CN110951995B - 一种高强度镍基合金基带的制备方法 - Google Patents
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000000956 alloy Substances 0.000 title claims abstract description 32
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 31
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 24
- 238000005098 hot rolling Methods 0.000 claims abstract description 23
- 238000009749 continuous casting Methods 0.000 claims abstract description 19
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 11
- 239000001257 hydrogen Substances 0.000 claims abstract description 11
- 238000000137 annealing Methods 0.000 claims abstract description 9
- 238000005097 cold rolling Methods 0.000 claims abstract description 9
- 238000001953 recrystallisation Methods 0.000 claims abstract description 9
- 238000005266 casting Methods 0.000 claims abstract description 8
- 239000000498 cooling water Substances 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 239000002344 surface layer Substances 0.000 claims description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 229910002804 graphite Inorganic materials 0.000 claims description 5
- 239000010439 graphite Substances 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 5
- 238000003801 milling Methods 0.000 claims description 5
- 238000010791 quenching Methods 0.000 claims description 5
- 230000000171 quenching effect Effects 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000002887 superconductor Substances 0.000 description 3
- 229910001080 W alloy Inorganic materials 0.000 description 2
- 230000005307 ferromagnetism Effects 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- MOWMLACGTDMJRV-UHFFFAOYSA-N nickel tungsten Chemical compound [Ni].[W] MOWMLACGTDMJRV-UHFFFAOYSA-N 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052721 tungsten Inorganic materials 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
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/10—Changing 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/221—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by cold-rolling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B2001/225—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by hot-rolling
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Abstract
本发明公开了一种高强度镍基合金基带的制备方法，首先采用垂直连铸法通过控制铸造温度、拉坯速度及冷却水温度等参数获得镍基合金铸坯，然后将铸坯在高温下通过9道次热轧至10mm厚，随后进行冷轧变形，将冷轧带材在氩氢混合气氛下进行再结晶退火获得最终的高强度、强立方织构的镍基合金基带。
Description
技术领域
本发明涉及一种高强度镍基合金基带的制备方法，属于高温涂层超导带材用的织构金属基底制备领域。
背景技术
第二代高温超导体具有高的载流能力和低的交流损耗，目前制备第二代高温超导的方法主要是由涂层技术获得，在强立方织构的金属基底上外延生长过渡层及超导层，在第二代高温超导研究领域，获得高性能的韧性金属基带是制备高载流能力的涂层超导带材的关键。目前，Ni-5at.%W（Ni5W）合金材料容易获得强立方织构，但由于较低的机械强度和在液氮温区具有较高的铁磁性，仍然不能满足涂层超导带材生产制备及广泛应用的要求，更高W含量的Ni-W合金具有较高的强度，且在液氮温区无铁磁性，但难以形成强立方织构，通常需要进行温轧变形或冷轧期间多次退火，增加了生产成本，目前还未见关于更多关于低成本的适合工业化生产的高性能镍钨合金基带的报道，如何简化生产工艺获得高强度的强立方织构合金基带是目前第二代涂层超导带材研发的热点也是难点。
发明内容
本发明的目的是提供一种高强度镍基合金基带的制备方法，通过合金成分设计和特定的制备工艺，开发适合第二代涂层超导带材用的高性能金属基底带材。
本发明所提供的一种高强度镍基合金基带的制备方法，其特征在于，包括以下步骤：
（1）合金成分设计及坯锭的制备；
将纯度为99.99%的Ni板、纯度为99.99%的W块和纯度为99.99%的石墨作为原材料，按照W的原子百分含量为5%，C的含量为0.05%~0.1%配比，通过垂直连铸的方法获得连铸坯，厚度为150mm~200mm，其中，浇铸温度为1520℃~1550℃，拉坯速度为100mm/min，冷却水的温度控制在28℃~32℃；
（2）坯锭的热轧；
将连铸坯升温至1280℃~1300℃保温1小时后进行热轧，加热及保温过程中无保护气氛，热轧共9道次，最终热轧至10mm厚，终轧温度控制在1000℃以上，热轧后淬火处理，获得合金坯锭；
（3）合金坯锭的冷轧；对步骤（2）的热轧板表层磨或铣掉0.1mm~0.5mm厚，然后进行冷轧变形，获得厚度为40~70μm的合金带材，每道次厚度压下量控制在13%~18%；
（4）合金坯锭的再结晶退火；合金坯锭在氩氢混合气氛下氢气体积占1%~2%进行再结晶退火，具体工艺：1200℃保温20min~25min，升温速率：2~10℃/min，得到高强度镍基合金基带。
本发明的核心技术是：采用垂直连铸获得连铸坯，有利于工业化生产，合金中添加微量的碳元素可以强化合金基带，并且在热轧过程中表层发生脱碳，在最后的再结晶过程中容易在表面形成强立方织构，心部保持高强度，合金基带整体的力学性能较高。
附图说明
图1是实施例1中所得带材表面的{111}面极图。
图2是实施例2中所得带材表面的{111}面极图。
具体实施方式
实施例1
以纯度为99.99%的Ni板、纯度为99.99%的W块和纯度为99.99%的石墨为原材料，按照W的原子百分含量为5%，C的含量为0.05%配比，通过垂直连铸的方法获得连铸坯，厚度为150mm，其中，浇铸温度为1520℃，拉坯速度为100mm/min，冷却水的温度控制在28℃，将连铸坯升温至1280℃保温1小时后进行热轧，加热及保温过程中无保护气氛，热轧共9道次，最终热轧至10mm厚，终轧温度控制在1000℃以上，热轧后淬火处理，获得合金坯锭。将热轧板表层磨或铣掉0.1mm厚，然后进行冷轧变形，获得厚度为140μm的合金带材，每道次厚度压下量控制在13%。冷轧带材在氩氢混合气氛下氢气体积占1%进行再结晶退火，具体工艺：1200℃保温23min，升温速率为2℃/min，得到高强度镍基合金基带，带材表面的{111}极图如图1所示。
实施例2
以纯度为99.99%的Ni板、纯度为99.99%的W块和纯度为99.99%的石墨为原材料，按照W的原子百分含量为5%，C的含量为0.07%配比，通过垂直连铸的方法获得连铸坯，厚度为280mm，其中，浇铸温度为1530℃，拉坯速度为100mm/min，冷却水的温度控制在29℃。将连铸坯升温至1290℃保温1小时后进行热轧，加热及保温过程中无保护气氛，热轧共9道次，最终热轧至10mm厚，终轧温度控制在1000℃以上，热轧后淬火处理。将热轧板表层磨或铣掉0.3mm厚，然后进行冷轧变形，获得厚度为60μm的合金带材，每道次厚度压下量控制在15%。冷轧带材在氩氢混合气氛下氢气体积占1.5%进行再结晶退火，具体工艺：1200℃保温23min，升温速率为6℃/min，得到高强度镍基合金基带，带材表面的{111}极图如图1所示。
实施例3
以纯度为99.99%的Ni板、纯度为99.99%的W块和纯度为99.99%的石墨为原材料，按照W的原子百分含量为5%，C的含量为0.1%配比，通过垂直连铸的方法获得连铸坯，厚度为200mm，其中，浇铸温度为1550℃，拉坯速度为100mm/min，冷却水的温度控制在32℃。将连铸坯升温至1300℃保温1小时后进行热轧，加热及保温过程中无保护气氛，热轧共9道次，最终热轧至10mm厚，终轧温度控制在1000℃以上，热轧后淬火处理。将热轧板表层磨或铣掉0.5mm厚，然后进行冷轧变形，获得厚度为70μm的合金带材，每道次厚度压下量控制在18%。冷轧带材在氩氢混合气氛下氢气体积占2%进行再结晶退火，具体工艺：1200℃保温25min，升温速率为10℃/min，得到高强度镍基合金基带，带材表面的{111}极图如图2所示。
Claims (1)
1.一种高强度镍基合金基带的制备方法，其特征在于，包括以下步骤：
（1）合金成分设计及坯锭的制备：
以纯度为99.99%的Ni板、纯度为99.99%的W块和纯度为99.99%的石墨为原材料，按照W的原子百分含量为5%，C的原子百分含量为0.05%~0.1%配比，通过垂直连铸的方法获得连铸坯，厚度为150mm~200mm，其中，浇铸温度为1520℃~1550℃，拉坯速度为100mm/min，冷却水的温度控制在28℃~32℃;
（2）连铸坯的热轧；
将连铸坯升温至1280℃~1300℃保温1小时后进行热轧，加热及保温过程中无保护气氛，热轧共9道次，最终热轧至10mm厚，终轧温度控制在1000℃以上，热轧后淬火处理；
（3）合金坯锭的冷轧；
对步骤（2）的热轧板表层磨或铣掉0.1mm~0.5mm厚，然后进行冷轧变形，获得厚度为40~70μm的合金带材，每道次厚度压下量控制在13%~18%；
（4）冷轧带材的再结晶退火；
冷轧带材在氩氢混合气氛下，氢气体积占1%~2%进行再结晶退火，具体工艺：1200℃保温20min~25min，升温速率：2~10℃/min。
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| CN109604546A (zh) * | 2019-01-21 | 2019-04-12 | 河南工学院 | 一种高强度、强立方织构镍钨基带的制备方法 |
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| JP2004307909A (ja) * | 2003-04-04 | 2004-11-04 | Nikko Metal Manufacturing Co Ltd | プラズマディスプレイ金属隔壁用帯鋼 |
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| CN106702216A (zh) * | 2017-02-28 | 2017-05-24 | 安阳师范学院 | 一种无铁磁性立方织构镍钨合金基带的制备方法 |
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