WO2022041636A1 - 一种轧制(FeCoNiCrRn/Al)-2024Al复合板材及其制备方法 - Google Patents
一种轧制(FeCoNiCrRn/Al)-2024Al复合板材及其制备方法 Download PDFInfo
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- 239000002131 composite material Substances 0.000 title claims abstract description 106
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
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- 229910045601 alloy Inorganic materials 0.000 claims abstract description 58
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 44
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 24
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- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 229910052786 argon Inorganic materials 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 12
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- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 238000001291 vacuum drying Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 1
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- 238000005098 hot rolling Methods 0.000 abstract description 3
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- 230000006798 recombination Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 4
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- 230000009286 beneficial effect Effects 0.000 description 3
- 229910001250 2024 aluminium alloy Inorganic materials 0.000 description 2
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- 229910002545 FeCoNi Inorganic materials 0.000 description 1
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- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000009736 wetting Methods 0.000 description 1
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Abstract
Description
Claims (10)
- 一种轧制(FeCoNiCrR n/Al)-2024Al复合板材的制备方法,其特征在于:以纯铝为基体,添加具有高强韧性的FeCoNiCrR n中熵合金颗粒作增强相,制成FeCoNiCrR n/Al铝基复合材料,其中,R为Y,0<n≤0.8;FeCoNiCrR n中熵合金增强相的添加量占材料总质量的10~30%,以2024Al铝合金板材和FeCoNiCrR n/Al铝基复合材料为原材料,采用热轧复合的方式制备金属复合板材。
- 根据权利要求1所述的轧制(FeCoNiCrR n/Al)-2024Al复合板材的制备方法,其特征在于,所述的FeCoNiCrR n中熵合金颗粒,其中R还可以为B或C,0<n≤0.8。
- 根据权利要求1或2所述的轧制(FeCoNiCrR n/Al)-2024Al复合板材的制备方法,其特征在于,包括以下步骤:(1)以高纯的金属粉末Fe、Co、Ni、Cr和R粉末为原料,按照设计的配比称重混粉;将配比好的混合粉末放入球磨罐中球磨,采用机械合金化的方法制备中熵合金粉末,球磨时抽真空,并通入氩气进行保护;(2)将制得的中熵合金粉末进行真空干燥处理,将所述高熵合金粉末颗粒和基体铝粉末颗粒混合,采用球磨机低能球磨,得到混合粉末,球磨时抽真空,通氩气进行保护;(3)将所述复合粉末干燥后利用超声波仪超声分散均匀,然后利用冷等静压工艺成型,制成块状固体复合材料;(4)将所述块状固体复合材料放入坩埚中,采用微波烧结技术进行烧结固化,得到中熵合金颗粒增强铝基复合材料FeCoNiCrR n/Al;(6)将所述中熵合金颗粒增强铝基复合材料FeCoNiCrR n/Al切割成板块,将其置于铝合金板块中间,利用铆钉对叠层板材进行固定后进行热轧制。
- 如权利要求3所述的轧制(FeCoNiCrR n/Al)-2024Al复合板材的制备方法,其特征在于:所述的步骤(1)中,各种元素的粉末纯度≥99.95wt%,粉末粒径≤40μm。
- 如权利要求3所述的轧制(FeCoNiCrR n/Al)-2024Al复合板材的制备方法,其特征在于:步骤(1)中球磨过程实验参数为:球料质量比为8:1~15:1,球磨分为干磨和湿磨,先进行干磨,后进行湿磨,湿磨用无水乙醇作为过程控制剂,质量分数为10%~20%;其中干磨转速100~300r/min,时间20~40h。湿磨转速200~400r/min,时间10~20h;球磨后的粉末粒径范围为0.1~5μm,球磨结束后将粉体真空干燥48~72h后取出;所述的步骤(2)中,球磨参数为:球料质量比为5:1~10:1,湿磨10~30h,过程控制剂为无水乙醇,质量分数15~25%,转速120~180r/min。
- 如权利要求3所述的轧制(FeCoNiCrR n/Al)-2024Al复合板材的制备方法,其特征在于:所述的步骤(3)中,压制成型过程的实验参数为:保压时间2~5min,成型压强为200~300Mpa。
- 如权利要求3所述的轧制(FeCoNiCrR n/Al)-2024Al复合板材的制备方法,其特征在于:所述的步骤(4)中,微波烧结过程的实验参数为:烧结温度为400℃~600℃,保温30~50min,升温速率20℃/min~60℃/min,真空度<20Pa。
- 如权利要求7所述的轧制(FeCoNiCrR n/Al)-2024Al复合板材的制备方法,其特征在于:所述步骤(5)中,将微波烧结制成的FeCoNiCrR n/Al复合材料切割成直径3~5mm、厚度2~3mm的备用板材;将铝合金切割成长宽90mm×70mm、厚度1~2mm的备用板材,利用微波马弗炉对铝合金板材进行真空预先热处理再进行铆接,热处理参数为:预热温度为400℃~600℃、保温时间为1~3h。
- 如权利要求8所述的轧制(FeCoNiCrR n/Al)-2024Al复合板材的制备方法,其特征在于:利用角磨机、砂纸以及丙酮对复合材料与铝合金板材进行表面清洁处理,处理完依次按照铝合金、FeCoNiCrR n/Al铝基复合材料、铝合金的顺序进行叠层并铆接结合;轧制参数为:将铆接好的复合板材置于温度为300℃~500℃的加热炉中保温5~10min,随后立即进行轧制复合;轧制压下量为20%~60%,轧制速度控制在20~40r/min,轧辊温度100℃~150℃。
- 如权利要求1-9中任一项所述的制备方法制备的轧制(FeCoNiCrR n/Al)-2024Al复合板材。
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