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结合生产实际，模拟不同浓度的天然碱苛化液，进行不同温度、不同时间的静态、动态腐蚀试验，以考查天然碱成分对钢材焊接接头腐蚀的影响规律．利用透射电镜观察分析焊接接头表面的腐蚀形貌及产物，以揭示其腐蚀机理
Combined with the actual production, different concentrations of caustic soda caustic were simulated to carry out static and dynamic corrosion tests at different temperatures and different times to examine the influence of trona composition on the corrosion of steel welded joints. The corrosion morphology and products on the surface of the welded joint were observed by transmission electron microscope to reveal its corrosion mechanism