کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1469786 990309 2011 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A new approach for DL-EPR testing of thermo-mechanically processed austenitic stainless steel
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
A new approach for DL-EPR testing of thermo-mechanically processed austenitic stainless steel
چکیده انگلیسی

Standard test methods such as the electrochemical potentiokinetic reactivation test (EPR) and double-loop EPR test (DL-EPR) are commonly used to characterise sensitisation behaviour in austenitic stainless steels and nickel-based alloys. In this study, the DL-EPR test is augmented by large-area image analysis (IA) to characterise and quantify the networks of attacked grain boundaries. A new analysis approach that is based on a grain boundary cluster parameter is proposed to describe the network of corrosion susceptible grain boundaries, which may be estimated from electron backscatter diffraction (EBSD) data. This method may provide a better assessment of the relative DOS of different heats of austenitic stainless steels.


► A new approach has been introduced to obtain the degree of sensitisation (DOS).
► This new approach is more accurate than standard methods.
► This may be used to compare the DOS of microstructures of different characteristics.
► The length of attacked boundaries is described by cluster compactness parameter.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 53, Issue 12, December 2011, Pages 4213–4222
نویسندگان
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