- （会E）Corrosion Behaviour of Mg-7.3Al Alloy in Buffered Chloride Solutions
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- 所属单位：材料科学工程学院
- 教研室：材料科学工程学院
- 发表刊物：Materials Science Forum
- 项目来源：主管部门科技项目
- 关键字：Mg-7.3Al alloy; corrosion behaviour; buffer; chloride ions
- 摘要：The Corrosion behaviour of Mg-7.3Al alloy in buffered chloride solutions was investigated in the paper. The corrosion resistances of Mg-7.3Al alloy were evaluated in different borate capacity and pH by immersion test and polarization curves. The influences of immersion time, pH and buffer borate capacity were analyzed. The results revealed that the corrosion rate of Mg-7.3Al alloy depends on the pH of corrosive solution and has no relationship with buffer capacity. In the pH 6.5 and 2g / L buffer solution, the morphologies of Mg-7.3Al alloy consist of porous pits and protuberant second phases. There are seriously corroded area and macro-uncorroded area or protuberant second phases on the sample surface. The corossion potentials of the mg alloy is kept the same value in the pH 9 solution, regardless of borate capacity is 1g/Lor 2g/L, which are higher than that in the neutural chloride solution or acid solution (pH=6.5). Borate may play an inhibition role for mg alloy by the quick corrosion test of polarisation curves.
- 第一作者：贾素秋
- 论文类型：期刊论文
- 卷号：686
- 页面范围：1
- ISSN号：0255-5476
- 是否译文：否
- 发表时间：2011-06-01
