کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1581978 | 1514864 | 2008 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrochemical corrosion and mechanical behaviors of the charged magnesium
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Electrochemical corrosion and mechanical behaviors of the charged magnesium Electrochemical corrosion and mechanical behaviors of the charged magnesium](/preview/png/1581978.png)
چکیده انگلیسی
The electrochemical corrosion and mechanical behaviors of the charged magnesium were investigated using Mott-Schottky (M-S) test and slow strain rate test (SSRT), respectively. The results showed that the hole carrier and vacancy concentrations in the corrosion film increased after cathodic charging due to the formation of magnesium hydroxide. The increasing vacancy concentration caused the increase of the permeation rate of hydrogen to the interior of matrix. When the inner stress caused by synergistic effect of hydrogen pressure and expansion stress of the formation of magnesium hydride was above the fracture strength, crack initiated and propagated. It indicated that hydrogen embrittlement (HE) mechanism for the stress cracking corrosion (SCC) of magnesium and its alloys. After cathodic charging, the corrosion resistance and mechanical properties of matrix deteriorated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 494, Issues 1â2, 25 October 2008, Pages 257-262
Journal: Materials Science and Engineering: A - Volume 494, Issues 1â2, 25 October 2008, Pages 257-262
نویسندگان
Jian Chen, Jianqiu Wang, Enhou Han, Wei Ke,