کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8012532 | 1517160 | 2018 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of Ca addition on selective oxidation of Al3Mg2 phase in Al-5â¯mass% Mg alloy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This study examined the effect of Ca addition on the selective oxidation of the Al3Mg2 phase in an Al-5â¯mass%Mg alloy during oxidation at 400â¯Â°C and 500â¯Â°C for 72â¯h. Ca addition led to the formation of the Al4Ca and Laves_C36 phases besides the primary Al solid solution and Al3Mg2. After the oxidation test, there was no significant oxidation in both the Ca-free and Ca-added alloy samples and no visible change in the surfaces between them at 400â¯Â°C, which is lower than the melting temperature of Al3Mg2 (451â¯Â°C). At 500â¯Â°C, the surface of the Ca-free alloy showed the formation of oxide blisters, which was not observed in the Ca-added alloy. The presence of an Al4Ca phase at the grain boundaries led to the formation of multi-element oxides containing Al, Mg, and Ca, which can contribute to the formation of a compact oxide layer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 228, 1 October 2018, Pages 108-111
Journal: Materials Letters - Volume 228, 1 October 2018, Pages 108-111
نویسندگان
Bong-Hwan Kim, Seong-Ho Ha, Young-Ok Yoon, Hyun-Kyu Lim, Shae K. Kim, Do-Hyang Kim,