CN111996477B - 一种涂层超导带材用高强度立方织构金属基带的制备方法 - Google Patents

一种涂层超导带材用高强度立方织构金属基带的制备方法 Download PDF

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CN111996477B
CN111996477B CN202010642953.3A CN202010642953A CN111996477B CN 111996477 B CN111996477 B CN 111996477B CN 202010642953 A CN202010642953 A CN 202010642953A CN 111996477 B CN111996477 B CN 111996477B
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CN111996477A (zh
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刘志勇
刘天啸
刘宇瑄
杨海刚
宋桂林
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Very Magnetic Technology Shanghai Co ltd
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Henan Normal University
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/10Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0231Warm rolling
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0236Cold rolling
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0273Final recrystallisation annealing
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/08Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon

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  • Superconductors And Manufacturing Methods Therefor (AREA)

Abstract

本发明公开了一种涂层超导带材用的高强度立方织构金属基带的制备方法,基带的成分为:0.5wt%~1.5wt% Co、42wt%~55wt% Cu、2wt%~3wt% V,余量为Ni,Co和V分别以中间合金的形式加入熔化炉,通过连续铸造技术获得合金坯锭,经过30%~50%变形量的温轧,后续通过冷轧、中间退火及最终的再结晶退火,最终获得高强度立方织构金属基带,该金属基带在液氮温区无铁磁性,并具有强立方织构。

Description

一种涂层超导带材用高强度立方织构金属基带的制备方法
技术领域
本发明涉及一种涂层超导带材用高强度立方织构金属基带的制备方法,属于第二代涂层超导带材用的织构金属基底材料的制备技术领域。
背景技术
自高温超导被发现以来,在液氮温区运行的超导设备具有良好的发展前景。YBCO超导带材被制备出来后引起了业界的广泛关注,制备方法主要是在韧性的金属基底上生长缓冲层和YBCO超导层,一种比较常用的方法是在具有强立方织构的基带上外延生长缓冲层和超导层,实用化的涂层超导带材要求具有基带具有高强度、强立方织构及液氮温区无铁磁性。目前,对镍钨合金基带研究的比较成熟,并且已经工业化生产,但是高强度、无铁磁性镍钨合金基带的制备难度较大,生产成本较高。获得良好的力学性能,同时可以兼顾铁磁性和立方织构,是目前工业化生产金属基带遇到的瓶颈。因此,开发新的合金体系来制备高性能的金属基带具有重要的科学价值和工业意义。
发明内容
本发明的目的是提供了一种工艺简单且成本低廉的涂层超导带材用高强度立方织构金属基带的制备方法。
本发明为实现上述目的采用如下技术方案,一种涂层超导带材用高强度立方织构金属基带的制备方法,其特征在于具体步骤为:
步骤S1:合金坯锭的制备
采用连续铸轧技术获得Ni-Cu-Co-V合金坯锭,成分为:0.5wt%~1.5wt% Co、42wt%~55wt% Cu、2wt%~3wt% V,余量为Ni,合金坯锭厚度为8mm,其中Co元素以Cu-5at.% Co中间合金的形式加入,V元素以Ni-5at.% V中间合金的形式加入,初始浇铸温度为1280~1300℃,铸轧速度为0.5~1m/min;
步骤S2:合金坯锭的温轧
将步骤S1得到的合金坯锭升温至700~900℃保温30min后进行温轧,总变形量为30%~50%,温轧过程仅用三道次来完成,每道次轧制速度为10~60m/min,最终获得温轧轧板;
步骤S3:温轧轧板的冷轧及中间退火
将步骤S2得到的温轧轧板冷轧至2mm厚,再在500℃保温12~15min,然后继续冷轧至80~100μm厚,最终获得冷轧带材;
步骤S4:冷轧带材的再结晶退火
将步骤S3得到的冷轧带材进行再结晶退火,再结晶退火工艺为:以到温入炉的方式,在1000~1020℃保温20~35min,最终获得涂层超导带材用的高强度立方织构金属基带。
本发明与现有技术相比具有以下有益效果:本发明工艺简单且成本低廉,通过合金成分及相应的制备工艺设计最终制得适合工业化生产的第二代涂层超导带材用的高性能织构金属基带。
附图说明
图1是实施例1制得金属基带表面的取向差分布图;
图2是实施例2制得金属基带表面的{001}面极图。
具体实施方式
下面结合附图对本发明做进一步的详细说明。本发明采用美国QUATEK INC铁电工作仪测定了所制备的聚合物基柔性复合薄膜材料的储能性能,以上性能参数皆在室温下测得。
实施例1
采用连续铸轧技术获得Ni-Cu-Co-V合金坯锭,成分为:0.5wt% Co、42wt% Cu、2wt%V,余量为Ni,合金坯锭厚度为8mm,其中,Co元素以Cu-5at.% Co中间合金的形式加入,V元素以Ni-5at.% V中间合金的形式加入,初始浇铸温度为1280℃,铸轧速度为0.5m/min。将上述合金坯锭升温至700℃保温30min后进行温轧,总变形量为30%,温轧过程仅用三道次来完成。将上述温轧轧板冷轧至2mm厚,后续在500℃保温15min,然后再继续冷轧至80μm厚。将上述冷轧带材进行再结晶退火,再结晶退火工艺为:以到温入炉的方式,在1000℃保温20min,最终获得涂层超导带材用的高强度立方织构金属基带。该金属基带具有强立方织构,表面的取向差分布如图1所示,并且屈服强度达到240MPa,在液氮温区无铁磁性。
实施例2
采用连续铸轧技术获得Ni-Cu-Co-V合金坯锭,成分为:1.5wt% Co、42wt% Cu、3wt%V,余量为Ni,合金坯锭厚度为8mm,其中,Co元素以Cu-5at.% Co中间合金的形式加入,V元素以Ni-5at.% V中间合金的形式加入,初始浇铸温度为1300℃,铸轧速度为1m/min。将上述合金坯锭升温至900℃保温30min后进行温轧,总变形量为50%,温轧过程仅用三道次来完成。将上述温轧轧板冷轧至2mm厚,后续在500℃保温15min,然后再继续冷轧至100μm厚。将上述冷轧带材进行再结晶退火,再结晶退火工艺为:以到温入炉的方式,在1020℃保温20min,最终获得涂层超导带材用的高强度立方织构金属基带。该金属基带具有强立方织构,表面的{001}面极图如图2所示,并且屈服强度达到256MPa,在液氮温区无铁磁性。
以上显示和描述了本发明的基本原理,主要特征和优点,在不脱离本发明精神和范围的前提下,本发明还有各种变化和改进,这些变化和改进都落入要求保护的本发明的范围。

Claims (1)

1.一种涂层超导带材用高强度立方织构金属基带的制备方法,其特征在于具体步骤为:
步骤S1:合金坯锭的制备
采用连续铸轧技术获得Ni-Cu-Co-V合金坯锭,成分为:0.5wt%~1.5wt% Co、42wt%~55wt% Cu、2wt%~3wt% V,余量为Ni,合金坯锭厚度为8mm,其中Co元素以Cu-5at.% Co中间合金的形式加入,V元素以Ni-5at.% V中间合金的形式加入,初始浇铸温度为1280~1300℃,铸轧速度为0.5~1m/min;
步骤S2:合金坯锭的温轧
将步骤S1得到的合金坯锭升温至700~900℃保温30min后进行温轧,总变形量为30%~50%,温轧过程仅用三道次来完成,每道次轧制速度为10~60m/min,最终获得温轧轧板;
步骤S3:温轧轧板的冷轧及中间退火
将步骤S2得到的温轧轧板冷轧至2mm厚,再在500℃保温12~15min,然后继续冷轧至80~100μm厚,最终获得冷轧带材;
步骤S4:冷轧带材的再结晶退火
将步骤S3得到的冷轧带材进行再结晶退火,再结晶退火工艺为:以到温入炉的方式,在1000~1020℃保温20~35min,最终获得涂层超导带材用的高强度立方织构金属基带。
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