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
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Detection of deleterious phases in duplex stainless steel by weak galvanostatic polarization in alkaline solution
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
نویسندگان
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