書誌事項
- タイトル別名
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- Corrosion Resistance and Protection Mechanism of Hot-dip Zn-Al-Mg Alloy Coated Steel Sheetunder Accelerated Corrosion Environment
- 表面処理・腐食 溶融Zn-Al-Mg系合金めっき鋼板の促進腐食環境下における耐食性と防食機構
- ヒョウメン ショリ フショク ヨウユウ Zn Al Mgケイ ゴウキンメッキ コウハン ノ ソクシン フショク カンキョウ カ ニ オケル タイショクセイ ト ボウショク キコウ
- 公開日
- 2000
- DOI
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- 10.2355/tetsutohagane1955.86.8_534
- 公開者
- 一般社団法人 日本鉄鋼協会
この論文をさがす
説明
Corrosion behavior of hot-dip Zn-6%Al-03%Mg alloy coated steel sheets in cyclic corrosion test (CCT) has been investigated.<BR>The corrosion resistance was improved with increasing Mg content in the coating layer, and the highest corrosion resistance was observed at 3% Mg. In Zn-6%Al-3%Mg alloy coated steel sheet, the formations of zinc carbonate hydroxide and zinc oxide were suppressed for longer duration compared with Zn-0.2%Al and Zn-4.5%Al-0.1%Mg alloy coated steel sheets. As a result, zinc chloride hydroxide existed stable on the surface of the coating layer. From the polarization behaviors in 5% NaCl aqueous solution after CCT, it was found that the corrosion current density of Zn-6%Al-3%Mg alloy coated steel sheet was much smaller than those of Zn-0.2%Al and Zn-4.5%Al-0.1%Mg alloy coated steel sheets. As zinc carbonate hydroxide and zinc oxide had poor adhesion to the coating layer and had porous structures, these corrosion products were considered to have little protective action for the coating layer. Therefore, it was concluded that Mg suppressed the formation of such nonprotective corrosion products, resulting in the remarkable improvement of corrosion resistance.
収録刊行物
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- 鉄と鋼
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鉄と鋼 86 (8), 534-541, 2000
一般社団法人 日本鉄鋼協会
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詳細情報 詳細情報について
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- CRID
- 1390282680159559552
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- NII論文ID
- 110001457228
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- NII書誌ID
- AN00151251
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- ISSN
- 18832954
- 00211575
- http://id.crossref.org/issn/00211575
- https://id.crossref.org/issn/00211575
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- NDL書誌ID
- 5414782
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- データソース種別
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- JaLC
- NDLサーチ
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可