CN114737075A - 轻质耐磨导电NbCr2/Mg复合材料的制备方法 - Google Patents
轻质耐磨导电NbCr2/Mg复合材料的制备方法 Download PDFInfo
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- 239000002131 composite material Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title description 5
- 239000000463 material Substances 0.000 claims abstract description 25
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000002360 preparation method Methods 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000007873 sieving Methods 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 7
- 239000011777 magnesium Substances 0.000 claims description 33
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 14
- 238000005245 sintering Methods 0.000 claims description 14
- 238000005054 agglomeration Methods 0.000 claims description 7
- 230000002776 aggregation Effects 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 238000000465 moulding Methods 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
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- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
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- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
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- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
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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
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
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- 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
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0047—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents
- C22C32/0052—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with carbides, nitrides, borides or silicides as the main non-metallic constituents only carbides
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- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/04—Making metallic powder or suspensions thereof using physical processes starting from solid material, e.g. by crushing, grinding or milling
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Abstract
一种轻质耐磨导电NbCr2/Mg复合材料的制备方法，属于复合材料领域，包括：A、对Mg、NbCr2粉过筛，筛网网孔为30目，然后干燥12h；B、将处理过的Mg、NbCr2粉、碳化硅粉末按比例搅拌混合均匀并在30MPa压力下成型，在400℃进行高温烧结，保温3h。本发明有效提高Mg材料的耐磨性和导电性，具有很好的力学性能和耐磨性。
Description
技术领域
本发明涉及轻质耐磨导电NbCr2/Mg，属于复合材料制备领域。
背景技术
镁是航空工业的重要材料，Mg是富有韧性的金属，塑性好，具有良好的延展性，容易加工。镁合金具有比强度、比刚度高，导热导电性能好,很好的电磁屏蔽、阻尼性、减振性、切削加工性以及加工成本低和易于回收等优点，因而广泛用于航空航天、导弹、汽车、光学仪器、建筑等行业。但是，镁的强度、耐磨性较差。因此将镁用作结构材料需要进行强化。而NbCr2具有强度高、良好的耐蚀性、耐磨性好等优点。
发明内容
本发明的目的是提供一种耐磨、导电、均质NbCr2/Mg复合材料的制备方法，所述的方法制备的复合材料具有优秀的耐磨性和导电性。
为达到上述目的，本发明采用的技术方案：一种轻质耐磨导电NbCr2/Mg复合材料，由以下重量份原料组成：
NbCr2 20份；镁粉80份；碳化硅粉末0~8份；
所述的NbCr2粒度300目。
优选的，所述镁粉粒度300目。优选的，所述碳化硅微粉末粒度800目。
本发明公开了上述的轻质耐磨导电NbCr2/Mg的制备工艺，其步骤包括：
A、对NbCr2过筛，筛网网孔为30目，然后干燥12h，用托盘密封散装以防团聚；
B、将处理过的NbCr2、镁粉、碳化硅粉末按不同质量比例加入球磨机中，充分搅拌以使所有材料混合均匀；
C、将混合后的材料放入冷压模具模腔中，在室温、30MPa压力下成型，保压20min，脱模；
D、脱模后的材料放入真空烧结模具，在400℃进行高温烧结，保温3h，随炉冷却，得到成品。
本发明在镁粉中添加NbCr2、碳化硅，可以有效提高Mg材料的耐磨性和导电性，镁粉塑性好，容易加工，有良好的力学性能，导热导电性好，有良好的耐蚀性，NbCr2具有强度高、良好的耐蚀性、耐磨性好等优点，碳化硅作为陶瓷材料，具有很好的力学性能和耐磨性，有助于NbCr2、碳化硅与Mg基体的紧密结合，提高复合材料的耐磨性。
具体实施方式
实施例1：本轻质耐磨导电NbCr2/Mg复合材料的制备方法，其步骤包括：
A、对Mg、NbCr2粉过筛，筛网网孔为40目，然后干燥12h，用托盘密封散装以防团聚；
B、将20份NBCR2、80份镁粉按不同比例加入球磨机中，充分搅拌以使所有材料混合均匀；
C、将混合后的材料放入冷压模具模腔中，在室温、30MPa压力下成型，保压20min，脱模；
D、脱模后的材料放入真空烧结模具，在400℃进行高温烧结，保温3h，随炉冷却，得到成品轻质耐磨导电NbCr2/Mg复合材料。
轻质耐磨导电NbCr2/Mg复合材料在载荷100N，转速1000r/min，干摩擦2h，对磨球是GCr15钢的摩擦磨损试验条件下，轻质耐磨导电NbCr2/Mg复合材料的摩擦系数是0.16；磨损体积是1.62mm3；电阻率是65μΩm。
实施例2：本轻质耐磨导电NbCr2/Mg复合材料的制备方法，其步骤包括：
A、对NbCr2过筛，筛网网孔为40目，然后干燥12h，用托盘密封散装以防团聚；
B、将20份NbCr2、80份镁粉、5份碳化硅粉末按不同比例加入球磨机中，充分搅拌以使所有材料混合均匀；
C、将混合后的材料放入冷压模具模腔中，在室温、30MPa压力下成型，保压20min，脱模；
D、脱模后的材料放入真空烧结模具，在400℃进行高温烧结，保温3h，随炉冷却，得到成品。
轻质耐磨导电NbCr2/Mg复合材料在载荷100N，转速1000r/min，干摩擦2h，对磨球是GCr15钢的摩擦磨损试验条件下，轻质耐磨导电NbCr2/Mg复合材料的摩擦系数是0 .22；磨损体积是0.82mm3；电阻率是42μΩm。
实施例3：本轻质耐磨导电NbCr2/Mg复合材料的制备方法，其步骤包括：
A、对NbCr2过筛，筛网网孔为40目，然后干燥12h，用托盘密封散装以防团聚;
B、将20份NbCr2、80份镁粉、8份碳化硅粉末按不同比例加入球磨机中，充分搅拌以使所有材料混合均匀；
C、将混合后的材料放入冷压模具模腔中，在室温、30MPa压力下成型，保压20min，脱模；
D、脱模后的材料放入真空烧结模具，在400℃进行高温烧结，保温3h，随炉冷却，得到成品。
对制得的轻质耐磨导电NbCr2/Mg复合材料进行性能测试，测试结果表明，该复合材料还具有优异的延展性。
轻质耐磨导电NbCr2/Mg复合材料在载荷100N，转速1000r/min，干摩擦2h，对磨球是GCr15钢的摩擦磨损试验条件下，轻质耐磨导电NbCr2/Mg复合材料的摩擦系数是0 .17；磨损体积是0.37mm3；电阻率是25μΩm。
Claims (3)
1.一种轻质耐磨导电NbCr2/Mg复合材料的制备方法，其特征是包括下述步骤：
A、对Mg、NbCr2粉过筛，筛网网孔为300目，然后干燥12h，用托盘密封散装以防团聚；
B、将20份NbCr2、80份镁粉按比例加入球磨机中，充分搅拌以使所有材料混合均匀；
C、将混合后的材料放入冷压模具模腔中，在室温、30MPa压力下成型，保压20min，脱模；
D、脱模后的材料放入真空烧结模具，在400℃进行高温烧结，保温3h，随炉冷却，得到成品轻质耐磨导电NbCr2/Mg复合材料。
2.一种轻质耐磨导电NbCr2/Mg复合材料的制备方法，其特征是包括下述步骤：
A、对Mg、NbCr2粉过筛，筛网网孔为300目，然后干燥12h，用托盘密封散装以防团聚；
B、将20份NbCr2、80份镁粉、5份碳化硅粉末按比例加入球磨机中，充分搅拌以使所有材料混合均匀；
C、将混合后的材料放入冷压模具模腔中，在室温、30MPa压力下成型，保压20min，脱模；
D、脱模后的材料放入真空烧结模具，在400℃进行高温烧结，保温3h，随炉冷却，得到成品轻质耐磨导电NbCr2/Mg复合材料。
3.一种轻质耐磨导电NbCr2/Mg复合材料的制备方法，其特征是包括下述步骤：
A、对Mg、NbCr2粉过筛，筛网网孔为300目，然后干燥12h，用托盘密封散装以防团聚；
B、将20份NbCr2、80份镁粉、8份碳化硅粉末按比例加入球磨机中，充分搅拌以使所有材料混合均匀；
C、将混合后的材料放入冷压模具模腔中，在室温、30MPa压力下成型，保压20min，脱模；
D、脱模后的材料放入真空烧结模具，在400℃进行高温烧结，保温3h，随炉冷却，得到成品轻质耐磨导电NbCr2/Mg复合材料。
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60103078A (ja) * | 1983-11-09 | 1985-06-07 | 日本タングステン株式会社 | 導電性ジルコニア基焼結材料及びその製造方法 |
| CN1924072A (zh) * | 2006-09-22 | 2007-03-07 | 中国科学院长春应用化学研究所 | 一种高强镁基复合材料及其制备方法 |
| CN105821274A (zh) * | 2016-05-21 | 2016-08-03 | 聂小武 | 一种制备NbCr2金属间化合物的方法 |
| CN106244833A (zh) * | 2016-08-31 | 2016-12-21 | 攀钢集团江油长城特殊钢有限公司 | 一种含镁合金的制备方法 |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60103078A (ja) * | 1983-11-09 | 1985-06-07 | 日本タングステン株式会社 | 導電性ジルコニア基焼結材料及びその製造方法 |
| CN1924072A (zh) * | 2006-09-22 | 2007-03-07 | 中国科学院长春应用化学研究所 | 一种高强镁基复合材料及其制备方法 |
| CN105821274A (zh) * | 2016-05-21 | 2016-08-03 | 聂小武 | 一种制备NbCr2金属间化合物的方法 |
| CN106244833A (zh) * | 2016-08-31 | 2016-12-21 | 攀钢集团江油长城特殊钢有限公司 | 一种含镁合金的制备方法 |
Non-Patent Citations (2)
| Title |
|---|
| NIE, XW: "The absence of a stable hexagonal Laves phase modification (NbCr2) in the Nb-Cr system", SCRIPTA MATERIALIA, vol. 64, no. 10, pages 990 - 993 * |
| 聂小武、鲁世强等: "机械合金化一热压制备Nb/NbCr2复合材料的组织与性能", vol. 17, no. 11, pages 1761 - 1766 * |
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