CN105132764A - High-tenacity aluminum magnesium alloy material and preparing method thereof - Google Patents
High-tenacity aluminum magnesium alloy material and preparing method thereof Download PDFInfo
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- CN105132764A CN105132764A CN201510516158.9A CN201510516158A CN105132764A CN 105132764 A CN105132764 A CN 105132764A CN 201510516158 A CN201510516158 A CN 201510516158A CN 105132764 A CN105132764 A CN 105132764A
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- hydronalium
- high tenacity
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Abstract
The invention discloses a high-tenacity aluminum magnesium alloy material and a preparing method thereof. The aluminum magnesium alloy comprises, by weight, 0.5%-0.9% of Rb, 1.1%-1.6% of Cs, 0.3%-0.8% of Ga, 0.2%-0.6% of Sb, 0.3%-0.7% of Hf, 0.1%-0.5% of Re, 0.3%-0.9% of Ge, 0.2%-0.5% of Zr, 24%-35% of Mg and the balance Al. The preparing method comprises the following steps that the components are smelted for 1-4 h inside a vacuum smelting furnace at the temperature of 520-580 DEG C; the temperature is increased to 1,150-1,260 DEG C, and melting is carried out for 2-5 h; the temperature is reduced to 720-780 DEG C, and insulating is carried out for 3-8 h; and casting is carried out to form an aluminum magnesium alloy ingot, and the high-tenacity aluminum magnesium alloy material is prepared through rod drawing.
Description
Technical field
The invention belongs to metallurgical material field, particularly relate to hydronalium of a kind of high tenacity and preparation method thereof.
Background technology
Aluminum magnesium alloy aluminium sheet matter heavily fortified point amount is light, density is low, thermal diffusivity is better, crushing resistance is comparatively strong, can fully meet 3C Product Highgrade integration, lightening, microminiaturized, resist and fall the requirement hitting electromagnetic shielding and heat radiation.Its hardness is the several times of conventional plastic casing, but weight is only the latter's 1/3rd.Aluminum magnesium alloy aluminium sheet alloying element mainly magnesium, magnesium content is between 3-5%.Principal feature is that density is low, and tensile strength is high, and unit elongation is high.Under equal area, aluminum magnesium alloy weighs less than other series..Therefore be commonly used in aviation aspect, such as fuel tanker.Apply also comparatively extensive in regular industrial.Complete processing is continuous casting and rolling, belongs to hot rolled aluminium series therefore can do oxidation deep processing.Aluminum magnesium alloy material capability is outstanding, and intensity is high, corrosion-resistant, durable, is easy to tint, and is used for making high-grade door and window.The above-mentioned application of aluminum magnesium alloy, all proposes higher requirement to the toughness of hydronalium.
Summary of the invention
The technical problem solved: the object of the invention is the problem that elongation at break is low, yield strength is low for existing hydronalium, propose a kind of technical scheme improving hydronalium elongation at break and tensile strength, improve physical strength and the toughness of existing hydronalium.
Technical scheme: the hydronalium that the invention discloses a kind of high tenacity, the hydronalium of described high tenacity comprises the composition of following weight parts:
Rb0.5wt%-0.9wt%、
Cs1.1wt%-1.6wt%、
Ga0.3wt%-0.8wt%、
Sb0.2wt%-0.6wt%、
Hf0.3wt%-0.7wt%、
Re0.1wt%-0.5wt%、
Ge0.3wt%-0.9wt%、
Zr0.2wt%-0.5wt%、
Mg24wt%-35wt%、
Surplus is Al.
As the preferred scheme of one, the hydronalium of described a kind of high tenacity, the hydronalium of described high tenacity comprises the composition of following weight parts:
Rb0.6wt%-0.8wt%、
Cs1.2wt%-1.5wt%、
Ga0.4wt%-0.7wt%、
Sb0.3wt%-0.5wt%、
Hf0.4wt%-0.6wt%、
Re0.2wt%-0.4wt%、
Ge0.4wt%-0.8wt%、
Zr0.3wt%-0.4wt%、
Mg28wt%-33wt%、
Surplus is Al.
A preparation method for the hydronalium of high tenacity as above, described preparation method's step is as follows:
Step 1: be Al by Rb0.5wt%-0.9wt%, Cs1.1wt%-1.6wt%, Ga0.3wt%-0.8wt%, Sb0.2wt%-0.6wt%, Hf0.3wt%-0.7wt%, Re0.1wt%-0.5wt%, Ge0.3wt%-0.9wt%, Zr0.2wt%-0.5wt%, Mg24wt%-35wt%, surplus respectively by weight percentage, by above-mentioned composition melting 1-4h at vacuum melting in-furnace temperature is 520-580 DEG C;
Step 2: Raise vacuum melting in-furnace temperature is 1150-1260 DEG C, then keeps temperature-resistant, melting 2-5h;
Step 3: by vacuum melting in-furnace temperature slow cooling to 720-780 DEG C, insulation 3-8h;
Step 4: be cast for aluminum magnesium alloy ingot, then alloy pig is drawn into bar is the hydronalium of high tenacity.
As the preferred scheme of one, the preparation method of the hydronalium of described a kind of high tenacity, in described step 1 at temperature is 550 DEG C melting 3h.
As the preferred scheme of one, the preparation method of the hydronalium of described a kind of high tenacity, in described step 2, Raise vacuum melting in-furnace temperature is 1220 DEG C.
As the preferred scheme of one, the preparation method of the hydronalium of described a kind of high tenacity, slow cooling to 750 DEG C in described step 3.
Beneficial effect: hydronalium prepared by preparation method of the present invention has very high elongation at break and yield strength, its elongation at break reaches 0.9% to 1.4%, its tensile strength is 168-186MPa, improve the physical strength of hydronalium, and then improve the performance of hydronalium, the application space of hydronalium can be expanded further.
Embodiment
Embodiment 1
Step 1: be Al by Rb0.5wt%, Cs1.6wt%, Ga0.3wt%, Sb0.2wt%, Hf0.7wt%, Re0.5wt%, Ge0.3wt%, Zr0.5wt%, Mg24wt%, surplus respectively by weight percentage, by above-mentioned composition melting 1h at vacuum melting in-furnace temperature is 580 DEG C;
Step 2: Raise vacuum melting in-furnace temperature is 1260 DEG C, then keeps temperature-resistant, melting 5h;
Step 3: by vacuum melting in-furnace temperature slow cooling to 780 DEG C, insulation 3h;
Step 4: be cast for aluminum magnesium alloy ingot, then alloy pig is drawn into bar is the hydronalium of high tenacity.
The elongation at break of the hydronalium of embodiment 1 is 0.9%, and its tensile strength is 172MPa.
Embodiment 2
Step 1: be Al by Rb0.9wt%, Cs1.1wt%, Ga0.8wt%, Sb0.6wt%, Hf0.3wt%, Re0.1wt%, Ge0.9wt%, Zr0.2wt%, Mg35wt%, surplus respectively by weight percentage, by above-mentioned composition melting 4h at vacuum melting in-furnace temperature is 520 DEG C;
Step 2: Raise vacuum melting in-furnace temperature is 1150 DEG C, then keeps temperature-resistant, melting 2h;
Step 3: by vacuum melting in-furnace temperature slow cooling to 720 DEG C, insulation 8h;
Step 4: be cast for aluminum magnesium alloy ingot, then alloy pig is drawn into bar is the hydronalium of high tenacity.
The elongation at break of the hydronalium of embodiment 1 is 1.0%, and its tensile strength is 168MPa.
Embodiment 3
Step 1: be Al by Rb0.6wt%, Cs1.5wt%, Ga0.7wt%, Sb0.5wt%, Hf0.6wt%, Re0.2wt%, Ge0.8wt%, Zr0.4wt%, Mg28wt%, surplus respectively by weight percentage, by above-mentioned composition melting 1h at vacuum melting in-furnace temperature is 580 DEG C;
Step 2: Raise vacuum melting in-furnace temperature is 1260 DEG C, then keeps temperature-resistant, melting 5h;
Step 3: by vacuum melting in-furnace temperature slow cooling to 780 DEG C, insulation 3h;
Step 4: be cast for aluminum magnesium alloy ingot, then alloy pig is drawn into bar is the hydronalium of high tenacity.
The elongation at break of the hydronalium of embodiment 3 is 1.2%, and its tensile strength is 175MPa.
Embodiment 4
Step 1: be Al by Rb0.8wt%, Cs1.2wt%, Ga0.4wt%, Sb0.3wt%, Hf0.4wt%, Re0.4wt%, Ge0.4wt%, Zr0.3wt%, Mg33wt%, surplus respectively by weight percentage, by above-mentioned composition melting 4h at vacuum melting in-furnace temperature is 520 DEG C;
Step 2: Raise vacuum melting in-furnace temperature is 1150 DEG C, then keeps temperature-resistant, melting 2h;
Step 3: by vacuum melting in-furnace temperature slow cooling to 720 DEG C, insulation 8h;
Step 4: be cast for aluminum magnesium alloy ingot, then alloy pig is drawn into bar is the hydronalium of high tenacity.
The elongation at break of the hydronalium of embodiment 4 is 1.1%, and its tensile strength is 176MPa.
Embodiment 5
Step 1: be Al by Rb0.7wt%, Cs1.4wt%, Ga0.5wt%, Sb0.4wt%, Hf0.5wt%, Re0.3wt%, Ge0.6wt%, Zr0.3wt%, Mg30wt%, surplus respectively by weight percentage, by above-mentioned composition melting 3h at vacuum melting in-furnace temperature is 550 DEG C;
Step 2: Raise vacuum melting in-furnace temperature is 1220 DEG C, then keeps temperature-resistant, melting 4h;
Step 3: by vacuum melting in-furnace temperature slow cooling to 750 DEG C, insulation 5h;
Step 4: be cast for aluminum magnesium alloy ingot, then alloy pig is drawn into bar is the hydronalium of high tenacity.
The elongation at break of the hydronalium of embodiment 5 is 1.4%, and its tensile strength is 186MPa.
Comparative example 1
Step 1: be Al by Rb0.5wt%, Cs1.6wt%, Ga0.3wt%, Sb0.2wt%, Hf0.7wt%, Re0.5wt%, Mg24wt%, surplus respectively by weight percentage, by above-mentioned composition melting 1h at vacuum melting in-furnace temperature is 580 DEG C;
Step 2: Raise vacuum melting in-furnace temperature is 1260 DEG C, then keeps temperature-resistant, melting 5h;
Step 3: by vacuum melting in-furnace temperature slow cooling to 780 DEG C, insulation 3h;
Step 4: be cast for aluminum magnesium alloy ingot, then alloy pig is drawn into bar is the hydronalium of high tenacity.
The elongation at break of the hydronalium of comparative example 1 is 0.5%, and its tensile strength is 151MPa.
Comparative example 2
Step 1: be Al by Rb0.5wt%, Cs1.6wt%, Ga0.3wt%, Sb0.2wt%, Ge0.3wt%, Zr0.5wt%, Mg24wt%, surplus respectively by weight percentage, by above-mentioned composition melting 1h at vacuum melting in-furnace temperature is 580 DEG C;
Step 2: Raise vacuum melting in-furnace temperature is 1260 DEG C, then keeps temperature-resistant, melting 5h;
Step 3: by vacuum melting in-furnace temperature slow cooling to 780 DEG C, insulation 3h;
Step 4: be cast for aluminum magnesium alloy ingot, then alloy pig is drawn into bar is the hydronalium of high tenacity.
The elongation at break of the hydronalium of comparative example 2 is 0.4%, and its tensile strength is 147MPa.
Claims (6)
1. a hydronalium for high tenacity, is characterized in that, the hydronalium of described high tenacity comprises the composition of following weight parts:
Rb0.5wt%-0.9wt%、
Cs1.1wt%-1.6wt%、
Ga0.3wt%-0.8wt%、
Sb0.2wt%-0.6wt%、
Hf0.3wt%-0.7wt%、
Re0.1wt%-0.5wt%、
Ge0.3wt%-0.9wt%、
Zr0.2wt%-0.5wt%、
Mg24wt%-35wt%、
Surplus is Al.
2. the hydronalium of a kind of high tenacity according to claim 1, is characterized in that, the hydronalium of described high tenacity comprises the composition of following weight parts:
Rb0.6wt%-0.8wt%、
Cs1.2wt%-1.5wt%、
Ga0.4wt%-0.7wt%、
Sb0.3wt%-0.5wt%、
Hf0.4wt%-0.6wt%、
Re0.2wt%-0.4wt%、
Ge0.4wt%-0.8wt%、
Zr0.3wt%-0.4wt%、
Mg28wt%-33wt%、
Surplus is Al.
3. a preparation method for the hydronalium of high tenacity as claimed in claim 1, is characterized in that, described preparation method's step is as follows:
Step 1: be Al by Rb0.5wt%-0.9wt%, Cs1.1wt%-1.6wt%, Ga0.3wt%-0.8wt%, Sb0.2wt%-0.6wt%, Hf0.3wt%-0.7wt%, Re0.1wt%-0.5wt%, Ge0.3wt%-0.9wt%, Zr0.2wt%-0.5wt%, Mg24wt%-35wt%, surplus respectively by weight percentage, by above-mentioned composition melting 1-4h at vacuum melting in-furnace temperature is 520-580 DEG C;
Step 2: Raise vacuum melting in-furnace temperature is 1150-1260 DEG C, then keeps temperature-resistant, melting 2-5h;
Step 3: by vacuum melting in-furnace temperature slow cooling to 720-780 DEG C, insulation 3-8h;
Step 4: be cast for aluminum magnesium alloy ingot, then alloy pig is drawn into bar is the hydronalium of high tenacity.
4. the preparation method of the hydronalium of a kind of high tenacity according to claim 3, is characterized in that, in described step 1 at temperature is 550 DEG C melting 3h.
5. the preparation method of the hydronalium of a kind of high tenacity according to claim 3, is characterized in that, in described step 2, Raise vacuum melting in-furnace temperature is 1220 DEG C.
6. the preparation method of the hydronalium of a kind of high tenacity according to claim 3, is characterized in that, slow cooling to 750 DEG C in described step 3.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109402467A (en) * | 2019-01-10 | 2019-03-01 | 广东荻赛尔机械铸造股份有限公司 | Aluminum-magnesium alloy material and its preparation method and application |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0489427A1 (en) * | 1990-12-05 | 1992-06-10 | Sumitomo Metal Industries, Ltd. | Surface-coated aluminum material |
| CN103103395A (en) * | 2012-11-09 | 2013-05-15 | 安徽欣意电缆有限公司 | Al-Fe-Au-RE aluminium alloy, preparation method thereof and power cable |
| CN103589920A (en) * | 2013-11-16 | 2014-02-19 | 袁辉 | Magnesium aluminum alloy |
| CN104674080A (en) * | 2015-03-09 | 2015-06-03 | 苏州圣谱拉新材料科技有限公司 | Mg/Al alloy material and preparation method thereof |
-
2015
- 2015-08-21 CN CN201510516158.9A patent/CN105132764A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0489427A1 (en) * | 1990-12-05 | 1992-06-10 | Sumitomo Metal Industries, Ltd. | Surface-coated aluminum material |
| CN103103395A (en) * | 2012-11-09 | 2013-05-15 | 安徽欣意电缆有限公司 | Al-Fe-Au-RE aluminium alloy, preparation method thereof and power cable |
| CN103589920A (en) * | 2013-11-16 | 2014-02-19 | 袁辉 | Magnesium aluminum alloy |
| CN104674080A (en) * | 2015-03-09 | 2015-06-03 | 苏州圣谱拉新材料科技有限公司 | Mg/Al alloy material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109402467A (en) * | 2019-01-10 | 2019-03-01 | 广东荻赛尔机械铸造股份有限公司 | Aluminum-magnesium alloy material and its preparation method and application |
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Application publication date: 20151209 |
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