Inhibitive Effect of Benzotriazole on the Stress Corrosion Cracking of Copper-based Alloy (Brass) in Ammonia Solutions
Publish place: The 6th International Conference on Exhibitiion on Metallurgy and Materials Engineering
Publish Year: 1396
نوع سند: مقاله کنفرانسی
زبان: English
View: 499
This Paper With 6 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
IMES11_313
تاریخ نمایه سازی: 7 اسفند 1396
Abstract:
Copper-Based Alloys are not corrosion resistant in many ammoniacal solutions, so they are used in many applications with kind of precautions. Therefore it is recommended to use them with some corrosion inhibitors especially in cases which the system is under stress. The stress corrosion cracking (SCC) behavior of 70/30 brass in Mattsson’s solution containing various concentrations of Benzotriazole was investigated by slow strain rate tests (SSRT) and electrochemical Noise analysis. The results confirmed that the susceptibility of brass to SCC decreased with increasing BTA concentrations. Electrochemical noise analysis showed a peculiar variation in potential during SSRT which can be attributed to the presence of inhibitor in solution. Such behaviors helped to elucidate the mechanism of SCC of the alloy and how it can be protected.
Keywords:
Authors
Mohsen Saremi
Professor, Metallurgy and Materials Engineering School of Metallurgy and Materials Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran
M. H. Johar
Master Student, Corrosion and Materials Protection School of Metallurgy and Materials Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran