JP7496876B2 - 加工部耐食性に優れたZn-Al-Mg系溶融合金めっき鋼材及びその製造方法 - Google Patents
加工部耐食性に優れたZn-Al-Mg系溶融合金めっき鋼材及びその製造方法 Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims description 96
- 239000010959 steel Substances 0.000 title claims description 96
- 229910045601 alloy Inorganic materials 0.000 title claims description 72
- 239000000956 alloy Substances 0.000 title claims description 72
- 230000007797 corrosion Effects 0.000 title claims description 56
- 238000005260 corrosion Methods 0.000 title claims description 56
- 229910018134 Al-Mg Inorganic materials 0.000 title claims description 31
- 229910018467 Al—Mg Inorganic materials 0.000 title claims description 31
- 238000004519 manufacturing process Methods 0.000 title claims description 20
- 238000007747 plating Methods 0.000 claims description 67
- 239000010410 layer Substances 0.000 claims description 50
- 229910017708 MgZn2 Inorganic materials 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 35
- 238000005096 rolling process Methods 0.000 claims description 15
- 239000011247 coating layer Substances 0.000 claims description 13
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- 229910052749 magnesium Inorganic materials 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 7
- 229910052790 beryllium Inorganic materials 0.000 claims description 7
- 229910052720 vanadium Inorganic materials 0.000 claims description 7
- 229910052727 yttrium Inorganic materials 0.000 claims description 7
- 229910052684 Cerium Inorganic materials 0.000 claims description 6
- 229910052791 calcium Inorganic materials 0.000 claims description 6
- 229910052712 strontium Inorganic materials 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 239000010953 base metal Substances 0.000 claims 1
- 238000005246 galvanizing Methods 0.000 claims 1
- 230000000007 visual effect Effects 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 20
- 238000012545 processing Methods 0.000 description 14
- 239000011701 zinc Substances 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 229910052725 zinc Inorganic materials 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 5
- 230000005496 eutectics Effects 0.000 description 5
- 239000006104 solid solution Substances 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910000765 intermetallic Inorganic materials 0.000 description 4
- 229910000611 Zinc aluminium Inorganic materials 0.000 description 3
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000010960 cold rolled steel Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 2
- 229910001297 Zn alloy Inorganic materials 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 239000008397 galvanized steel Substances 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910003023 Mg-Al Inorganic materials 0.000 description 1
- 229910019752 Mg2Si Inorganic materials 0.000 description 1
- 229910019805 Mg2Zn11 Inorganic materials 0.000 description 1
- -1 Mg32(Al Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910000905 alloy phase Inorganic materials 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
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
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- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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Description
厚さが0.8mmである低炭素鋼冷延鋼板を用意した後、上記冷延鋼板を脱脂し、この後、10vol%水素-90vol%窒素からなる還元性雰囲気で800℃に焼鈍熱処理した。この後、上記熱処理された素地鋼板を下記表1に記載された450℃のめっき浴に沈積して溶融めっきした後、溶融合金めっき層の厚さが約10μmになるようにガスワイピングを介してめっき付着量を制御し、ガス冷却、水冷却及び調質圧延(SPM)してZn-Al-Mg系溶融合金めっき鋼材を製造した。このとき、上記ガス冷却及び水冷却時に、下記表1に記載された条件を用いた。上記Zn-Al-Mg系溶融合金めっき鋼材にエポキシ系列の被覆を10μmの厚さで被覆した。このように製造された上記Zn-Al-Mg系溶融合金めっき鋼材について溶融合金めっき層の合金組成を測定した後、その結果を下記表1に示した。また、上記Zn-Al-Mg系溶融合金めっき鋼材を曲率半径5R、90°に曲げ加工した後、溶融合金めっき層内のMgZn2相の分率及び割れ数、被覆層の割れ発生有無、加工部耐食性などを評価した後、その結果を下記表2に示した。
○:被覆層割れ及びめっき層割れによって素地鉄が外部環境に露出する
×:被覆層に割れが発生せず、素地鉄が外部環境に露出しない
○:10日経過後の観察時に腐食生成物の生成無し
×:10日経過後の観察時に腐食生成物が生成有り
20、20’ 溶融合金めっき層
30、30’ 粗大割れ
40 被覆層
100、100’ Zn-Al-Mg系溶融合金めっき鋼材
Claims (7)
- 素地鉄;及び
前記素地鉄上に形成された溶融合金めっき層を含み、
前記溶融合金めっき層は重量%で、Al:8%超過~25%、Mg:4%超過~12%
、Be、Ca、Ce、Li、Sc、Sr、V及びYからなる群から選択された1種以上を
合計量で0.0005~0.009%、残部Zn及びその他の不可避不純物を含み、
前記溶融合金めっき層内のMgZn2相の分率は10~45面積%であり、
前記MgZn2相はその内部に割れを有し、前記割れは鋼板の厚さ方向への断面を基準
とするときに観察される視野で、前記鋼板の厚さ方向の垂直方向に100μm当たり3~
80個存在する、加工部耐食性に優れたZn-Al-Mg系溶融合金めっき鋼材。 - 前記MgZn2相の内部に存在する割れは、その長さの合計が3~300μmである、請求項1に記載の加工部耐食性に優れたZn-Al-Mg系溶融合金めっき鋼材。
- 素地鉄を用意する段階;
前記素地鉄を重量%で、Al:8%超過~25%、Mg:4%超過~12%、Be、C
a、Ce、Li、Sc、Sr、V及びYからなる群から選択された1種以上を合計量で0
.0005~0.009%、残部Zn及びその他の不可避不純物を含むめっき浴に通過さ
せて溶融めっきする段階;及び
前記溶融めっきされた素地鉄をガスワイピング及び冷却して、前記素地鉄上に溶融合金
めっき層を形成させる段階;を含み、
前記冷却は、露点温度が-5~50℃であるガスを付与する第1段階;鋼材と水冷浴槽
との温度差を10~300℃になるようにして冷却する第2段階;及び、調質圧延を適用
する第3段階を含む、加工部耐食性に優れたZn-Al-Mg系溶融合金めっき鋼材の製
造方法。 - 前記素地鉄を溶融めっきする段階の前に、前記素地鉄を400~900℃で熱処理する
段階をさらに含む、請求項3に記載の加工部耐食性に優れたZn-Al-Mg系溶融合金
めっき鋼材の製造方法。 - 前記熱処理は体積%で、5~20%の水素及び80~95%の窒素からなる還元性雰囲
気で行われる、請求項4に記載の加工部耐食性に優れたZn-Al-Mg系溶融合金めっ
き鋼材の製造方法。 - 前記めっき浴の温度は400~550℃である、請求項3に記載の加工部耐食性に優れ
たZn-Al-Mg系溶融合金めっき鋼材の製造方法。 - 前記調質圧延時の圧下率は2%以下(0%は除く)である、請求項3に記載の加工部耐
食性に優れたZn-Al-Mg系溶融合金めっき鋼材の製造方法。
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004068075A (ja) | 2002-08-06 | 2004-03-04 | Jfe Steel Kk | 加工性および耐食性に優れた溶融Zn−Al−Mg系めっき鋼板およびその製造方法 |
JP2017066457A (ja) | 2015-09-29 | 2017-04-06 | 新日鐵住金株式会社 | 加工性と耐食性に優れるMg含有合金めっき鋼材 |
CN108588491A (zh) | 2018-06-05 | 2018-09-28 | 马鞍山钢铁股份有限公司 | 一种浸镀性优良的热浸镀Zn-Al-Mg镀层钢板及生产方法 |
WO2019132412A1 (ko) | 2017-12-26 | 2019-07-04 | 주식회사 포스코 | 내식성 및 표면 평활성이 우수한 아연합금도금강재 및 그 제조방법 |
US20190345584A1 (en) | 2016-12-23 | 2019-11-14 | Posco | Zn-mg alloy plated steel material having excellent corrosion resistance and plating adhesion |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02170961A (ja) * | 1988-12-23 | 1990-07-02 | Nippon Steel Corp | スポット溶接性に優れた合金化亜鉛めっき鋼板の製造方法 |
JP3433077B2 (ja) | 1997-11-26 | 2003-08-04 | 新日本製鐵株式会社 | コンクリート構造用鋼材 |
JPH11323524A (ja) * | 1998-03-10 | 1999-11-26 | Kokoku Kousensaku Kk | 溶融めっき金属線およびその製造方法 |
KR100342913B1 (ko) | 2000-07-04 | 2002-07-02 | 조재철 | 칼라강판 및 그 제조방법 |
JP3732141B2 (ja) * | 2001-11-09 | 2006-01-05 | 新日本製鐵株式会社 | 加工後の耐食性に優れた溶融亜鉛−Al系合金めっき鋼板及びその製造方法 |
JP2005264188A (ja) * | 2004-03-16 | 2005-09-29 | Nippon Steel Corp | 曲げ加工性に優れる溶融Zn−Al系合金めっき鋼材及びその製造方法 |
JP4461866B2 (ja) * | 2004-03-24 | 2010-05-12 | Jfeスチール株式会社 | 耐食性および曲げ加工性に優れた溶融Zn−Al系合金めっき鋼板およびその製造方法 |
JP4374281B2 (ja) * | 2004-05-26 | 2009-12-02 | 新日本製鐵株式会社 | 加工部耐食性に優れる溶融めっき鋼材 |
KR101535073B1 (ko) | 2012-08-01 | 2015-07-10 | 동국제강주식회사 | 가공성 및 내식성이 우수한 아연-알루미늄계 합금도금강판의 제조방법 |
KR20140074231A (ko) * | 2012-12-07 | 2014-06-17 | 동부제철 주식회사 | 내식성, 가공성 및 외관이 우수한 합금도금강판 및 그 제조방법 |
CN105063484B (zh) * | 2015-08-28 | 2017-10-31 | 宝山钢铁股份有限公司 | 屈服强度500MPa级高延伸率热镀铝锌及彩涂钢板及其制造方法 |
KR101767788B1 (ko) * | 2015-12-24 | 2017-08-14 | 주식회사 포스코 | 내마찰성 및 내백청성이 우수한 도금 강재 및 그 제조방법 |
JP6249113B2 (ja) * | 2016-01-27 | 2017-12-20 | Jfeスチール株式会社 | 高降伏比型高強度亜鉛めっき鋼板及びその製造方法 |
KR101819393B1 (ko) * | 2016-12-22 | 2018-01-16 | 주식회사 포스코 | 용접성 및 프레스 가공성이 우수한 용융 아연계 도금강재 및 그 제조방법 |
KR102235255B1 (ko) * | 2017-12-26 | 2021-04-02 | 주식회사 포스코 | 내식성 및 표면 평활성이 우수한 아연합금도금강재 및 그 제조방법 |
KR102031466B1 (ko) * | 2017-12-26 | 2019-10-11 | 주식회사 포스코 | 표면품질 및 내식성이 우수한 아연합금도금강재 및 그 제조방법 |
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Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004068075A (ja) | 2002-08-06 | 2004-03-04 | Jfe Steel Kk | 加工性および耐食性に優れた溶融Zn−Al−Mg系めっき鋼板およびその製造方法 |
JP2017066457A (ja) | 2015-09-29 | 2017-04-06 | 新日鐵住金株式会社 | 加工性と耐食性に優れるMg含有合金めっき鋼材 |
US20190345584A1 (en) | 2016-12-23 | 2019-11-14 | Posco | Zn-mg alloy plated steel material having excellent corrosion resistance and plating adhesion |
WO2019132412A1 (ko) | 2017-12-26 | 2019-07-04 | 주식회사 포스코 | 내식성 및 표면 평활성이 우수한 아연합금도금강재 및 그 제조방법 |
CN108588491A (zh) | 2018-06-05 | 2018-09-28 | 马鞍山钢铁股份有限公司 | 一种浸镀性优良的热浸镀Zn-Al-Mg镀层钢板及生产方法 |
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