Development of CWD process for surface treatment of magnesium

镁表面处理CWD工艺的开发

• 批准号: 22656159
• 负责人: HARA Nobuyoshi
• 金额: $ 2.21万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22656159/
• 关键词: 腐食防食; マグネシウム; 耐食性; 表面処理; ハイドロタルサイト; 乾湿繰り返し; 化学組成; 結晶構造

In order to develop a cyclic wet-dry (CWD)process as a new surface treatment method for improving corrosion resistance of Mg alloys, the composition of starting solution, the process conditions and the corrosion resistance of reaction products have been examined. It was found that hydrotalcite ((Mg_6Al_2(OH)_<16> CO_3・4H_2O))or hydrotalcite-like compounds can be formed under well-controlled CWD conditions using NaCl+ AlCl_3 or Na_2SO_4+ Al_2(SO_4)_3 solutions and they improves the corrosion resistance of Mg alloys.

为了开发循环湿-干（CWD）工艺作为一种提高镁合金耐腐蚀性能的新型表面处理方法，对起始溶液的组成、工艺条件和反应产物的耐腐蚀性进行了研究。使用 NaCl+ AlCl_3 或在良好控制的 CWD 条件下可以形成水滑石 ((Mg_6Al_2(OH)_<16> CO_3·4H_2O)) 或类水滑石化合物Na_2SO_4+ Al_2(SO_4)_3溶液可提高镁合金的耐腐蚀性能。

项目成果

Formation of hydrotalcite-like compound films on Mg allo

镁合金上类水滑石化合物薄膜的形成

• 发表时间: 2011
• 作者: U. K. Cho;Yu Sugawara;Izumi Muto;and Nobuyoshi Hara
• 通讯作者: and Nobuyoshi Hara

Development of a New Environmentally-friendly Surface Treatment Method for Improving Corrosion Resistance of Magnesium Alloys by Formation of Hydrotalcite-like Compound Films

开发一种通过形成类水滑石化合物膜来提高镁合金耐腐蚀性能的新型环保表面处理方法

• 发表时间: 2011
• 作者: U. K. Cho;Yu Sugawara;Izumi Muto;and Nobuyoshi Hara
• 通讯作者: and Nobuyoshi Hara

Formation of hydrotalcite-like compound films on Mg alloy

镁合金上类水滑石化合物薄膜的形成

• 发表时间: 2011
• 作者: U. K. Cho;Yu Sugawara;Izumi Muto;and Nobuyoshi Hara;U.K.Cho
• 通讯作者: U.K.Cho

Formation of Hydrotalcite-like Compounds for Improving Corrosion Resistance of Magnesium Alloys

形成类水滑石化合物以提高镁合金的耐腐蚀性

• 发表时间: 2011
• 作者: U. K. Cho;Yu Sugawara;Izumi Muto;and Nobuyoshi Hara
• 通讯作者: and Nobuyoshi Hara