Copper (Cu) is distributed in the areas where zinc has been removed! We will introduce examples of surface cross-section analysis.
This is a case study on the corrosion of brass products using a copper chloride aqueous solution, focusing on the areas where dezincification occurred, including surface observation and cross-sectional analysis. The corroded areas show white corrosion products due to the corrosion of zinc. Observations with a digital microscope revealed traces of immersion at the boundary between the corroded and normal areas. Element mapping results from the cross-section where dezincification occurred confirmed that the surface is covered with corrosion products of zinc, while copper (Cu) is distributed in the areas where dezincification took place. [Case Summary] - Observation of Corroded Areas: Observing the boundary of corrosion - Magnified Observation and Element Analysis: Further magnified observation and elemental analysis of the corroded areas - Element Mapping: Investigating elemental distribution in the cross-section *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.