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cqust110

新虫 (小有名气)


[交流] 阳极极化后的腐蚀形貌腐蚀形貌与浸泡实验后的腐蚀形貌有何不同

在做金属材料腐蚀与防护的研究过程的,我看到很多文献包括SCI等期刊中有关腐蚀的文章,文中很多腐蚀形貌都是做极化曲线后的,并不是做浸泡实验后的腐蚀形貌。想请问下各位专家、学长、学姐及同仁,阳极极化后的腐蚀形貌腐蚀形貌与浸泡实验后的腐蚀形貌有什么不同,各自有什么价值。极化后的腐蚀形貌不能代表真正意义上的腐蚀形貌,为什么很多人却还观察呢?为什么看极化后的腐蚀形貌还能发高水平的文章。谢谢各位。
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649294743

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cqust110(金币+1): 谢谢参与
This is an interesting question. From my point of view, natural corrosion in ambient environment and polarization corrosion have their own benefits. The materials characterized with good corrosion performance would prefer to be tested by polarization, since its natural corrosion process takes a relatively longer time. Another point is, you can choose and control anodic or cathodic branch of corrosion by polarization corrosion. Anodic polarization accelerate the anodic process of corrosion and vise versa. So, you should decide what kind of results you expect, and then choose the corrosion characterization methods.
Good luck.
10楼2017-03-14 18:23:52
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perseus1989

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cqust110(金币+1): 谢谢参与
应该不同的 浸泡是自然腐蚀 阳极极化其实改变了反应动力学 并不是一个简单的加速溶解, 极化后形貌同样有意义 至少代表了溶解后界面信息 也可以间接反映自腐蚀的反应过程 至于准不准有没有意义就看你怎么说了 话说自腐蚀下没有极化能得到的信息有限

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9楼2017-03-14 06:17:49
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ybhfcy

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cqust110(金币+1): 谢谢参与
引用回帖:
10楼: Originally posted by 649294743 at 2017-03-14 18:23:52
This is an interesting question. From my point of view, natural corrosion in ambient environment and polarization corrosion have their own benefits. The materials characterized with good corrosion pe ...

这个解释可以。

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11楼2017-03-16 08:07:39
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cqust110

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引用回帖:
10楼: Originally posted by 649294743 at 2017-03-14 18:23:52
This is an interesting question. From my point of view, natural corrosion in ambient environment and polarization corrosion have their own benefits. The materials characterized with good corrosion pe ...

谢谢

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12楼2017-12-29 09:30:06
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syhorchid2楼
2017-03-13 23:54   回复  
cqust110(金币+1): 谢谢参与
王惠3楼
2017-03-14 00:14   回复  
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2017-03-14 00:31   回复  
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2017-03-14 00:34   回复  
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xhmaohan6楼
2017-03-14 00:35   回复  
cqust110(金币+1): 谢谢参与
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2017-03-14 00:45   回复  
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