Study on corrosion behavior of AA 2024 aluminum alloy after active-screen and conventional plasma nitriding
Publish place: 3rd International Conference on Materials Heat Treatment
Publish Year: 1391
نوع سند: مقاله کنفرانسی
زبان: English
View: 1,790
This Paper With 5 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
ICMH03_056
تاریخ نمایه سازی: 21 تیر 1391
Abstract:
Nowadays, active-screen plasma nitriding method is going to become a widely used nitriding process due to some advantages, e.g. elimination of work piece edge effects of glow discharge. To investigate possibility of non-ferrous alloys nitriding by the use of this process, corrosion properties of AA 2024 aluminum alloy after active-screen and conventional plasma nitriding at 400, 450 and 500ºC temperatures, 10 hours process time and 25%H2-75%N2 containing atmosphere were studied. The screen was made of the commercial pure aluminum. Scanning electron microscopy results showed that a uniform AlN layer is formed on the surface of all samples. In lower temperatures nitride particles were grown on the surface, but by increasing the process temperature, these nitrides disappeared and a uniform layer was formed. Also, X-ray diffraction analysis confirmed the formation of AlN on the surface. Polarization tests were conducted in 3.5% NaCl solution. Results showed improvement in corrosion resistance after both active-screen and conventional plasma nitriding
Keywords:
AA 2024 aluminum alloy , active-screen and conventional plasma nitriding , nitride particles , corrosion
Authors
H. Poorbagheri
Department of Materials Engineering, University of Tabriz
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :