The effect of O2/H2 gas ratio of post-oxidation treatment on corrosion behaviour of plasma nitrided AISI 316 austenitic Stainless Steel
Publish place: 3rd International Conference on Materials Heat Treatment
Publish Year: 1391
نوع سند: مقاله کنفرانسی
زبان: English
View: 2,048
This Paper With 9 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
ICMH03_070
تاریخ نمایه سازی: 21 تیر 1391
Abstract:
In this research, the microstructure and corrosion properties of plasma nitriding and post oxidation treated AISI 316 austenitic stainless steel have been studied. Plasma nitriding was carried out at 450 °C for 5 hr in a D.C plasma with gas mixture of 25% N2- 75% H2 followed by post-oxidation process in gas mixtures of O2/H2: 1/3, 1/5, 1/9 and 1/12 for 30 min. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and electrochemical polarization readings. The results showed that the plasma nitriding decreases the corrosion resistance of the steel substrate. However, post-oxidizing treatment improves both uniform and pitting corrosion resistances of the nitrided specimens. This effect was most pronounced by post-oxidizing treatment at lower O2/H2 ratios due to the development of magnetite as a more dense oxide phase
Keywords:
Authors
N. Karimzadeh
Department of Materials Engineering, Islamic Azad University , Najafabad Branch, Isfahan, Iran
k Raeissi
Department of Materials Engineering, Isfahan University of Technology, Isfahan ۸۴۱۵۶-۸۳۱۱۱, Iran
m Mirjani
Department of Materials Engineering, Islamic Azad University , Najafabad Branch, Isfahan, Iran
a Saatchi
Department of Materials Engineering, Isfahan University of Technology, Isfahan ۸۴۱۵۶-۸۳۱۱۱, Iran
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 :