological plasticity in processing pressure (low speed expiration during pressing, a high surface pressure and low corrosion resistance.

Features alloy based on aluminum composition, wt%:

Zinc3,6-4,1
Magnesium0,6-1,1
Manganese0,2-0,5
Zirconia0,05-0,12
Chrome0,05-0,15
Copper0,1-0,2
Titanium0,01-0,06
Molybdenum0,01-0,06
Aluminumthe rest of it.

We offer alloy differs from the prototype in that it additionally contains copper, titanium and molybdenum in the following ratio of components, wt%:

td align="left"> Aluminum
Zinc3,6-4,1
Magnesium0,6-1,1
Manganese0,2-0,5
Zirconia0,05-0,12
Chrome0,05-0,15
Copper0,1-0,2
Titanium0,01-0,06
Molybdenum0,01-0,06
the rest of it.

Technical result - increasing technological plasticity in the processing pressure, which reduces the production of semi-finished and gives the opportunity to obtain products of a more complex form with a simultaneous increase of the corrosion resistance obtained from the proposed alloy products and, consequently, increasing their lifespan.

The composition and ratio of the components in the proposed alloy provides a uniform structure due to the uniform distribution by volume of the alloy compact particles of zinc-magnesium phase- tiMgZn2with dissolved copper in them and dispersoids Al6Mn, Al3Zr, Al3Ti, Al3Mo.

The homogeneity of the structure results in high technological plasticity of ingots in steel production and high resistance to stress corrosion corrosion and dissecting.

Example. The continuous casting method were obtained ingots with a diameter of 134 mm, we offer alloy and alloy prototype. The chemical composition of the alloy cast ingots are shown in table 1.

Table 1
No. SPL p/pAlloyZnMgMnZrTi CuCrMoAl
1Known3,71,50,350,18--0,15-Rest
2Offera 3.90,90,350,090,030,120,110,03Rest

After homogenizing the ingot was extruded into strips 8×100 mm at a temperature of 420-430°With that then was tempered by the press. The tests were carried out after artificial aging regime 100°C, 20 h + 150°S, 10 h, and after natural aging for 3 months.

Thermally toughened strips was investigated using the methods of metallography and determining the corrosion properties. Technology in metallurgical production was estimated by the rate of expiration during pressing and at the lowest possible wall thickness of the compression profile. The results of the study extruded strips are shown in table 2.

Tests on dissecting corrosion was carried out according to GOST 9.904-82. Evaluation of resistance against dissecting corrosion is carried out on a 10-point scale (resistance decreases with increasing score from 1 to 10).

Tests on corrosion of p is d voltage was carried out according to GOST 9.901.4-89. Base test 90 days.

Table 2
PropertyKnown alloyWe offer alloy
A natural. agingThe artificial. agingA natural. agingArts. aging
Dissecting corrosion, score8472
The time to fracture when tested for corrosion under tension when the σ=200 MPa, the day1436>90>90
The flow rate during pressing m/min˜10˜18
Minimum wall thickness profile, mm2,01,4

Thus, the proposed composition of the alloy can improve the technological plasticity in metallurgy and corrosion resistance of semi-finished products. Increased corrosion resistance prolongs the life of semi-finished products depending on the operating conditions of the product in 1.5-4 times.

The base alloy of aluminum containing zinc, magnesium, manganese, chromium, zirconium, copper, titanium, ex is different, however, he further comprises molybdenum in the following ratio, wt.%:

Zinc3,6-4,1
Magnesium0,6-1,1
Manganese0,2-0,5
Zirconia0,05-0,12
Chrome0,05-0,15
Copper0,1-0,2
Titanium0,01-0,06
Molybdenum0,01-0,06
AluminumRest



 

Same patents:
Aluminum-base alloy // 2280092

FIELD: metallurgy.

SUBSTANCE: invention relates to aluminum-base alloys used for making deformed semifinished products used in industry and building. Proposed alloy comprises the following components, wt.-%: zinc, 4.5-5.6; magnesium, 1.6-2.1; manganese, 0.2-0.8; scandium, 0.03-0.09; zirconium, 0.05-0.12; copper, 0.1-0.3; titanium, 0.01-0.07; molybdenum, 0.01-0.07; cerium, 0.001-0.01, and aluminum, the balance, wherein the ratio content of zinc to magnesium = 2.6-2.9. Invention provides the development of alloy providing enhancing corrosion resistance of articles.

EFFECT: improved and valuable properties of alloy.

2 tbl, 1 ex

FIELD: metallurgy.

SUBSTANCE: aluminum based protective alloy comprises, in mass %, 4-5 of zinc, 0.01-0.06 of indium, 0.01-0.1 solder, 0.01-0.1 of zirconium, and aluminum the remainder.

EFFECT: enhanced corrosion protection.

2 tbl

The invention relates to alloys based on aluminium system Al-Zn-Mg-Cu, intended for use as structural materials in the manufacture of casings and elements of the power set, such as stringers, power beams, etc. used in aerospace engineering, operating in all, including marine conditions, and also used in marine, land transport and other branches of engineering

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FIELD: metallurgy.

SUBSTANCE: aluminum based protective alloy comprises, in mass %, 4-5 of zinc, 0.01-0.06 of indium, 0.01-0.1 solder, 0.01-0.1 of zirconium, and aluminum the remainder.

EFFECT: enhanced corrosion protection.

2 tbl

Aluminum-base alloy // 2280092

FIELD: metallurgy.

SUBSTANCE: invention relates to aluminum-base alloys used for making deformed semifinished products used in industry and building. Proposed alloy comprises the following components, wt.-%: zinc, 4.5-5.6; magnesium, 1.6-2.1; manganese, 0.2-0.8; scandium, 0.03-0.09; zirconium, 0.05-0.12; copper, 0.1-0.3; titanium, 0.01-0.07; molybdenum, 0.01-0.07; cerium, 0.001-0.01, and aluminum, the balance, wherein the ratio content of zinc to magnesium = 2.6-2.9. Invention provides the development of alloy providing enhancing corrosion resistance of articles.

EFFECT: improved and valuable properties of alloy.

2 tbl, 1 ex

FIELD: metallurgy of aluminum alloys; manufacture of wrought semi-finished products for transport engineering and other industries.

SUBSTANCE: proposed alloy includes the following components, mass-%: zinc, 3.6-4.1; magnesium, 0.6-1.1; manganese, 0.2-0.5; zirconium, 0.05-0.12; chromium, 0.05-0.15; copper, 0.1-0.2; titanium, 0.01-0.06; molybdenum, 0.01-0.06; the remainder being aluminum.

EFFECT: enhanced corrosion resistance and technological ductility of semi-finished items at plastic metal working.

2 tbl, 1 ex

FIELD: metallurgy.

SUBSTANCE: invention relates to aluminum-base material. Proposed material comprises the following components, wt.-%: zinc, 6-8; magnesium, 2.5-3.5; nickel, 0.6-1.4; iron, 0.4-1.0; silicon, 0.02-0.2; zirconium, 0.1-0.3; scandium, 0.05-0.2, and aluminum, the balance wherein the temperature of equilibrium solidus of material is 540°C, not less, the hardness value of material is 200 HV, not less. Invention provides the development of the novel high-strength material designated for both producing fashioned ingots and deformed semifinished product possessing high mechanical properties. Invention can be used in making articles working under effect of high loading, such as car articles and sport inventory articles.

EFFECT: improved and valuable properties of material.

4 cl, 2 dwg, 4 tbl, 3 ex

FIELD: nonferrous metallurgy.

SUBSTANCE: invention relates to ultrastrong economically alloyed aluminum-based alloys belonging to system Al-Zn-Mg-Cu. Alloy and article made therefrom are, in particular, composed of, %: zinc 3.5-4.85, copper 0.3-1.0, magnesium 1.2-2.2, manganese 0.15-0.6, chromium 0.01-0.3, iron 0.01-0.15, silicon 0.01-0.12, scandium 0.05-0.4, at least one element from group: zirconium 0.05-0.15, cerium 0.005-0.25, and aluminum - the rest.

EFFECT: increased characteristics of corrosion resistance, bondability with all welding techniques, and lowered fatigue crack growth rate.

2 cl, 2 tbl

FIELD: metallurgy.

SUBSTANCE: invention proposes alloy containing the following components, wt.-%: zinc, 5.4-6.2; magnesium, 2.51-3.0; manganese, 0.1-0.3; chrome, 0.12-0.25; titanium, 0.03-0.10; zirconium, 0.07-0.12; beryllium, 0.0002-0.005; sodium, 0.0001-0.0008; copper, 0.2, not above; iron, 0.3, not above; silicon, 0.2, not above, and aluminum, the balance. Alloy provides enhancing uniformity of armor structure and its welded seams, stable armor resistance of extended armor welded seams independently on disposition of units to bed welded, elimination of splits from armor rear site in case its resistance to a missile impact, elimination possibility for reducing tenacity of armor during its exploitation including using under conditions of combination with dynamic protection of armored-body and armor-carrying mechanized objects. Invention can be used in producing armor for individual protection and for protection of mechanized armor-carrying objects against effecting agents.

EFFECT: improved and valuable properties of alloy.

1 tbl

FIELD: metallurgy.

SUBSTANCE: invention proposes alloy comprising the following components, wt.-%: zinc, 4.7-5.3; magnesium, 2.1-2.6; chrome, 0.12-0.25; titanium, 0.03-0.10; zirconium, 0.07-0.12; beryllium, 0.0002-0.005; iron, 0.05-0.35; silicon, 0.05-0.25; boron, 0.0003-0.003; sodium, 0.0001-0.0008; copper, 0.2, not above, and aluminum, the balance. Proposed alloy provides enhancing the armor structure uniformity and its welded joints, to provide stable armor resistance of extended welded joints of armor and independently of location of units to be welded, to exclude splitting off from rear side of armor in case armor not piercing by a missile, to exclude possibility for decreasing tenacity of armor in exploitation including using under conditions of combination with external dynamic protection of armored-carcass and armored-carrying mechanized objects. Invention can be used in producing armor for armored-carrying equipment for protection against effect of affection agents.

EFFECT: improved and valuable technical properties of alloy.

FIELD: metallurgy.

SUBSTANCE: invention proposes alloy comprising the following components, wt.-%: zinc, 4.7-5.3; magnesium, 2.1-2.6; manganese, 0.05-0.15; chrome, 0.12-0.25; titanium, 0.03-0.10; zirconium, 0.07-0.12; beryllium, 0.0002-0.005; iron, 0.05-0.35; silicon, 0.05-0.25; sodium, 0.0001-0.0008; copper, 0.2, not above, and aluminum, the balance. Proposed alloy provides enhancing armor structure uniformity and its welded joins, to provides stable armor resistance of armor welded joints being independently on location of units to be welded, to exclude splitting off from rear side of armor in case armor not piercing by missile, to provide high tenacity of armor including its using under conditions of combination with external dynamic protection of armored-carcass and armor-carrying mechanized objects. Invention can be used in producing armor for armor-carrying equipment for its protection against protection of affecting agents.

EFFECT: improved and valuable properties of alloy.

FIELD: metallurgy.

SUBSTANCE: the present innovation deals with obtaining aluminum-based alloys necessary for manufacturing stampings, particularly those of automobile wheels disks. The alloy in question has got the following composition, weight%: copper 0.8-2.2; magnesium 1.2-2.6; manganese 0.2-0.6; iron ≤0.25; silicon ≤0.20; zinc 5.0-6.8; titanium ≤0.1; chromium 0.08-0.17; zirconium 0.01÷0.12; boron 0.0008-0.005; antimony 2.5-3.5; indium 2.5-3.5; boron 0.4-0.5; hydrogen (0.3-4.1)10-5, aluminum - the rest. The alloy in question is of optimal combination of strength and plasticity that guarantee the required level of performance characteristics of automobile wheels disks, the decrease of their weight in combination with high technological effectiveness at volumetric stamping, especially complex-shaped articles.

EFFECT: higher strength and plasticity of the alloy.

2 cl, 1 ex, 3 tbl

Aluminum-base alloy // 2319762

FIELD: metallurgy, alloys.

SUBSTANCE: invention relates to compositions of deformable aluminum-base alloys. Proposed alloy comprises the following components, wt.-%: zinc, 5.0-7.0; magnesium, 0.4-0.8; copper, 0.8-1.2; manganese, 0.8-1.2; zirconium, 0.2-0.3; titanium, 0.2-0.3; niobium, 0.2-0.3; nickel, 3.0-5.0; boron, 0.02-0.03, and aluminum, the balance. Proposed alloy possesses the enhanced strength. Proposed alloys can be used in aircraft construction and automobile construction.

EFFECT: improved and valuable property of alloy.

1 tbl

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