CN107739946A - A kind of corrosion-resistant magnesium alloy and preparation method thereof - Google Patents

A kind of corrosion-resistant magnesium alloy and preparation method thereof Download PDF

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Publication number
CN107739946A
CN107739946A CN201711252053.2A CN201711252053A CN107739946A CN 107739946 A CN107739946 A CN 107739946A CN 201711252053 A CN201711252053 A CN 201711252053A CN 107739946 A CN107739946 A CN 107739946A
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magnesium
magnesium alloy
corrosion
alloy
ingot
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朱旭
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/03—Making non-ferrous alloys by melting using master alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C23/00—Alloys based on magnesium
    • C22C23/04—Alloys based on magnesium with zinc or cadmium as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/34—Sputtering
    • C23C14/35—Sputtering by application of a magnetic field, e.g. magnetron sputtering

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

The invention discloses a kind of corrosion-resistant magnesium alloy, the mass percent composition of the corrosion-resistant magnesium alloy is：Zn 5% 8%, Y 0.5% 1%, Nd 0.1% 0.5%, Mn 0.3% 0.5%, Sn 0.8% 1.2%, Si 0.1% 0.3%, C 2% 3%, Ni 4% 6%, remaining is Mg.Its preparation process includes fusing metal ingot and quartz, then adds alloy pig, then cast, and finally annealing obtains corrosion-resistant magnesium alloy.The magnesium alloy of the present invention has good Corrosion Protection, while has higher intensity and toughness.

Description

A kind of corrosion-resistant magnesium alloy and preparation method thereof
Technical field
The present invention relates to a kind of metallic material alloy and preparation method thereof, particularly a kind of corrosion-resistant magnesium alloy and its preparation Method.
Background technology
Magnesium alloy is that the alloy that other elements form is added by base of magnesium.Small with density, specific strength is high, compares modulus of elasticity Greatly, good heat dissipation, the characteristics such as absorb shock resistance is good.It is mainly used in the industrial departments such as Aeronautics and Astronautics, transport, chemical industry, rocket.But due to The chemism of magnesium is high, and magnesium alloy overall corrosion resistance can be poor, significantly limit the application of magnesium alloy.
The content of the invention
Can be poor for above-mentioned magnesium alloy overall corrosion resistance the problem of, the invention provides a kind of corrosion-resistant magnesium alloy, With good decay resistance.
The technical solution adopted by the present invention is as follows：
A kind of corrosion-resistant magnesium alloy, the mass percent composition of the corrosion-resistant magnesium alloy are：Zn 5%-8%, Y 0.5%-1%, Nd 0.1%-0.5%, Mn 0.3%-0.5%, Sn 0.8%-1.2%, Si 0.1%-0.3%, C 2%- 3%, Ni 4%-6%, remaining is Mg.
Rare earth metal y and Nd are added in the magnesium alloy preparation process of the present invention, because rare earth metal y and Nd addition can Improve the degree that becomes more meticulous of magnesium alloy so that Magnesium Alloy is more uniform, reduces self-corrosion rate, therefore can improve magnesium conjunction The corrosion resistance and extrusion speed of gold, improve surface smoothness, the intensity and toughness of material.Intensified element is added in the present invention Zinc can increase the hardness of magnesium alloy, while manganese is added in preparation process, it is possible to increase the decay resistance of magnesium alloy, simultaneously The addition of tin element also being capable of the hardness of reinforced alloys material and the ability of corrosion resistance.Simultaneously in the preparation process of magnesium alloy Middle SI is added in the form of quartz, and heat release in-situ reaction in situ, which occurs, with magnesium by quartz generates Mg2Si phases, Mg2Si has Gao Rong Point, high rigidity, high elastic modulus, excellent high-temperature behavior and heat endurance, the high temperature of small and dispersed distribution is formed in grain boundaries Stable phase Mg2Si, stable crystal boundary improve creep resistance.Therefore, the present invention is by selecting different metallic elements different with allotment The content of component so that the hardness and corrosion resistance of magnesium alloy greatly improve.
Preferably, the mass percent composition of the corrosion-resistant magnesium alloy is：Zn 6%-7%, Y 0.6%-0.8%, Nd 0.2%-0.4%, Mn 0.4%-0.5%, Sn 0.8%-1%, Si 0.1%-0.2%, C 2.5%-2.8%, Ni 5%- 6%, remaining is Mg.
Preferably, the corrosion-resistant magnesium alloy, it is characterised in that the raw material of the Corrosion resistant magnesium alloy material include： Magnesium ingot, zinc ingot metal, tin slab, quartz, magnesium manganese intermediate alloy ingot, magnesium yttrium intermediate alloy ingot, magnesium neodymium intermediate alloy ingot, metallic nickel and stone Ink.
The present invention is using the domestic magnesium ingot largely produced and sold, zinc ingot metal, tin slab, quartz and magnesium system intermediate alloy ingot Material, wide material sources, cost are cheap.
Preferably, described corrosion-resistant magnesium alloy and preparation method thereof, comprises the following steps：
(1) raw materials such as magnesium ingot, zinc ingot metal, tin slab, quartz are added into melting furnace melting, magnesium alloy liquation is made；
(2) the magnesium alloy liquation after fusing is risen to 700 DEG C -750 DEG C, is incubated 20-30min, added among magnesium yttrium and close Ingot, magnesium neodymium intermediate alloy, ingot magnesium manganese intermediate alloy ingot, 700 DEG C -750 DEG C of keeping temperature after fusing, 12-15min is incubated, so After be cooled to 650 DEG C -680 DEG C, be incubated 1-2h, obtain refining magnesium alloys liquation；
(3) the magnesium alloy liquation of refining is maintained the temperature between 650 DEG C -680 DEG C and poured into a mould, magnesium alloy base is made；
(4) magnesium alloy base is annealed, being passed through argon gas during annealing is protected, and magnesium alloy is made after the completion of annealing；
(5) magnesium alloy of acquisition is plated into Ni-C films as target using metallic nickel and graphite by the use of magnetron sputtering on its surface Layer.
The present invention is using metallic nickel and graphite as the target of magnetron sputtering, by magnetron sputtering in the aluminium alloy material prepared Ni-C film layers are plated in material, further improve the corrosive nature of magnesium alloy.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1. the magnesium alloy of the present invention has good Corrosion Protection, while has higher intensity and toughness.
2. the raw material sources of present invention synthesis magnesium alloy are extensive, cost is cheap.
3. layer of Ni-C layers are plated in its surface by the magnesium alloy prepared by the present invention by the way of magnetron sputtering.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive Feature and/or step beyond, can combine in any way.
Embodiment 1
The standard chemical composition of the corrosion-resistant magnesium alloy of the present invention and internally controlling requirement are as follows：Zn 5%-8%, Y 0.5%- 1%, Nd 0.1%-0.5%, Mn 0.3%-0.5%, Sn 0.8%-1.2%, Si 0.1%-0.3%, C 2%-3%, Ni 4%-6%, remaining is Mg.
The preparation method of corrosion-resistant magnesium alloy, comprises the following steps：
(1) raw materials such as magnesium ingot, zinc ingot metal, tin slab, quartz are added into melting furnace melting, magnesium alloy liquation is made；
(2) the magnesium alloy liquation after fusing is risen to 700 DEG C, is incubated 20min, adds magnesium yttrium intermediate alloy ingot, magnesium neodymium Intermediate alloy, ingot magnesium manganese intermediate alloy ingot, 700 DEG C of keeping temperature after fusing, 12min is incubated, is then cooled to 650 DEG C, insulation 1h, obtain refining magnesium alloys liquation；
(3) the magnesium alloy liquation of refining is maintained the temperature between 650 DEG C and poured into a mould, magnesium alloy base is made；
(4) magnesium alloy base is annealed, being passed through argon gas during annealing is protected, and magnesium alloy is made after the completion of annealing；
(5) magnesium alloy of acquisition is plated into Ni-C films as target using metallic nickel and graphite by the use of magnetron sputtering on its surface Layer.
Embodiment 2
The standard chemical composition of the corrosion-resistant magnesium alloy of the present invention and internally controlling requirement are as follows：Zn 6%-7%, Y 0.6%- 0.8%, Nd 0.2%-0.4%, Mn 0.4%-0.5%, Sn 0.8%-1%, Si 0.1%-0.2%, C 2.5%- 2.8%, Ni 5%-6%, remaining is Mg.
The preparation method of corrosion-resistant magnesium alloy, comprises the following steps：
(1) raw materials such as magnesium ingot, zinc ingot metal, tin slab, quartz are added into melting furnace melting, magnesium alloy liquation is made；
(2) the magnesium alloy liquation after fusing is risen to 750 DEG C, is incubated 30min, adds magnesium yttrium intermediate alloy ingot, magnesium neodymium Intermediate alloy, ingot magnesium manganese intermediate alloy ingot, 750 DEG C of keeping temperature after fusing, 15min is incubated, is then cooled to 680 DEG C, insulation 2h, obtain refining magnesium alloys liquation；
(3) the magnesium alloy liquation of refining is maintained the temperature at into 680 DEG C to be poured into a mould, magnesium alloy base is made；
(4) magnesium alloy base is annealed, being passed through argon gas during annealing is protected, and magnesium alloy is made after the completion of annealing；
(5) magnesium alloy of acquisition is plated into Ni-C films as target using metallic nickel and graphite by the use of magnetron sputtering on its surface Layer.
Embodiment 3
The standard chemical composition of the corrosion-resistant magnesium alloy of the present invention and internally controlling requirement are as follows：Zn 5%-6%, Y 0.5%- 0.6%, Nd 0.1%-0.2%, Mn 0.3%-0.4%, Sn 0.8%-1%, Si 0.1%-0.2%, C 2%-2.5%, Ni 4%-5%, remaining is Mg.
The preparation method of corrosion-resistant magnesium alloy, comprises the following steps：
(1) raw materials such as magnesium ingot, zinc ingot metal, tin slab, quartz are added into melting furnace melting, magnesium alloy liquation is made；
(2) the magnesium alloy liquation after fusing is risen to 750 DEG C, is incubated 30min, adds magnesium yttrium intermediate alloy ingot, magnesium neodymium Intermediate alloy, ingot magnesium manganese intermediate alloy ingot, 750 DEG C of keeping temperature after fusing, 15min is incubated, is then cooled to 680 DEG C, insulation 2h, obtain refining magnesium alloys liquation；
(3) the magnesium alloy liquation of refining is maintained the temperature at into 680 DEG C to be poured into a mould, magnesium alloy base is made；
(4) magnesium alloy base is annealed, being passed through argon gas during annealing is protected, and magnesium alloy is made after the completion of annealing；
(5) magnesium alloy of acquisition is plated into Ni-C films as target using metallic nickel and graphite by the use of magnetron sputtering on its surface Layer.
Embodiment 4
The standard chemical composition of the corrosion-resistant magnesium alloy of the present invention and internally controlling requirement are as follows：Zn 7%-8%, Y 0.8%- 1%, Nd 0.4%-0.5%, Mn 0.4%-0.5%, Sn 1%-1.2%, Si 0.2%-0.3%, C 2.8%-3%, Ni 5%-6%, remaining is Mg.
The preparation method of corrosion-resistant magnesium alloy, comprises the following steps：
(1) raw materials such as magnesium ingot, zinc ingot metal, tin slab, quartz are added into melting furnace melting, magnesium alloy liquation is made；
(2) the magnesium alloy liquation after fusing is risen to 700 DEG C, is incubated 20min, adds magnesium yttrium intermediate alloy ingot, magnesium neodymium Intermediate alloy, ingot magnesium manganese intermediate alloy ingot, 700 DEG C of keeping temperature after fusing, 12min is incubated, is then cooled to 650 DEG C, insulation 1h, obtain refining magnesium alloys liquation；
(3) the magnesium alloy liquation of refining is maintained the temperature between 650 DEG C and poured into a mould, magnesium alloy base is made；
(4) magnesium alloy base is annealed, being passed through argon gas during annealing is protected, and magnesium alloy is made after the completion of annealing；
(5) magnesium alloy of acquisition is plated into Ni-C films as target using metallic nickel and graphite by the use of magnetron sputtering on its surface Layer.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto, It is any to be familiar with those skilled in the art in the technical scope of present disclosure, technique according to the invention scheme and its hair Bright design is subject to equivalent substitution or change, should all be included within the scope of the present invention.

Claims (4)

1. a kind of corrosion-resistant magnesium alloy, it is characterised in that the mass percent of the corrosion-resistant magnesium alloy, which forms, is：Zn 5%- 8%, Y 0.5%-1%, Nd 0.1%-0.5%, Mn 0.3%-0.5%, Sn 0.8%-1.2%, Si 0.1%-0.3%, C 2%-3%, Ni 4%-6%, remaining is Mg.
A kind of 2. corrosion-resistant magnesium alloy according to claim 1, it is characterised in that the quality hundred of the corrosion-resistant magnesium alloy Divide than composition and be：Zn 6%-7%, Y 0.6%-0.8%, Nd 0.2%-0.4%, Mn 0.4%-0.5%, Sn 0.8%- 1%, Si 0.1%-0.2%, C 2.5%-2.8%, Ni 5%-6%, remaining is Mg.
A kind of 3. corrosion-resistant magnesium alloy according to claim 1 or 2, it is characterised in that the Corrosion resistant magnesium alloy material Raw material include：Magnesium ingot, zinc ingot metal, tin slab, quartz, magnesium manganese intermediate alloy ingot, magnesium yttrium intermediate alloy ingot, magnesium neodymium intermediate alloy Ingot, metallic nickel and graphite.
4. the preparation method of the corrosion-resistant magnesium alloy described in a kind of claim 3, it is characterised in that comprise the following steps：
(1) raw materials such as magnesium ingot, zinc ingot metal, tin slab, quartz are added into melting furnace melting, magnesium alloy liquation is made；
(2) the magnesium alloy liquation after fusing is risen to 700 DEG C -750 DEG C, is incubated 20-30min, adds magnesium yttrium intermediate alloy ingot, Magnesium neodymium intermediate alloy, ingot magnesium manganese intermediate alloy ingot, 700 DEG C -750 DEG C of keeping temperature after fusing, 12-15min is incubated, is then cooled To 650 DEG C -680 DEG C, 1-2h is incubated, obtains refining magnesium alloys liquation；
(3) the magnesium alloy liquation of refining is maintained the temperature between 650 DEG C -680 DEG C and poured into a mould, magnesium alloy base is made；
(4) magnesium alloy base is annealed, being passed through argon gas during annealing is protected, and magnesium alloy is made after the completion of annealing；
(5) magnesium alloy of acquisition is plated into Ni-C film layers as target using metallic nickel and graphite by the use of magnetron sputtering on its surface.
CN201711252053.2A 2017-12-01 2017-12-01 A kind of corrosion-resistant magnesium alloy and preparation method thereof Pending CN107739946A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109881060A (en) * 2019-03-26 2019-06-14 华南理工大学 A kind of corrosion-resistant magnesium alloy and preparation method thereof containing Si
CN115449680A (en) * 2022-08-17 2022-12-09 深圳市飞航精工科技有限公司 Corrosion-resistant magnesium alloy material and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109881060A (en) * 2019-03-26 2019-06-14 华南理工大学 A kind of corrosion-resistant magnesium alloy and preparation method thereof containing Si
CN109881060B (en) * 2019-03-26 2021-05-14 华南理工大学 Si-containing corrosion-resistant magnesium alloy and preparation method thereof
CN115449680A (en) * 2022-08-17 2022-12-09 深圳市飞航精工科技有限公司 Corrosion-resistant magnesium alloy material and preparation method thereof

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Application publication date: 20180227