کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1471303 1510042 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of magnesium hydride on the corrosion behavior of an AZ91 magnesium alloy in sodium chloride solution
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Effect of magnesium hydride on the corrosion behavior of an AZ91 magnesium alloy in sodium chloride solution
چکیده انگلیسی

The effect of magnesium hydride on the corrosion behavior of an as-cast AZ91 alloy in 3.5 wt.% NaCl solution was investigated using gas collection method and potentiostatic test. The Pourbaix diagram of Mg–H2O system was built using thermodynamic calculation. It was possible that magnesium hydride could form in the whole pH range in theory. The experimental results showed that at cathodic region, magnesium hydride formed on surface, which was the controlling process for the corrosion behavior of AZ91 alloy; at anodic region and free corrosion potential, magnesium hydride model and partially protective film model, monovalent magnesium ion model and particle undermining model were responsible for the corrosion process of AZ91 alloy.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 50, Issue 12, December 2008, Pages 3610–3614
نویسندگان
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