کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1472238 | 990375 | 2006 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Detection of deleterious phases in duplex stainless steel by weak galvanostatic polarization in alkaline solution
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
A novel electrochemical procedure has been developed to quantify the presence of secondary phases (nitride, χ, σ) in duplex stainless steel. This is based on anodic galvanostatic polarization in a weakly alkaline solution to detect the transpassive dissolution of Cr- and Mo-rich phases. By adjusting the current density, an almost linear relation can be obtained between the “time to reach a given potential” and impact toughness. The material used was UNS S32760 (Zeron 100), isothermally aged at 650, 750, 825 and 850 °C. Distinctive features on the potential–time curves were correlated with the microstructure by examining reacted surfaces with backscattered imaging in the SEM.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 48, Issue 9, September 2006, Pages 2560–2576
Journal: Corrosion Science - Volume 48, Issue 9, September 2006, Pages 2560–2576
نویسندگان
M.A. Domínguez-Aguilar, R.C. Newman,