2012 Fiscal Year Final Research Report
Establishment of in-situ measurement and evaluation methods for corrosive factors in atmospheric environment
| Project/Area Number |
22560735
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Material processing/treatments
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
SHINOHARA Tadashi 独立行政法人物質・材料研究機構, 材料信頼性評価ユニット, グループリーダー (70187376)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 大気腐食 / CMセンサ / 降雨 / 酸性雨 / 海塩 / 腐食性ガス |
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| Research Abstract |
The ACM sensor output depends on solution chemistry, composition and conductivity, while it does not depend on rain speed. It was confirmed that corrosion rate of carbon steel in the rain period can be estimated by analyzing ACM sensor output. It was also confirmed that composition of the rain by measuring potential difference between Fe and Ag electrodes of the sensor. Since the ACM sensor output also becomes larger with increasing concentrations of corrosive gases, H2S or SO2, the corosivities of those gases can be evaluated by analyzing the sensor output.
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