JP6999810B2 - 高温耐酸化性が向上されたジルコニウム合金被覆管及びその製造方法 - Google Patents
高温耐酸化性が向上されたジルコニウム合金被覆管及びその製造方法 Download PDFInfo
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- 238000005253 cladding Methods 0.000 title claims description 89
- 229910001093 Zr alloy Inorganic materials 0.000 title claims description 46
- 230000003647 oxidation Effects 0.000 title claims description 38
- 238000007254 oxidation reaction Methods 0.000 title claims description 38
- 238000004519 manufacturing process Methods 0.000 title claims description 19
- 239000010409 thin film Substances 0.000 claims description 133
- 238000007740 vapor deposition Methods 0.000 claims description 49
- 238000000034 method Methods 0.000 claims description 37
- 238000007733 ion plating Methods 0.000 claims description 35
- 229910052804 chromium Inorganic materials 0.000 claims description 14
- 230000001590 oxidative effect Effects 0.000 claims description 9
- 238000000151 deposition Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 description 30
- 239000011651 chromium Substances 0.000 description 24
- 239000003758 nuclear fuel Substances 0.000 description 19
- 230000000052 comparative effect Effects 0.000 description 14
- 239000011248 coating agent Substances 0.000 description 10
- 238000000576 coating method Methods 0.000 description 10
- 239000010408 film Substances 0.000 description 8
- 230000003746 surface roughness Effects 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 229910000765 intermetallic Inorganic materials 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 229910052758 niobium Inorganic materials 0.000 description 5
- 238000005240 physical vapour deposition Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000002441 X-ray diffraction Methods 0.000 description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 4
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910052718 tin Inorganic materials 0.000 description 4
- 229910052726 zirconium Inorganic materials 0.000 description 4
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 239000004173 sunset yellow FCF Substances 0.000 description 3
- WVCHIGAIXREVNS-UHFFFAOYSA-N 2-hydroxy-1,4-naphthoquinone Chemical compound C1=CC=C2C(O)=CC(=O)C(=O)C2=C1 WVCHIGAIXREVNS-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001513 hot isostatic pressing Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910004349 Ti-Al Inorganic materials 0.000 description 1
- 229910004692 Ti—Al Inorganic materials 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011978 dissolution method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- -1 oxygen ions Chemical class 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
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- 238000004544 sputter deposition Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910001928 zirconium oxide 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
- C22C28/00—Alloys based on a metal not provided for in groups C22C5/00 - C22C27/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
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- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
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Description
したがって、原子力発電の安定性と経済性を大きく増大させることができると予想される。
本発明は、ジルコニウム合金被覆管;及び前記被覆管上にコーティングされたCr-Al薄膜を含み、前記薄膜は、アークイオンプレーティングを通じて蒸着されたものであり、前記薄膜内のAl含量は、5重量%~20重量%であることを特徴とする高温耐酸化性が向上されたジルコニウム合金被覆管を提供する。
-ジルカロイ-2(Zircaloy-2):1.20%~1.70% Sn;0.07%~0.20% Fe;0.05%~1.15% Cr;0.03%~0.08% Ni;900ppm~1500ppm O;残余Zr。
-ZILRO:0.5%~2.0% Nb;0.7%~1.5% Sn;0.07%~0.28%のFe、Co、Ni、Crから選択された少なくとも一つの成分;最大200ppm C;残余Zr。
-M5:0.8%~1.2% Nb;0.090%~0.149% O;200ppm~1000ppm Fe;残余Zr。
-HANA:約1.1% Nb;約0.05% Cu;残余Zr。
-最適化ZILRO(Optimized-ZILRO):0.8%~1.2% Nb;0.6%~0.9% Sn;0.090%~0.13% Fe;0.105%~0.145% O;残余Zr。
-E110:約1.0% Nb;残余Zr。
本発明は、(a)Cr及びAlを含むターゲットを製造するステップ;及び(b)前記ターゲットに電流及びバイアス電圧を印加するアークイオンプレーティングを通じてジルコニウム合金被覆管上にCr-Al薄膜を蒸着させるステップを含み、前記ターゲット内のAl含量は、7重量%~23重量%であることを特徴とする高温耐酸化性が向上されたジルコニウム合金被覆管の製造方法を提供する。
公知の方法でCr及びAlを含むターゲットを製造した。このとき、ターゲット内のAl含量は、10重量%である。このとき、ターゲットが蒸着前に酸化されることを防止するために、1×10-6 torr~1×10-5 torrの真空状態にした後、キャリアガスであるアルゴン(Ar)を注入して5~20mTorrに作動圧力を設定した。ターゲットに90Aの電流及び150Vのバイアス電圧を印加するアークイオンプレーティングを通じてジルカロイ-4(Zircaloy-4)材質の被覆管上に50μm厚さのCr-Al薄膜を蒸着させた。Cr-Al薄膜をEDX分析した結果、薄膜内のAl含量は、7.3重量%であることが確認される。
ターゲット内のAl含量が15重量%であること以外は、実施例1と同一の方法でジルカロイ-4(Zircaloy-4)材質の被覆管上にCr-Al薄膜を蒸着させた。Cr-Al薄膜をEDX分析した結果、薄膜内のAl含量は、11.4重量%であることが確認される。
ターゲット内のAl含量が20重量%であること以外は、実施例1と同一の方法でジルカロイ-4(Zircaloy-4)材質の被覆管上にCr-Al薄膜を蒸着させた。Cr-Al薄膜をEDX分析した結果、薄膜内のAl含量は、17.8重量%であることが確認される。
ターゲット内のAl含量が25重量%であること以外は、実施例1と同一の方法でジルカロイ-4(Zircaloy-4)材質の被覆管上にCr-Al薄膜を蒸着させた。Cr-Al薄膜をEDX分析した結果、薄膜内のAl含量は、21.1重量%であることが確認される。
別途の薄膜を蒸着しないジルカロイ-4(Zircaloy-4)材質の被覆管を準備した。
50μm厚さのCr薄膜が蒸着されたジルカロイ-4(Zircaloy-4)材質の被覆管を準備した。
Claims (4)
- (a)Cr及びAlを含むターゲットを製造するステップ;及び
(b)前記ターゲットに電流及びバイアス電圧を印加するアークイオンプレーティングを通じてジルコニウム合金被覆管上にCr-Al薄膜を蒸着させるステップを含み、
前記ターゲット内のAl含量は、7重量%~23重量%であり、
前記ステップ(b)で、印加された電流は、30A~120A、バイアス電圧は、100V~400Vであり、
前記ステップ(b)で、蒸着時の作動圧力を5mTorr~50mTorrに維持し、
前記ステップ(b)で、蒸着された薄膜の算術平均粗さ(arithmeticalaverage roughness;Ra)は、5μm以下である
ことを特徴とする、高温耐酸化性が向上されたジルコニウム合金被覆管の製造方法。 - 前記ステップ(b)で、蒸着は、200℃~300℃の温度で行われることを特徴とする、請求項1に記載の高温耐酸化性が向上されたジルコニウム合金被覆管の製造方法。
- 前記ステップ(b)で、蒸着は、2μm/h~15μm/hの速度で行われることを特徴とする、請求項1に記載の高温耐酸化性が向上されたジルコニウム合金被覆管の製造方法。
- 前記ステップ(b)で、蒸着された薄膜を1200℃及び水蒸気雰囲気条件で2000秒間酸化させた結果、重量増加量は、1mg/dm2~3,000mg/dm2であることを特徴とする、請求項1に記載の高温耐酸化性が向上されたジルコニウム合金被覆管の製造方法。
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- 2018-11-14 WO PCT/KR2018/013879 patent/WO2019098665A1/ko unknown
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US11118260B2 (en) | 2021-09-14 |
WO2019098665A1 (ko) | 2019-05-23 |
KR20190055002A (ko) | 2019-05-22 |
EP3696823A1 (en) | 2020-08-19 |
CN111344807B (zh) | 2023-08-01 |
EP3696823B1 (en) | 2024-04-10 |
US20200283885A1 (en) | 2020-09-10 |
JP2021502564A (ja) | 2021-01-28 |
EP3696823A4 (en) | 2021-07-28 |
CN111344807A (zh) | 2020-06-26 |
KR102029284B1 (ko) | 2019-10-07 |
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