کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1614025 1516324 2013 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The high temperature oxidation and ignition behavior of Mg-Nd alloys part I: The oxidation of dilute alloys
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
The high temperature oxidation and ignition behavior of Mg-Nd alloys part I: The oxidation of dilute alloys
چکیده انگلیسی
AbstractThe high temperature oxidation behavior of magnesium (Mg) alloys containing neodymium (Nd) was investigated at low level concentrations (0.3 and 0.5 wt.%). Continuous heating experiments carried out in dry air-flow revealed, interestingly, that the ignition temperature (Ti) is raised from 640 °C (of pure Mg) to up to 770 °C at 0.5 wt.% Nd addition. No significant improvement was detected with 0.3 wt.% Nd. The analyses of the surface indicate that the two alloys form different oxide morphologies when oxidized at 500 °C for 12 h in air. Although a more dense oxide scale forms with 0.3 wt.% Nd addition compared to pure Mg, the ignition results showed that the Nd addition below 0.5 wt.% is not effective on the oxidation resistance. The presence of Nd2O3 plays an indirect protective role delaying Mg evaporation and ignition.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 569, 25 August 2013, Pages 35-44
نویسندگان
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