کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7922187 1511756 2018 76 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of laser surface melting and subsequent re-aging on microstructure and corrosion behavior of aged S32950 duplex stainless steel
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Effect of laser surface melting and subsequent re-aging on microstructure and corrosion behavior of aged S32950 duplex stainless steel
چکیده انگلیسی
In the present study, the microstructure and corrosion behavior of duplex stainless steel (DSS, S32950) after aging, laser surface melting (LSM) without and with subsequent re-aging were investigated. After LSM, the pitting corrosion resistance of the aged DSS was restored. It is attributed to re-dissolution and removal of M23C6, σ and γ2 phases. The purpose of re-aging is to investigate the phase balance and hence corrosion performance of the laser-melted DSS after subjected to isothermal aging at 800 °C, a condition which might be encountered during application. Results of the present study show that the laser-melted specimens after re-aging is less susceptible to pitting corrosion because the content of γ2 (the anode) is close to that of σ and δ (the cathodes).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 207, 1 March 2018, Pages 451-464
نویسندگان
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