CN104046857B - A kind of wide-band high damping aluminium alloy and preparation method thereof - Google Patents
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- 238000013016 damping Methods 0.000 title claims abstract description 27
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 9
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 5
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 5
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 5
- 229910052706 scandium Inorganic materials 0.000 claims abstract description 5
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 5
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 38
- 239000000956 alloy Substances 0.000 claims description 38
- 230000006698 induction Effects 0.000 claims description 32
- 238000005266 casting Methods 0.000 claims description 19
- 239000011777 magnesium Substances 0.000 claims description 13
- 229910052782 aluminium Inorganic materials 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000010791 quenching Methods 0.000 claims description 12
- 230000000171 quenching effect Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 6
- 229910052749 magnesium Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229910052779 Neodymium Inorganic materials 0.000 claims description 4
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 4
- 229910052746 lanthanum Inorganic materials 0.000 claims description 4
- -1 wherein Y:16% Inorganic materials 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims 3
- 238000009413 insulation Methods 0.000 claims 2
- 239000000155 melt Substances 0.000 claims 2
- 229910001122 Mischmetal Inorganic materials 0.000 claims 1
- 238000013019 agitation Methods 0.000 claims 1
- 238000000137 annealing Methods 0.000 description 8
- 238000005496 tempering Methods 0.000 description 4
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 150000002910 rare earth metals Chemical class 0.000 description 3
- 238000003756 stirring Methods 0.000 description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Abstract
Description
技术领域 technical field
本发明属于合金领域，特别是涉及一种宽频段高阻尼铝合金及其制备方法。 The invention belongs to the field of alloys, in particular to a wide-band high-damping aluminum alloy and a preparation method thereof.
背景技术 Background technique
通过特定制备方法得到的铝合金（铝镁合金）具有良好的强度、在宽频段和宽温度区间内有较好阻尼性、热处理后阻尼性能降低很小或升高的铝合金有着很好的市场需求。例如。无人侦察机支撑平台框架及舰船上减振部件，这些部件需要材料具有轻量化、较好的阻尼性、抗腐蚀、强度高和易于热处理等性能，亟待开发出一种阻尼性能良好，并且抗拉强度、屈服强度以及伸长率较好的合金。 The aluminum alloy (aluminum-magnesium alloy) obtained by a specific preparation method has good strength, good damping performance in a wide frequency band and a wide temperature range, and aluminum alloys with little or no increase in damping performance after heat treatment have a good market. need. For example. Unmanned reconnaissance aircraft support platform frame and damping components on ships. These components require materials with light weight, good damping performance, corrosion resistance, high strength and easy heat treatment. It is urgent to develop a good damping performance, and Alloy with good tensile strength, yield strength and elongation.
发明内容 Contents of the invention
本发明的目的在于提出一种宽频段高阻尼铝合金； The purpose of the present invention is to propose a wide-band high-damping aluminum alloy;
本发明的目的之二在于提出一种宽频段高阻尼铝合金的制备方法； The second object of the present invention is to propose a method for preparing a wide-band high-damping aluminum alloy;
一种宽频段高阻尼铝合金，所述铝合金以重量百分比含量由以下组分构成：Mg：13.2~15.1%，Ca：0.26~0.58%，Sr：0.11~0.28%，Ba：0.021~0.108%，Ti：1.01~1.59%，Zr：0.52~0.88%，Sc：0.28~0.76%，V：1.02~1.58%，Nb：0.24~0.81%，Cr：0.11~0.46%，Mo：0.23~0.66%，RE：1.12~1.49%，Fe：小于0.02%，Ni：小于0.01%，Cu：小于0.02%，Si：小于0.005%，余量为Al和不可避免的杂质。 A wide-band high-damping aluminum alloy, the aluminum alloy is composed of the following components in weight percentage: Mg: 13.2-15.1%, Ca: 0.26-0.58%, Sr: 0.11-0.28%, Ba: 0.021-0.108% , Ti: 1.01~1.59%, Zr: 0.52~0.88%, Sc: 0.28~0.76%, V: 1.02~1.58%, Nb: 0.24~0.81%, Cr: 0.11~0.46%, Mo: 0.23~0.66%, RE: 1.12~1.49%, Fe: less than 0.02%, Ni: less than 0.01%, Cu: less than 0.02%, Si: less than 0.005%, and the balance is Al and unavoidable impurities.
作为优选，所述RE为混合稀土，其中Y：11~18%，Pr：6~9%，Nd：4~8%，La：21~26%，余量为Ce和不可避免的杂质。 Preferably, the RE is a mixed rare earth, wherein Y: 11-18%, Pr: 6-9%, Nd: 4-8%, La: 21-26%, and the balance is Ce and unavoidable impurities.
作为优选，所述宽频段为20~110Hz。 Preferably, the wide frequency band is 20-110 Hz.
一种前述宽频段高阻尼铝合金的制备方法，包括如下步骤： A method for preparing the aforementioned wide-band high-damping aluminum alloy, comprising the steps of:
（1）按照前述铝合金组分准备原料，其中Al和Mg均以纯度99.99%的Al锭和Mg锭形式准备，其它组分均以中间合金形式准备； (1) Prepare raw materials according to the aforementioned aluminum alloy components, in which Al and Mg are prepared in the form of Al ingots and Mg ingots with a purity of 99.99%, and other components are prepared in the form of master alloys;
（2）先将22~26%的铝锭加入到电阻炉中作为底料，电阻炉升温到350~410℃预热，保温5~15min，然后迅速将电阻炉升温到750~780℃，待铝锭全部融化后，加入镁锭和其它中间合金，再加入剩余的铝锭，待炉料全部融化之后，电磁搅拌25~41s，将炉温降到710~735℃，保温25~61min； (2) First add 22~26% aluminum ingots into the resistance furnace as the bottom material, heat the resistance furnace to 350~410°C for preheating, keep it warm for 5~15 minutes, then quickly raise the temperature of the resistance furnace to 750~780°C, wait for After the aluminum ingots are completely melted, add magnesium ingots and other intermediate alloys, and then add the remaining aluminum ingots. After the furnace materials are completely melted, stir electromagnetically for 25~41s, lower the furnace temperature to 710~735°C, and keep warm for 25~61min;
（3）采用快速真空吸铸的方法得到铸态的合金铸棒，所述快速真空吸铸吸铸时间为2~5s，合金铸棒长度为1~1.25m； (3) Obtain the as-cast alloy rod by adopting the method of rapid vacuum suction casting, the suction casting time of the rapid vacuum suction casting is 2~5s, and the length of the alloy casting rod is 1~1.25m;
（4）将步骤（3）得到的合金铸棒放入感应线圈中，感应加热3~6min，感应线圈的功率为1.3~1.6千瓦，然后放入10~15℃的淬火液中进行淬火处理； (4) Put the cast alloy rod obtained in step (3) into the induction coil, and heat it for 3-6 minutes by induction. The power of the induction coil is 1.3-1.6 kilowatts, and then put it into the quenching liquid at 10-15°C for quenching treatment;
（5）将淬火之后的合金铸棒在感应线圈中感应加热到160~210℃，保温15~20min后，空冷至室温； (5) Inductively heat the quenched alloy cast rod to 160~210°C in the induction coil, keep it warm for 15~20min, and air cool to room temperature;
（6）将回火之后的合金铸棒进行退火，所述退火为在感应线圈中以0.8~1.1千瓦加热1.1~2.0min，然后从感应线圈中取出后自然冷却到室温； (6) Annealing the alloy cast rod after tempering, the annealing is heating in the induction coil with 0.8-1.1 kilowatts for 1.1-2.0 min, and then taking it out from the induction coil and cooling it naturally to room temperature;
（7）将步骤（6）处理之后的合金铸棒再次放入感应线圈中，感应加热2~5min，感应线圈的功率为1.4~1.7千瓦，然后放入80~85℃的热水中淬火； (7) Put the cast alloy rod after the treatment in step (6) into the induction coil again, inductively heat for 2~5 minutes, the power of the induction coil is 1.4~1.7 kW, and then put it into hot water at 80~85°C for quenching;
（8）将淬火之后的合金铸棒在感应线圈中加热到160~210℃，保温16~28min后，空冷至室温； (8) Heat the alloy cast rod after quenching to 160~210℃ in the induction coil, keep it warm for 16~28min, and air cool to room temperature;
（9）将步骤（8）回火之后的合金铸棒再次进行退火，所述退火为在感应线圈中以0.7~1.0千瓦加热1~2.5min，然后从感应线圈中取出后自然冷却到室温；得到宽频段高阻尼铝合金。 (9) Annealing the alloy cast rod after tempering in step (8) again, the annealing is heating in the induction coil with 0.7-1.0 kilowatts for 1-2.5 min, then taking it out from the induction coil and cooling it naturally to room temperature; A wide-band high-damping aluminum alloy is obtained.
本发明的效果在于：Effect of the present invention is:
1，通过特定组分和特定热处理方式的搭配，使得该高阻尼铝合金具有良好的阻尼系数； 1. Through the combination of specific components and specific heat treatment methods, the high damping aluminum alloy has a good damping coefficient;
2，通过热处理的具体参数的搭配，使得铝合金的强度、韧性等性能得到大幅提高； 2. Through the matching of specific parameters of heat treatment, the strength, toughness and other properties of aluminum alloy are greatly improved;
3，通过对合金各组分的合理控制，使得阻尼合金的密度较低，成本相对较低。 3. Through reasonable control of each component of the alloy, the density of the damping alloy is low and the cost is relatively low.
具体实施方式 detailed description
实施例Example 11
一种宽频段高阻尼铝合金，其特征在于，所述铝合金以重量百分比含量由以下组分构成：Mg：14.1%，Ca：0.38%，Sr：0.18%，Ba：0.098%，Ti：1.39%，Zr：0.68%，Sc：0.56%，V：1.38%，Nb：0.61%，Cr：0.36%，Mo：0.46%，RE：1.39%，Fe：小于0.01%，Ni：小于0.01%，Cu：小于0.01%，Si：小于0.005%，余量为Al和不可避免的杂质；所述RE为混合稀土，其中Y：16%，Pr：8%，Nd：6%，La：24%，余量为Ce和不可避免的杂质。 A wide-band high-damping aluminum alloy, characterized in that the aluminum alloy is composed of the following components in weight percentage: Mg: 14.1%, Ca: 0.38%, Sr: 0.18%, Ba: 0.098%, Ti: 1.39 %, Zr: 0.68%, Sc: 0.56%, V: 1.38%, Nb: 0.61%, Cr: 0.36%, Mo: 0.46%, RE: 1.39%, Fe: less than 0.01%, Ni: less than 0.01%, Cu : less than 0.01%, Si: less than 0.005%, the balance is Al and unavoidable impurities; the RE is mixed rare earth, wherein Y: 16%, Pr: 8%, Nd: 6%, La: 24%, and the rest The amount is Ce and unavoidable impurities.
所得合金在20Hz下阻尼系数为0.0622,40Hz下为0.0487,60Hz下为0.0401,80Hz下为0.0322,100Hz下为0.0312，其中阻尼系数的单位为tanδ；室温下抗拉强度为269MPa，屈服强度为218MPa，伸长率为7.1%。 The damping coefficient of the obtained alloy is 0.0622 at 20Hz, 0.0487 at 40Hz, 0.0401 at 60Hz, 0.0322 at 80Hz, and 0.0312 at 100Hz, where the unit of damping coefficient is tanδ; the tensile strength at room temperature is 269MPa, and the yield strength is 218MPa , The elongation is 7.1%.
实施例Example 22 ：:
一种宽频段高阻尼铝合金的制备方法，其特征在于，包括如下步骤： A method for preparing a wide-band high-damping aluminum alloy, characterized in that it comprises the following steps:
（1）按照铝合金组分准备原料，其中Al和Mg均以纯度99.99%的Al锭和Mg锭形式准备，其它组分均以中间合金形式准备； (1) Raw materials are prepared according to the aluminum alloy components, in which Al and Mg are prepared in the form of Al ingots and Mg ingots with a purity of 99.99%, and other components are prepared in the form of master alloys;
（2）先将24%的铝锭加入到电阻炉中作为底料，电阻炉升温到392℃预热，保温11min，然后迅速将电阻炉升温到762℃，待铝锭全部融化后，加入镁锭和其它中间合金，再加入剩余的铝锭，待炉料全部融化之后，电磁搅拌32s，将炉温降到723℃，保温42min； (2) First add 24% aluminum ingots into the resistance furnace as the bottom material, heat the resistance furnace to 392°C for preheating, keep it warm for 11 minutes, then quickly raise the temperature of the resistance furnace to 762°C, after all the aluminum ingots are melted, add magnesium Ingots and other intermediate alloys, and then add the remaining aluminum ingots. After the furnace materials are completely melted, stir electromagnetically for 32s, lower the furnace temperature to 723°C, and keep warm for 42min;
（3）采用快速真空吸铸的方法得到铸态的合金铸棒，所述快速真空吸铸吸铸时间为4s，合金铸棒长度为1.13m； (3) Obtain the as-cast alloy rod by adopting the method of rapid vacuum suction casting, the suction casting time of the rapid vacuum suction casting is 4s, and the length of the alloy casting rod is 1.13m;
其中合金铸棒中所述铝合金以重量百分比含量由以下组分构成：Mg：13.9%，Ca：0.36%，Sr：0.19%，Ba：0.088%，Ti：1.12%，Zr：0.69%，Sc：0.49%，V：1.21%，Nb：0.61%，Cr：0.32%，Mo：0.51%，RE：1.32%，Fe：0.008%，Ni：0.003%，Cu：0.0009%，Si：0.0009%，余量为Al和不可避免的杂质；所述RE为混合稀土，其中Y：14%，Pr：7.2%，Nd：5%，La：25%，余量为Ce和不可避免的杂质； Wherein the aluminum alloy in the alloy cast rod is composed of the following components in weight percentage: Mg: 13.9%, Ca: 0.36%, Sr: 0.19%, Ba: 0.088%, Ti: 1.12%, Zr: 0.69%, Sc : 0.49%, V: 1.21%, Nb: 0.61%, Cr: 0.32%, Mo: 0.51%, RE: 1.32%, Fe: 0.008%, Ni: 0.003%, Cu: 0.0009%, Si: 0.0009%, Yu The amount is Al and unavoidable impurities; the RE is mixed rare earth, wherein Y: 14%, Pr: 7.2%, Nd: 5%, La: 25%, and the balance is Ce and unavoidable impurities;
（4）将步骤（3）得到的合金铸棒放入感应线圈中，感应加热4min，感应线圈的功率为1.4千瓦，然后放入13℃的淬火液中进行淬火处理； (4) Put the cast alloy rod obtained in step (3) into the induction coil, and heat it for 4 minutes by induction. The power of the induction coil is 1.4 kilowatts, and then put it into the quenching liquid at 13°C for quenching treatment;
（5）将淬火之后的合金铸棒在感应线圈中感应加热到186℃，保温17min后，空冷至室温； (5) Inductively heat the quenched alloy cast rod to 186°C in the induction coil, keep it warm for 17 minutes, and air cool to room temperature;
（6）将回火之后的合金铸棒进行退火，所述退火为在感应线圈中以0.92千瓦加热1.6min，然后从感应线圈中取出后自然冷却到室温； (6) Annealing the alloy cast rod after tempering, the annealing is heating at 0.92 kilowatts in the induction coil for 1.6 min, then taking it out from the induction coil and cooling it naturally to room temperature;
（7）将步骤（6）处理之后的合金铸棒再次放入感应线圈中，感应加热4min，感应线圈的功率为1.67千瓦，然后放入83℃的热水中淬火； (7) Put the cast alloy rod after the treatment in step (6) into the induction coil again, heat it for 4 minutes, and the power of the induction coil is 1.67 kilowatts, and then put it into 83°C hot water for quenching;
（8）将淬火之后的合金铸棒在感应线圈中加热到178℃，保温21min后，空冷至室温； (8) Heat the alloy cast rod after quenching to 178°C in the induction coil, keep it warm for 21 minutes, and air cool to room temperature;
（9）将步骤（8）回火之后的合金铸棒再次进行退火，所述退火为在感应线圈中以0.92千瓦加热2.1min，然后从感应线圈中取出后自然冷却到室温；得到宽频段高阻尼铝合金。 (9) Annealing the alloy cast rod after tempering in step (8) again, the annealing is heating at 0.92 kilowatts in the induction coil for 2.1 min, then taking it out from the induction coil and cooling it naturally to room temperature; Damping aluminum alloy.
所得合金在20Hz下阻尼系数为0.0582,40Hz下为0.0462,60Hz下为0.0400,80Hz下为0.0342,100Hz下为0.0308，其中阻尼系数的单位为tanδ；室温下抗拉强度为278MPa，屈服强度为216MPa，伸长率为7.2%。 The damping coefficient of the obtained alloy is 0.0582 at 20Hz, 0.0462 at 40Hz, 0.0400 at 60Hz, 0.0342 at 80Hz, and 0.0308 at 100Hz, where the unit of damping coefficient is tanδ; the tensile strength at room temperature is 278MPa, and the yield strength is 216MPa , The elongation is 7.2%.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0277564A (en) * | 1988-09-13 | 1990-03-16 | Furukawa Alum Co Ltd | Aluminum-alloy high-dumping material and its production |
| JPH03223436A (en) * | 1990-01-29 | 1991-10-02 | Furukawa Alum Co Ltd | Aluminum alloy high damping material and its manufacture |
| CN101280378A (en) * | 2008-02-27 | 2008-10-08 | 中国科学院长春应用化学研究所 | A 20-100Hz frequency band high-damping aluminum-magnesium alloy and its preparation method |
| CN102268575A (en) * | 2011-07-20 | 2011-12-07 | 安徽欣意电缆有限公司 | Aluminum alloy material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0277564A (en) * | 1988-09-13 | 1990-03-16 | Furukawa Alum Co Ltd | Aluminum-alloy high-dumping material and its production |
| JPH03223436A (en) * | 1990-01-29 | 1991-10-02 | Furukawa Alum Co Ltd | Aluminum alloy high damping material and its manufacture |
| CN101280378A (en) * | 2008-02-27 | 2008-10-08 | 中国科学院长春应用化学研究所 | A 20-100Hz frequency band high-damping aluminum-magnesium alloy and its preparation method |
| CN102268575A (en) * | 2011-07-20 | 2011-12-07 | 安徽欣意电缆有限公司 | Aluminum alloy material and preparation method thereof |
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