کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1471159 990342 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of grain size and twins on corrosion behaviour of AZ31B magnesium alloy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Effect of grain size and twins on corrosion behaviour of AZ31B magnesium alloy
چکیده انگلیسی

Grain refining is a promising approach to improve mechanical properties of magnesium alloys, but how grain size and twins affect corrosion behaviour is not well understood. In this work, corrosion resistance of AZ31B alloy with different grain sizes is studied in 3.5% NaCl solution using immersion testing, evolved hydrogen gas measurement and potentiodynamic polarisation measurement. Intra-granular corrosion was predominant and the existence of twins further accelerated the corrosion. The effect of grain size was more pronounced in the corrosion of the untwinned microstructure. The corrosion rate significantly increased as the average grain size increased from 65 to 250 μm.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 52, Issue 2, February 2010, Pages 589–594
نویسندگان
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