کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1605633 | 1516214 | 2016 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of silicon carbide addition on the corrosion behavior of powder metallurgy Cu30Zn brass in a 3.5Â wt% NaCl solution
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of silicon carbide addition on the corrosion behavior of powder metallurgy Cu30Zn brass in a 3.5Â wt% NaCl solution Effect of silicon carbide addition on the corrosion behavior of powder metallurgy Cu30Zn brass in a 3.5Â wt% NaCl solution](/preview/png/1605633.png)
چکیده انگلیسی
A study was made to evaluate the corrosion behavior when Cu30Zn alloy is reinforced with different weight fractions of silicon carbide (SiC) particles in a simulated sea solution (3.5Â wt% NaCl aqueous solution). The composites were produced via powder metallurgy (PM) route. For the sake of comparison, the corrosion behaviors of unreinforced and reinforced alloy were examined. Electrochemical measurements (potentiodynamic testing) showed that the corrosion rate of the composites decreased with increase of SiC weight percentages, as a result of weak microgalvanic couple between reinforcement particles and Cu30Zn matrix, and the low possibility of intermetallic phases formation. ANOVA test indicated that the variations of corrosion rate of the composites upon changing weight percentages of SiC particles are statistically significant. Polarization curves showed that the passive film tends to be less stable, and the potential difference between passivation and free corrosion points increased with increase of SiC weight percentages, as SiC cathodically protect the matrix material by sacrificial anodic dissolution of crevice regions about reinforcement particles. Scanning Electron Microscope (SEM) images of the sample's surfaces before and after testing are in agreement with the electrochemical results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 679, 15 September 2016, Pages 104-114
Journal: Journal of Alloys and Compounds - Volume 679, 15 September 2016, Pages 104-114
نویسندگان
Mohammed Ali Almomani, Wa'il Radwan Tyfour, Mohammed Hani Nemrat,