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
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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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
Journal: Journal of Alloys and Compounds - Volume 569, 25 August 2013, Pages 35-44
نویسندگان
D.S. Aydin, Z. Bayindir, M. Hoseini, M.O. Pekguleryuz,