کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
614900 1454837 2013 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Beneficial effects of yttrium on the performance of Mg-3%Al alloy during wear, corrosion and corrosive wear
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Beneficial effects of yttrium on the performance of Mg-3%Al alloy during wear, corrosion and corrosive wear
چکیده انگلیسی
Magnesium has attracted considerable attention from industry especially from the transportation sector due to its high strength-to-weight ratio. However, poor wear resistance and especially low corrosion resistance of Mg are barriers to extensive use of Mg alloys. Yttrium is one of the rare-earth elements, which has been demonstrated effective in improving the corrosion resistance and tribological properties of some metallic alloys. In this work, effects of yttrium on wear, corrosion and corrosive wear of as-cast Mg-3%Al alloy were investigated. It was shown that the added Y increased the wear resistance of the alloy through the formation of a harder second phase, Al2Y. In the case of corrosion, a small amount of added Y improved the corrosion resistance but such benefit decreased when the yttrium contents was higher than 2 wt%Y. When worn in tap water involving corrosion, yttrium also improved the performance of Mg-3%Al alloy. Possible mechanisms responsible for these changes are discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tribology International - Volume 67, November 2013, Pages 154-163
نویسندگان
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