JP2017510702A - 耐液体金属脆化割れ性に優れた溶融亜鉛めっき鋼板 - Google Patents
耐液体金属脆化割れ性に優れた溶融亜鉛めっき鋼板 Download PDFInfo
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- 229910001335 Galvanized steel Inorganic materials 0.000 title claims abstract description 29
- 239000008397 galvanized steel Substances 0.000 title claims abstract description 29
- 238000005336 cracking Methods 0.000 title claims abstract description 22
- 229910001338 liquidmetal Inorganic materials 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 70
- 239000010959 steel Substances 0.000 claims abstract description 70
- 229910001297 Zn alloy Inorganic materials 0.000 claims abstract description 40
- 229910001566 austenite Inorganic materials 0.000 claims abstract description 11
- 229910045601 alloy Inorganic materials 0.000 claims description 39
- 239000000956 alloy Substances 0.000 claims description 39
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 16
- 229910052782 aluminium Inorganic materials 0.000 claims description 16
- 229910018137 Al-Zn Inorganic materials 0.000 claims description 12
- 229910018573 Al—Zn Inorganic materials 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 238000005275 alloying Methods 0.000 claims description 6
- 229910052748 manganese Inorganic materials 0.000 claims description 6
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 230000001629 suppression Effects 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 230000008021 deposition Effects 0.000 claims 1
- 238000007747 plating Methods 0.000 abstract description 45
- 238000003466 welding Methods 0.000 abstract description 13
- 239000010410 layer Substances 0.000 description 103
- 239000011701 zinc Substances 0.000 description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 27
- 229910052725 zinc Inorganic materials 0.000 description 15
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 14
- 229910000937 TWIP steel Inorganic materials 0.000 description 12
- 239000011247 coating layer Substances 0.000 description 12
- 238000005246 galvanizing Methods 0.000 description 9
- 239000011572 manganese Substances 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000009713 electroplating Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000005554 pickling Methods 0.000 description 3
- 101100493710 Caenorhabditis elegans bath-40 gene Proteins 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000002436 steel type Substances 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910000797 Ultra-high-strength steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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Abstract
Description
(但し、上記tは上記溶融亜鉛めっき層の厚さである。)
2 合金化抑制層
3 Zn層
4 表面酸化物
10 素地鋼板
20 溶融亜鉛めっき層
21 Fe−Zn合金層
22 Zn層
23 Fe−Al又はFe−Al−Zn合金層
30 Fe−Ni合金層
40 内部酸化物
Claims (9)
- オーステナイトの分率が90面積%以上の微細組織を有する素地鋼板と、
前記素地鋼板上に形成された溶融亜鉛めっき層
とを含み、
前記溶融亜鉛めっき層は、
Fe−Zn合金層、及び
前記Fe−Zn合金層上に形成されたZn層を含み、
前記Fe−Zn合金層は[(3.4×t)/6]μm以上の厚さを有する、耐液体金属脆化割れ性に優れた溶融亜鉛めっき鋼板。
(但し、前記tは前記溶融亜鉛めっき層の厚さである。) - 前記Fe−Zn合金層は3〜15重量%のFeを含む、請求項1に記載の耐液体金属脆化割れ性に優れた溶融亜鉛めっき鋼板。
- 前記素地鋼板は、重量%で、C:0.10〜0.30%、Mn:10〜30%、Si:0.01〜0.03%、Ti:0.05〜0.2%、Mn:10〜30%、Al:0.5〜3.0%、Ni:0.001〜10%、Cr:0.001〜10%、N:0.001〜0.05%、P:0.020%以下、S:0.001〜0.005%、残部Fe及びその他の不可避不純物を含む、請求項1に記載の耐液体金属脆化割れ性に優れた溶融亜鉛めっき鋼板。
- 前記溶融亜鉛めっき層は前記Fe−Zn合金層の下部にFe−Al又はFe−Al−Zn合金層がさらに含まれる、請求項1に記載の耐液体金属脆化割れ性に優れた溶融亜鉛めっき鋼板。
- 前記合金化抑制層は0.6重量%以下のAlを含む、請求項4に記載の耐液体金属脆化割れ性に優れた溶融亜鉛めっき鋼板。
- 前記素地鋼板の表面の直下にはFe−Ni合金層がさらに含まれる、請求項1に記載の耐液体金属脆化割れ性に優れた溶融亜鉛めっき鋼板。
- 前記Fe−Ni合金層は300〜1000mg/m2の付着量を有するNiコーティングによって形成される、請求項1に記載の耐液体金属脆化割れ性に優れた溶融亜鉛めっき鋼板。
- 前記Fe−Ni合金層は0.05〜5μmの厚さを有する、請求項1に記載の耐液体金属脆化割れ性に優れた溶融亜鉛めっき鋼板。
- 前記素地鋼板と前記溶融亜鉛めっき層の間には、Fe−X合金層、Fe−Al−X合金層、Fe−Al−Zn−X合金層、及びFe−Zn−X合金層からなる群から選択された1種以上をさらに含む、請求項1に記載の耐液体金属脆化割れ性に優れた溶融亜鉛めっき鋼板。
(但し、前記XはNi及びCrのうち一つである。)
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Application Number | Priority Date | Filing Date | Title |
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KR1020130163336A KR101568543B1 (ko) | 2013-12-25 | 2013-12-25 | 액체금속취화에 의한 크랙 저항성이 우수한 용융아연도금강판 |
KR10-2013-0163336 | 2013-12-25 | ||
PCT/KR2014/012824 WO2015099455A1 (ko) | 2013-12-25 | 2014-12-24 | 액체금속취화에 의한 크랙 저항성이 우수한 용융아연도금강판 |
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JP2017510702A true JP2017510702A (ja) | 2017-04-13 |
JP6317453B2 JP6317453B2 (ja) | 2018-04-25 |
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US (1) | US20160319415A1 (ja) |
EP (1) | EP3088557B1 (ja) |
JP (1) | JP6317453B2 (ja) |
KR (1) | KR101568543B1 (ja) |
CN (1) | CN105849304A (ja) |
WO (1) | WO2015099455A1 (ja) |
Cited By (6)
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JP2021500474A (ja) * | 2016-12-21 | 2021-01-07 | アルセロールミタル | 被覆鋼板の製造方法 |
JP2022130469A (ja) * | 2016-12-21 | 2022-09-06 | アルセロールミタル | 被覆鋼板の製造方法 |
JP7394921B2 (ja) | 2016-12-21 | 2023-12-08 | アルセロールミタル | 被覆鋼板の製造方法 |
JP2021500473A (ja) * | 2017-10-24 | 2021-01-07 | アルセロールミタル | 合金化溶融亜鉛めっき鋼板の製造方法 |
JP7062058B2 (ja) | 2017-10-24 | 2022-05-02 | アルセロールミタル | 合金化溶融亜鉛めっき鋼板の製造方法 |
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WO2023132244A1 (ja) * | 2022-01-06 | 2023-07-13 | 日本製鉄株式会社 | 溶接継手 |
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WO2015099455A8 (ko) | 2015-08-20 |
EP3088557B1 (en) | 2018-07-11 |
US20160319415A1 (en) | 2016-11-03 |
KR20150075291A (ko) | 2015-07-03 |
EP3088557A1 (en) | 2016-11-02 |
JP6317453B2 (ja) | 2018-04-25 |
WO2015099455A1 (ko) | 2015-07-02 |
KR101568543B1 (ko) | 2015-11-11 |
CN105849304A (zh) | 2016-08-10 |
EP3088557A4 (en) | 2017-03-22 |
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