WO2016179734A1 - Magnesium-aluminum-silicon carbide intermediate alloy material and preparation method therefor - Google Patents
Magnesium-aluminum-silicon carbide intermediate alloy material and preparation method therefor Download PDFInfo
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- WO2016179734A1 WO2016179734A1 PCT/CN2015/000865 CN2015000865W WO2016179734A1 WO 2016179734 A1 WO2016179734 A1 WO 2016179734A1 CN 2015000865 W CN2015000865 W CN 2015000865W WO 2016179734 A1 WO2016179734 A1 WO 2016179734A1
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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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/06—Alloys based on aluminium with magnesium as the next major constituent
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- the invention relates to a magnesium-aluminum-silicon carbide intermediate alloy material and a preparation method thereof, in particular to a magnesium-aluminum-silicon carbide intermediate alloy material for effectively improving the strength of a magnesium alloy material and a preparation method thereof.
- Magnesium alloys are alloys based on magnesium and added to other elements. Its characteristics are: low density, good specific performance, good shock absorption performance, good electrical and thermal conductivity, good process performance, and the weight of magnesium is lighter than aluminum, the specific gravity is only 1.8, so it is in the aircraft, spacecraft and rocket missile manufacturing industry. The lightest metal construction material used. However, magnesium alloys have low strength, only 200 to 300 MPa, and are mainly used to manufacture low-load parts. Therefore, only by further improving the strength properties of magnesium alloys, the advantages of magnesium alloy materials can be utilized in a wider range of industrial fields.
- the object of the present invention is to provide a magnesium-aluminum-silicon carbide intermediate alloy material and a preparation method thereof for improving the strength of a magnesium alloy material by improving the composition of the intermediate alloy and the mass ratio between the components.
- a magnesium-aluminum-silicon carbide intermediate alloy material consisting of the following components by weight: 41-44 wt% of magnesium, 1-3 wt% of silicon carbide, and 55-58 wt% of aluminum.
- the magnesium-aluminum-silicon carbide master alloy material of the present invention is composed of the following components by weight: 41% by weight of magnesium, 1% by weight of silicon carbide, and 58% by weight of aluminum.
- the magnesium-aluminum-silicon carbide master alloy material of the present invention is composed of the following components by weight: 44 wt% of magnesium, 1 wt% of silicon carbide, and 55 wt% of aluminum.
- the magnesium-aluminum-silicon carbide master alloy material of the present invention is composed of the following components by weight: 42 wt% of magnesium, 3 wt% of silicon carbide, and 55 wt% of aluminum.
- magnesium is a magnesium powder of 100-200 mesh.
- the silicon carbide is silicon carbide particles having a particle diameter of more than 50 ⁇ m and less than 150 ⁇ m.
- the aluminum is an aluminum powder of 100-200 mesh.
- the invention provides a preparation method of a magnesium-aluminum-silicon carbide intermediate alloy material, which has the following steps:
- the magnesium-aluminum-silicon carbide intermediate alloy material provided by the invention comprises a magnesium alloy strengthening element, wherein the silicon element can form a strengthening phase Mg 2 Si with the magnesium element, increase the grain boundary strength, and further integrate with other alloying elements in the alloy.
- the formation of a stable silicide improves the creep properties of the alloy, thereby increasing the strength of the magnesium alloy; the aluminum element can also enhance the strength of the magnesium alloy by solid solution strengthening.
- the magnesium-aluminum-silicon carbide intermediate alloy material provided by the invention is suitable for adding to various fields.
- the magnesium alloy material can effectively improve the strength of the final magnesium alloy material; it is increased from the original strength of 200 to 300 MPa to 300 to 380 MPa.
- magnesium-aluminum-silicon carbide intermediate alloy material and the preparation method thereof provided by the present invention are further described below in conjunction with the examples, but are not intended to limit the scope of application of the present invention.
- the weight percentage of each component of the magnesium-aluminum-silicon carbide master alloy material of Example 1 of the present invention is: 41% by weight of magnesium, 1% by weight of silicon carbide, and 58% by weight of aluminum.
- a method for preparing a magnesium-aluminum-silicon carbide intermediate alloy material according to Embodiment 1 of the present invention comprises the following steps:
- the weight percentage of each component of the magnesium-aluminum-silicon carbide master alloy material of Example 2 of the present invention is: 44 wt% of magnesium, 1 wt% of silicon carbide, and 55 wt% of aluminum.
- a method for preparing a magnesium-aluminum-silicon carbide intermediate alloy material according to Embodiment 2 of the present invention comprises the following steps:
- the weight percentage of each component of the magnesium-aluminum-silicon carbide master alloy material of Example 3 of the present invention is: 42 wt% of magnesium, 3 wt% of silicon carbide, and 55 wt% of aluminum.
- the method for preparing a magnesium-aluminum-silicon carbide intermediate alloy material according to Embodiment 3 of the present invention comprises the following steps:
- the weight percentage of each component of the magnesium-aluminum-silicon carbide master alloy material of Example 4 of the present invention was: 43 wt% of magnesium, 1 wt% of silicon carbide, and 56 wt% of aluminum.
- a method for preparing a magnesium-aluminum-silicon carbide intermediate alloy material according to Embodiment 4 of the present invention comprises the following steps:
- the weight percentage of each component of the magnesium-aluminum-silicon carbide master alloy material of Example 5 of the present invention was: 41 wt% of magnesium, 2.5 wt% of silicon carbide, and 56.5 wt% of aluminum.
- a method for preparing a magnesium-aluminum-silicon carbide intermediate alloy material according to Embodiment 5 of the present invention comprises the following steps:
- the magnesium-aluminum-silicon carbide intermediate alloy material prepared in the above embodiment is separately added to a conventional magnesium alloy to obtain a novel high-strength magnesium alloy, and the tensile strength thereof is shown in the following table:
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Abstract
A magnesium-aluminum-silicon carbide intermediate alloy material and a preparation method therefor. The magnesium-aluminum-silicon carbide intermediate alloy material is composed of the following components in percentage by weight: 41 to 44wt% of magnesium, 1 to 3wt% of silicon carbide and 55 to 58wt% of aluminum. The preparation method for the magnesium-aluminum-silicon carbide intermediate alloy material comprises the steps of stirring, drying, vacuum melting and the like. The intermediate alloy material is applied to being added to magnesium alloy materials in various fields, and can effectively improve the final strength of a magnesium alloy material from original 200 to 300MPa to 300 to 380MPa.
Description
本发明涉及一种镁-铝-碳化硅中间合金材料及其制备方法，特别是涉及一种用于有效提高镁合金材料强度的镁-铝-碳化硅中间合金材料及其制备方法。The invention relates to a magnesium-aluminum-silicon carbide intermediate alloy material and a preparation method thereof, in particular to a magnesium-aluminum-silicon carbide intermediate alloy material for effectively improving the strength of a magnesium alloy material and a preparation method thereof.
镁合金是以镁为基加入其他元素组成的合金。其特点是：密度低、比性能好、减震性能好、导电导热性能良好、工艺性能良好，而且镁的重量比铝轻，比重仅为1.8，因此是航空器、航天器和火箭导弹制造工业中使用的最轻金属结构材料。但是镁合金强度较低，只有200～300MPa，主要用于制造低承力的零件。因此，只有进一步改进镁合金的强度性能，才能更大范围的在不同工业领域利用镁合金材料的优势。Magnesium alloys are alloys based on magnesium and added to other elements. Its characteristics are: low density, good specific performance, good shock absorption performance, good electrical and thermal conductivity, good process performance, and the weight of magnesium is lighter than aluminum, the specific gravity is only 1.8, so it is in the aircraft, spacecraft and rocket missile manufacturing industry. The lightest metal construction material used. However, magnesium alloys have low strength, only 200 to 300 MPa, and are mainly used to manufacture low-load parts. Therefore, only by further improving the strength properties of magnesium alloys, the advantages of magnesium alloy materials can be utilized in a wider range of industrial fields.
综上，目前需要一种成本较低，适用于添加到各领域的镁合金材料中，以进一步提高镁合金材料强度的新型中间合金材料。In summary, there is a need for a new intermediate alloy material that is less costly and suitable for use in magnesium alloy materials added to various fields to further enhance the strength of magnesium alloy materials.
发明内容Summary of the invention
本发明的目的在于，通过改进中间合金成分及各成分间质量配比，提供一种有效提高镁合金材料强度的镁-铝-碳化硅中间合金材料及其制备方法。The object of the present invention is to provide a magnesium-aluminum-silicon carbide intermediate alloy material and a preparation method thereof for improving the strength of a magnesium alloy material by improving the composition of the intermediate alloy and the mass ratio between the components.
为实现上述发明目的，本发明所提供的技术方案是：In order to achieve the above object, the technical solution provided by the present invention is:
一种镁-铝-碳化硅中间合金材料，由如下重量百分比的组分组成：镁41-44wt％，碳化硅1-3wt％，铝55-58wt％。A magnesium-aluminum-silicon carbide intermediate alloy material consisting of the following components by weight: 41-44 wt% of magnesium, 1-3 wt% of silicon carbide, and 55-58 wt% of aluminum.
优选地，本发明的镁-铝-碳化硅中间合金材料，由如下重量百分比的组分组成：镁41wt％，碳化硅1wt％，铝58wt％。
Preferably, the magnesium-aluminum-silicon carbide master alloy material of the present invention is composed of the following components by weight: 41% by weight of magnesium, 1% by weight of silicon carbide, and 58% by weight of aluminum.
优选地，本发明的镁-铝-碳化硅中间合金材料，由如下重量百分比的组分组成：镁44wt％，碳化硅1wt％，铝55wt％。Preferably, the magnesium-aluminum-silicon carbide master alloy material of the present invention is composed of the following components by weight: 44 wt% of magnesium, 1 wt% of silicon carbide, and 55 wt% of aluminum.
优选地，本发明的镁-铝-碳化硅中间合金材料，由如下重量百分比的组分组成：镁42wt％，碳化硅3wt％，铝55wt％。Preferably, the magnesium-aluminum-silicon carbide master alloy material of the present invention is composed of the following components by weight: 42 wt% of magnesium, 3 wt% of silicon carbide, and 55 wt% of aluminum.
进一步地，镁为100-200目的镁粉。Further, magnesium is a magnesium powder of 100-200 mesh.
进一步地，碳化硅为粒径大于50μm，小于150μm的碳化硅颗粒。Further, the silicon carbide is silicon carbide particles having a particle diameter of more than 50 μm and less than 150 μm.
进一步地，铝为100-200目的铝粉。Further, the aluminum is an aluminum powder of 100-200 mesh.
本发明提供一种镁-铝-碳化硅中间合金材料的制备方法，具有以下步骤：The invention provides a preparation method of a magnesium-aluminum-silicon carbide intermediate alloy material, which has the following steps:
1)在常规条件下按照重量百分比准备镁粉、铝粉及碳化硅颗粒；1) preparing magnesium powder, aluminum powder and silicon carbide particles in percentage by weight under normal conditions;
2)在18-22℃条件下将重量比例适中的三种粉末混合搅拌，搅拌时添加适量的无水乙醇，搅拌时间为3-6分钟；2) mixing and stirring three kinds of powders with moderate weight ratio under the condition of 18-22 ° C, adding an appropriate amount of absolute ethanol while stirring, and stirring time is 3-6 minutes;
3)将搅拌均匀的粉末置入1公斤容量的模具中，压制成小块并烘干；压制时温度在22-26℃，压力为45-50KN；3) Put the evenly stirred powder into a mold of 1 kg capacity, press into small pieces and dry; the temperature at the time of pressing is 22-26 ° C, the pressure is 45-50KN;
4)将制作完成的小块放置在真空加热炉中，并充入99.999％纯度惰性气体氩，使加热炉处于真空状态下，压力应保持在5.0×10-3Pa以下；将加热炉升温至400-500℃，保温4-5小时；4) Place the finished piece in a vacuum heating furnace and fill it with 99.999% pure inert gas argon, so that the heating furnace is under vacuum, the pressure should be kept below 5.0×10 -3 Pa; 400-500 ° C, heat preservation 4-5 hours;
5)将加热完成之后的合金锭随加热炉自然冷却，并包装入库。5) The alloy ingot after the heating is completed is naturally cooled with the heating furnace and packaged into the warehouse.
采用上述技术方案，本发明的有益效果有：With the above technical solutions, the beneficial effects of the present invention are as follows:
1.本发明提供的镁-铝-碳化硅中间合金材料包含镁合金强化元素，其中硅元素能够和镁元素形成强化相Mg2Si，提高晶界强度，还能进一步与合金中的其他合金元素形成稳定的硅化物，改善合金的蠕变性能，从而提高镁合金的强度；铝元素也能够通过固溶强化起到提高镁合金强度的作用。将这些元素以通过中间合金的形式添加到传统镁合金中，解决了烧损、高熔点合金不易熔入等问题，在节约成本的同时提高了镁合金材料的强度。1. The magnesium-aluminum-silicon carbide intermediate alloy material provided by the invention comprises a magnesium alloy strengthening element, wherein the silicon element can form a strengthening phase Mg 2 Si with the magnesium element, increase the grain boundary strength, and further integrate with other alloying elements in the alloy. The formation of a stable silicide improves the creep properties of the alloy, thereby increasing the strength of the magnesium alloy; the aluminum element can also enhance the strength of the magnesium alloy by solid solution strengthening. These elements are added to the conventional magnesium alloy in the form of an intermediate alloy, which solves the problems of burning, high melting point alloys, and the like, thereby improving the strength of the magnesium alloy material while saving cost.
2.本发明提供的镁-铝-碳化硅中间合金材料，适于添加至各种领域用
的镁合金材料，能有效的提高最终镁合金材料的强度；使其由原来的强度200～300MPa提高至300～380MPa。2. The magnesium-aluminum-silicon carbide intermediate alloy material provided by the invention is suitable for adding to various fields.
The magnesium alloy material can effectively improve the strength of the final magnesium alloy material; it is increased from the original strength of 200 to 300 MPa to 300 to 380 MPa.
以下结合实施例对本发明提供的镁-铝-碳化硅中间合金材料及其制备方法作进一步说明，但并非限制本发明的应用范围。The magnesium-aluminum-silicon carbide intermediate alloy material and the preparation method thereof provided by the present invention are further described below in conjunction with the examples, but are not intended to limit the scope of application of the present invention.
实施例1Example 1
本发明实施例1的镁-铝-碳化硅中间合金材料的各组分的重量百分比为：镁41wt％，碳化硅1wt％，铝58wt％。The weight percentage of each component of the magnesium-aluminum-silicon carbide master alloy material of Example 1 of the present invention is: 41% by weight of magnesium, 1% by weight of silicon carbide, and 58% by weight of aluminum.
本发明实施例1的镁-铝-碳化硅中间合金材料的制备方法，包括下述步骤：A method for preparing a magnesium-aluminum-silicon carbide intermediate alloy material according to Embodiment 1 of the present invention comprises the following steps:
1)在常规条件下按照重量百分比准备镁粉、铝粉及碳化硅颗粒；1) preparing magnesium powder, aluminum powder and silicon carbide particles in percentage by weight under normal conditions;
2)在20℃条件下将重量比例适中的三种粉末混合搅拌，搅拌时添加适量的无水乙醇，搅拌时间为5分钟；2) mixing and stirring three kinds of powders with moderate weight ratio under the condition of 20 ° C, adding an appropriate amount of absolute ethanol while stirring, and stirring time is 5 minutes;
3)将搅拌均匀的粉末置入1公斤容量的模具中，压制成小块并烘干；压制时温度在25℃，压力为50KN；3) Put the evenly stirred powder into a mold of 1 kg capacity, press it into small pieces and dry; the temperature at pressing is 25 ° C, the pressure is 50KN;
4)将制作完成的小块放置在真空加热炉中，并充入99.999％纯度惰性气体氩，使加热炉处于真空状态下，压力应保持在5.0×10-3Pa以下；将加热炉升温至480℃，保温4.5小时；4) Place the finished piece in a vacuum heating furnace and fill it with 99.999% pure inert gas argon, so that the heating furnace is under vacuum, the pressure should be kept below 5.0×10 -3 Pa; 480 ° C, insulation for 4.5 hours;
5)将加热完成之后的合金锭随加热炉自然冷却，并包装入库。5) The alloy ingot after the heating is completed is naturally cooled with the heating furnace and packaged into the warehouse.
实施例2Example 2
本发明实施例2的镁-铝-碳化硅中间合金材料的各组分的重量百分比为：镁44wt％，碳化硅1wt％，铝55wt％。The weight percentage of each component of the magnesium-aluminum-silicon carbide master alloy material of Example 2 of the present invention is: 44 wt% of magnesium, 1 wt% of silicon carbide, and 55 wt% of aluminum.
本发明实施例2的镁-铝-碳化硅中间合金材料的制备方法，包括下述步骤：A method for preparing a magnesium-aluminum-silicon carbide intermediate alloy material according to Embodiment 2 of the present invention comprises the following steps:
1)在常规条件下按照重量百分比准备镁粉、铝粉及碳化硅颗粒；1) preparing magnesium powder, aluminum powder and silicon carbide particles in percentage by weight under normal conditions;
2)在20℃条件下将重量比例适中的三种粉末混合搅拌，搅拌时添加
适量的无水乙醇，搅拌时间为5分钟；2) Mix and mix three powders with moderate weight ratio at 20 °C, add when stirring
Appropriate amount of absolute ethanol, stirring time is 5 minutes;
3)将搅拌均匀的粉末置入1公斤容量的模具中，压制成小块并烘干；压制时温度在25℃，压力为48KN；3) Put the uniformly stirred powder into a mold of 1 kg capacity, press it into small pieces and dry it; the temperature at the time of pressing is 25 ° C, and the pressure is 48 KN;
4)将制作完成的小块放置在真空加热炉中，并充入99.999％纯度惰性气体氩，使加热炉处于真空状态下，压力应保持在5.0×10-3Pa以下；将加热炉升温至430℃，保温4小时；4) Place the finished piece in a vacuum heating furnace and fill it with 99.999% pure inert gas argon, so that the heating furnace is under vacuum, the pressure should be kept below 5.0×10 -3 Pa; 430 ° C, heat preservation for 4 hours;
5)将加热完成之后的合金锭随加热炉自然冷却，并包装入库。5) The alloy ingot after the heating is completed is naturally cooled with the heating furnace and packaged into the warehouse.
实施例3Example 3
本发明实施例3的镁-铝-碳化硅中间合金材料的各组分的重量百分比为：镁42wt％，碳化硅3wt％，铝55wt％。The weight percentage of each component of the magnesium-aluminum-silicon carbide master alloy material of Example 3 of the present invention is: 42 wt% of magnesium, 3 wt% of silicon carbide, and 55 wt% of aluminum.
本发明实施例3的镁-铝-碳化硅中间合金材料的制备方法，包括下述步骤：The method for preparing a magnesium-aluminum-silicon carbide intermediate alloy material according to Embodiment 3 of the present invention comprises the following steps:
1)在常规条件下按照重量百分比准备镁粉、铝粉及碳化硅颗粒；1) preparing magnesium powder, aluminum powder and silicon carbide particles in percentage by weight under normal conditions;
2)在20℃条件下将重量比例适中的三种粉末混合搅拌，搅拌时添加适量的无水乙醇，搅拌时间为5分钟；2) mixing and stirring three kinds of powders with moderate weight ratio under the condition of 20 ° C, adding an appropriate amount of absolute ethanol while stirring, and stirring time is 5 minutes;
3)将搅拌均匀的粉末置入1公斤容量的模具中，压制成小块并烘干；压制时温度在25℃，压力为45KN；3) Put the uniformly stirred powder into a mold of 1 kg capacity, press it into small pieces and dry it; the temperature at the time of pressing is 25 ° C, and the pressure is 45 KN;
4)将制作完成的小块放置在真空加热炉中，并充入99.999％纯度惰性气体氩，使加热炉处于真空状态下，压力应保持在5.0×10-3Pa以下；将加热炉升温至480℃，保温5小时；4) Place the finished piece in a vacuum heating furnace and fill it with 99.999% pure inert gas argon, so that the heating furnace is under vacuum, the pressure should be kept below 5.0×10 -3 Pa; 480 ° C, holding for 5 hours;
5)将加热完成之后的合金锭随加热炉自然冷却，并包装入库。5) The alloy ingot after the heating is completed is naturally cooled with the heating furnace and packaged into the warehouse.
实施例4Example 4
本发明实施例4的镁-铝-碳化硅中间合金材料的各组分的重量百分比为：镁43wt％，碳化硅1wt％，铝56wt％。The weight percentage of each component of the magnesium-aluminum-silicon carbide master alloy material of Example 4 of the present invention was: 43 wt% of magnesium, 1 wt% of silicon carbide, and 56 wt% of aluminum.
本发明实施例4的镁-铝-碳化硅中间合金材料的制备方法，包括下述步骤：
A method for preparing a magnesium-aluminum-silicon carbide intermediate alloy material according to Embodiment 4 of the present invention comprises the following steps:
1)在常规条件下按照重量百分比准备镁粉、铝粉及碳化硅颗粒；1) preparing magnesium powder, aluminum powder and silicon carbide particles in percentage by weight under normal conditions;
2)在20℃条件下将重量比例适中的三种粉末混合搅拌，搅拌时添加适量的无水乙醇，搅拌时间为5分钟；2) mixing and stirring three kinds of powders with moderate weight ratio under the condition of 20 ° C, adding an appropriate amount of absolute ethanol while stirring, and stirring time is 5 minutes;
3)将搅拌均匀的粉末置入1公斤容量的模具中，压制成小块并烘干；压制时温度在25℃，压力为46KN；3) Put the uniformly stirred powder into a mold of 1 kg capacity, press it into small pieces and dry; the temperature at pressing is 25 ° C, the pressure is 46KN;
4)将制作完成的小块放置在真空加热炉中，并充入99.999％纯度惰性气体氩，使加热炉处于真空状态下，压力应保持在5.0×10-3Pa以下；将加热炉升温至410℃，保温4.5小时；4) Place the finished piece in a vacuum heating furnace and fill it with 99.999% pure inert gas argon, so that the heating furnace is under vacuum, the pressure should be kept below 5.0×10 -3 Pa; 410 ° C, holding for 4.5 hours;
5)将加热完成之后的合金锭随加热炉自然冷却，并包装入库。5) The alloy ingot after the heating is completed is naturally cooled with the heating furnace and packaged into the warehouse.
实施例5Example 5
本发明实施例5的镁-铝-碳化硅中间合金材料的各组分的重量百分比为：镁41wt％，碳化硅2.5wt％，铝56.5wt％。The weight percentage of each component of the magnesium-aluminum-silicon carbide master alloy material of Example 5 of the present invention was: 41 wt% of magnesium, 2.5 wt% of silicon carbide, and 56.5 wt% of aluminum.
本发明实施例5的镁-铝-碳化硅中间合金材料的制备方法，包括下述步骤：A method for preparing a magnesium-aluminum-silicon carbide intermediate alloy material according to Embodiment 5 of the present invention comprises the following steps:
1)在常规条件下按照重量百分比准备镁粉、铝粉及碳化硅颗粒；1) preparing magnesium powder, aluminum powder and silicon carbide particles in percentage by weight under normal conditions;
2)在20℃条件下将重量比例适中的三种粉末混合搅拌，搅拌时添加适量的无水乙醇，搅拌时间为5分钟；2) mixing and stirring three kinds of powders with moderate weight ratio under the condition of 20 ° C, adding an appropriate amount of absolute ethanol while stirring, and stirring time is 5 minutes;
3)将搅拌均匀的粉末置入1公斤容量的模具中，压制成小块并烘干；压制时温度在25℃，压力为50KN；3) Put the evenly stirred powder into a mold of 1 kg capacity, press it into small pieces and dry; the temperature at pressing is 25 ° C, the pressure is 50KN;
4)将制作完成的小块放置在真空加热炉中，并充入99.999％纯度惰性气体氩，使加热炉处于真空状态下，压力应保持在5.0×10-3Pa以下；将加热炉升温至400℃，保温5小时；4) Place the finished piece in a vacuum heating furnace and fill it with 99.999% pure inert gas argon, so that the heating furnace is under vacuum, the pressure should be kept below 5.0×10 -3 Pa; 400 ° C, heat preservation for 5 hours;
5)将加热完成之后的合金锭随加热炉自然冷却，并包装入库。5) The alloy ingot after the heating is completed is naturally cooled with the heating furnace and packaged into the warehouse.
将上述实施例制备的镁-铝-碳化硅中间合金材料分别添加到传统镁合金中，得到新型高强度镁合金，其抗拉强度图下表所示：The magnesium-aluminum-silicon carbide intermediate alloy material prepared in the above embodiment is separately added to a conventional magnesium alloy to obtain a novel high-strength magnesium alloy, and the tensile strength thereof is shown in the following table:
表1
Table 1
| 组别Group | 抗拉强度(Mpa)Tensile strength (Mpa) |
| 传统镁合金(AZ91D)Traditional magnesium alloy (AZ91D) | 250250 |
| 添加 实施例1Adding Example 1 | 380380 |
| 添加 实施例2Adding Example 2 | 307307 |
| 添加 实施例3Adding Example 3 | 326326 |
| 添加 实施例4Adding Example 4 | 355355 |
| 添加 实施例5Adding Example 5 | 372372 |
根据上述表1的数据可以看出，添加镁-铝-碳化硅中间合金材料后，镁合金的抗拉强度得到了显著的提高。According to the data in Table 1 above, it can be seen that the tensile strength of the magnesium alloy is remarkably improved after the addition of the magnesium-aluminum-silicon carbide intermediate alloy material.
以上所述实施例仅表达了本发明的实施方式，其描述较为具体和详细，但并不能因此而理解为对本发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。
The above-mentioned embodiments are merely illustrative of the embodiments of the present invention, and the description thereof is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (8)
- 一种镁-铝-碳化硅中间合金材料，其特征在于，由如下重量百分比的组分组成：镁41-44wt％，碳化硅1-3wt％，铝55-58wt％。A magnesium-aluminum-silicon carbide intermediate alloy material characterized by being composed of the following components by weight: 41-44 wt% of magnesium, 1-3 wt% of silicon carbide, and 55-58 wt% of aluminum.
- 根据权利要求1所述的镁-铝-碳化硅中间合金材料，其特征在于，由如下重量百分比的组分组成：镁41wt％，碳化硅1wt％，铝58wt％。The magnesium-aluminum-silicon carbide master alloy material according to claim 1, which is composed of the following components by weight: 41% by weight of magnesium, 1% by weight of silicon carbide, and 58% by weight of aluminum.
- 根据权利要求1所述的镁-铝-碳化硅中间合金材料，其特征在于，由如下重量百分比的组分组成：镁44wt％，碳化硅1wt％，铝55wt％。The magnesium-aluminum-silicon carbide master alloy material according to claim 1, which is composed of the following components by weight: 44% by weight of magnesium, 1% by weight of silicon carbide, and 55% by weight of aluminum.
- 根据权利要求1所述的镁-铝-碳化硅中间合金材料，其特征在于，由如下重量百分比的组分组成：镁42wt％，碳化硅3wt％，铝55wt％。The magnesium-aluminum-silicon carbide master alloy material according to claim 1, which is composed of the following components by weight: 42 wt% of magnesium, 3 wt% of silicon carbide, and 55 wt% of aluminum.
- 根据权利要求1-4中任一项的镁-铝-碳化硅中间合金材料，其特征在于，所述镁为100-200目的镁粉。A magnesium-aluminum-silicon carbide master alloy material according to any one of claims 1 to 4, characterized in that the magnesium is a magnesium powder of 100-200 mesh.
- 根据权利要求1-4中任一项的镁-铝-碳化硅中间合金材料，其特征在于，所述碳化硅为粒径大于50μm，小于150μm的碳化硅颗粒。The magnesium-aluminum-silicon carbide master alloy material according to any one of claims 1 to 4, wherein the silicon carbide is silicon carbide particles having a particle diameter of more than 50 μm and less than 150 μm.
- 根据权利要求1-4中任一项的镁-铝-碳化硅中间合金材料，其特征在于，所述铝为100-200目的铝粉。A magnesium-aluminum-silicon carbide master alloy material according to any one of claims 1 to 4, characterized in that the aluminum is an aluminum powder of 100-200 mesh.
- 根据权利要求1-7中任一项所述镁-铝-碳化硅中间合金材料的制备方法，其特征在于，具有以下步骤：The method for preparing a magnesium-aluminum-silicon carbide master alloy material according to any one of claims 1 to 7, which has the following steps:1)在常规条件下按照重量百分比准备镁粉、铝粉及碳化硅颗粒；1) preparing magnesium powder, aluminum powder and silicon carbide particles in percentage by weight under normal conditions;2)在18-22℃条件下将重量比例适中的三种粉末混合搅拌，搅拌时添加适量的无水乙醇，搅拌时间为3-6分钟；2) mixing and stirring three kinds of powders with moderate weight ratio under the condition of 18-22 ° C, adding an appropriate amount of absolute ethanol while stirring, and stirring time is 3-6 minutes;3)将搅拌均匀的粉末置入1公斤容量的模具中，压制成小块并烘干；压制时温度在22-26℃，压力为45-50KN；3) Put the evenly stirred powder into a mold of 1 kg capacity, press into small pieces and dry; the temperature at the time of pressing is 22-26 ° C, the pressure is 45-50KN;4)将制作完成的小块放置在真空加热炉中，并充入99.999％纯度惰性气体氩，使加热炉处于真空状态下，压力应保持在5.0×10-3Pa以下；将加热炉升温至400-500℃，保温4-5小时；4) Place the finished piece in a vacuum heating furnace and fill it with 99.999% pure inert gas argon, so that the heating furnace is under vacuum, the pressure should be kept below 5.0×10 -3 Pa; 400-500 ° C, heat preservation 4-5 hours;5)将加热完成之后的合金锭随加热炉自然冷却，并包装入库。 5) The alloy ingot after the heating is completed is naturally cooled with the heating furnace and packaged into the warehouse.
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