| Project/Area Number |
22656159
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Material processing/treatments
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| Research Institution | Tohoku University |
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Principal Investigator |
HARA Nobuyoshi 東北大学, 大学院・工学研究科, 教授 (40111257)
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| Co-Investigator(Kenkyū-buntansha) |
MUTO Izumi 東北大学, 大学院・工学研究科, 准教授 (20400278)
AKAO Noboru 東北大学, 大学院・工学研究科, 助手 (80222503)
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| Project Period (FY) |
2010 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥3,460,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2010: ¥1,900,000 (Direct Cost: ¥1,900,000)
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| Keywords | 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 |
|---|
| Research Abstract |
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.
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