A comparison between the corrosion behavior of ۳۱۶L stainless steel manufactured by rolling and laser powder bed fusion in ۰.۱ M H۲SO۴ solution
سال انتشار: 1401
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 106
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شناسه ملی سند علمی:
JR_ISSIRAN-19-1_007
تاریخ نمایه سازی: 2 خرداد 1402
چکیده مقاله:
Recently, laser powder bed fusion (LPBF) technology as an important additive manufacturing (AM) technique has attracted the attention researchers. It uses a laser source to melt metal powder in layers in order to build parts. In this study, electrochemical and surface properties of ۳۱۶L stainless steel manufactured by rolling and laser powder bed fusion (LPBF) were investigated in ۰.۱ M H۲SO۴ solution. In order to examine the corrosion behavior of stainless steel in acidic medium, electrochemical methods, including electrochemical impedance spectroscopy (EIS), potentiodynamic polarization, and characterization methods such as field emission scanning electron microscopy (FESEM), and x-ray photoelectron spectroscopy (XPS), were used. As a result of the electrochemical tests, the charge transfer resistance of stainless steel fabricated by LPBF increased about ۸ times and Ecorr shifted about +۴۰ mV compared to the rolled stainless steel. LPBF produced samples had higher corrosion resistance due to the fine cellular and spherical inclusion microstructure formed during fabrication process.
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نویسندگان
Hossein Ramezanalizadeh
Department of Materials and Polymer Engineering, Faculty of Engineering, Hakim Sabzevari University, P.O. Box ۳۹۷, Sabzevar, Iran
Mahdi Yeganeh
Department of Materials Science and Engineering, Faculty of Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran
Seyed Mohammad Lari Baghal
Department of Materials Science and Engineering, Faculty of Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran
Mohammad Hosein Rezvani
Department of Materials Science and Engineering, Faculty of Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran