Observation and analysis of discoloration due to metal corrosion! Introducing case studies on the investigation of discoloration causes.
We would like to introduce a case where discoloration due to common metal corrosion was observed and analyzed at our company. Upon observation with a scanning electron microscope (SEM), traces of corrosion were confirmed. This discoloration is presumed to have occurred due to the corrosion of iron material beneath the nickel plating, resulting in the precipitation of rust, which is the product of that corrosion, on the surface. 【Case Overview】 ■Observation of Discolored Area: Magnified view of the discolored area ■Magnified Observation and Elemental Analysis: Further magnified observation and elemental analysis of the discolored area ■Structural Analysis: Structural analysis using Raman spectroscopy ■Cause of Discoloration: The discoloration is primarily due to the corrosion of iron, known as "red rust." *For more details, please refer to the PDF document or feel free to contact us.
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Toho Chemical Research Co., Ltd.'s Materials Analysis Department provides analytical and analytical services to assist customers in confirming the quality of their materials and components, as well as solving problems through expanded observation, measurement, composition investigation, and foreign substance analysis. We also assist in evaluating the differences between existing and new products, as well as in thin film evaluation through collaboration with the Ion Plating Department. Our motto is "Together with our customers," and by closely engaging in meetings and information exchange with our clients, we provide solutions to problems and the analytical information they need.