کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
795173 1466758 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of processing on stress-corrosion behavior of die-cast Mg–Al alloy
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Effect of processing on stress-corrosion behavior of die-cast Mg–Al alloy
چکیده انگلیسی

The effect of processing and microstructure on the stress-corrosion–creep behavior of die-cast rheoformed and conventional AZ91D Mg alloy was studied. Rheoformed alloy has a globular microstructure as compared with a dendritic microstructure of conventional die-cast Mg alloys. The rheoformed die-cast alloy was obtained by stirring the melt during the solidification in a spinning crucible at the casting temperature 580 °C, where the solid fraction amounted to about 40–60%. Due to the difference between the microstructure of Mg alloys produced by the two methods, the corrosion rate of rheoformed AZ91D alloy in the corrosive 0.9% NaCl and in the borate buffer solutions was significantly less than that of a conventional dendritic die-cast alloy.Due to the delay of metal dissolution, creep life of anodized rheoformed alloy in 3% Na2SO4 solution was more than an order of magnitude longer than that of an uncoated alloy.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 208, Issues 1–3, 21 November 2008, Pages 395–399
نویسندگان
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