Effect of Ratio of Surface Area on the Corrosion Rate
Effect of Ratio of Surface Area on the Corrosion Rate
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DOI：
10.22441/sinergi.2018.1.002
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发表时间：
2018-02
期刊：
影响因子：
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通讯作者：
D. Prayitno;M. Irsyad
中科院分区：
文献类型：
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作者：
D. Prayitno;M. Irsyad
铝和钢被用来作为建筑室外面板的构造。铝和钢是用螺栓和螺母连接的。由于铝腐蚀而产生的大气。腐蚀可能导致螺栓和螺母的孔直径变大。因此，螺栓和螺母不能足够强大，以保持面板。面板可能会坍塌。这项研究的目的首先是回答一个问题，腐蚀是从哪里开始的。二是了解钢铝比表面积对铝腐蚀速度的影响。开始了将钢和铝平切成不同表面积的研究。接下来，将钢和铝作为腐蚀试验的样品用螺栓固定。样本被分成两组。A组浸泡在10%的NaCl中，B组浸泡在10%的HCl中。腐蚀速率采用失重法计算。结论如下。腐蚀不是从螺栓孔开始，而是从铝的边缘开始。增大比表面积（钢/铝）会增加铝的腐蚀速率。
Aluminum and steel are used to be a construction for a building outdoor panel. Aluminum and steel are connected by bolt and nut. An atmosphere due to a corrosion of the aluminum. The corrosion possibly to cause the hole diameter of bolt and nut to become larger. Thus the bolt and nut can not enough strong to hold the panel. The panel may collapse. The aim of the research is first to answer a question where does the corrosion starts. The second is to know the effect of ratio surface area of steel with aluminum on the corrosion rate of aluminum. The research is started to cut a steel and aluminum flat into variation surface areas. Next, the steel and aluminum are bolted as samples for corrosion test. The samples are divided into two groups. The group A was immersed in NaCl (10%) and the groups B was immersed in HCl 10%. The corrosion rate is calculated with loss weight method. The conclusions are as follow. The corrosion does not start from the bolt hole but from the edge of aluminum. Increasing the ratio of surface area (steel/aluminum) increases the corrosion rate of aluminum.