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دانلود رایگان مقاله آی اس آی درخواستی( Free DOWNLOAD ISI Papers )،بانک و مرجع مقالات علمی و تخصصی، پروژه، دریافت و دانلود رایگان+مجلات و نشریات آی اس آی - Effect of ECAP processing on corrosion resistance of AE21 and AE42 magnesium alloys
 
دانلود رایگان مقاله آی اس آی درخواستی( Free DOWNLOAD ISI Papers )،بانک و مرجع مقالات علمی و تخصصی، پروژه، دریافت و دانلود رایگان+مجلات و نشریات آی اس آی
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Abstract

Corrosion properties of AE21 and AE42 magnesium alloys were investigated in the extruded state and after subsequent 8 passes of Equal Channel Angular Pressing (ECAP) via route Bc, by Electrochemical Impedance Spectroscopy (EIS) in 0.1 M NaCl solution. The resulting microstructure was observed by the Transmission Electron Microscope (TEM) and the Scanning Electron Microscope (SEM). Corrosion layer created after 7 days of immersion was observed by (SEM) in order to explain different evolution of the corrosion resistance after ECAP processing in both alloys. It was found that Al-rich Al11RE3 dispersed particles (present in both alloys) strongly influence the corrosion process and enhance the corrosion resistance. Ultra-fine grained structure was found to reduce the corrosion resistance in AE21. On the other hand, the microstructure of AE42 after ECAP and particularly the better distribution of the alloying elements in the matrix enhance the corrosion resistance when compared to the extruded material.



Keywords

  • Magnesium;
  • Corrosion;
  • Extrusion;
  • ECAP;
  • Grain refinement
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نوع مطلب : درباره مقالات ISI، درباره مقالات انگلیسی، مقالات ISI، مقالات انگلیسی، 
برچسب ها : Abstract Corrosion properties of AE21 and AE42 magnesium alloys were investigated in the extruded state and after subsequent 8 passes of Equal Channel Angular Pressing (ECAP) via route Bc، by Electrochemical Impedance Spectroscopy (EIS) in 0.1 M NaCl solution. The resulting microstructure was observed by the Transmission Electron Microscope (TEM) and the Scanning Electron Microscope (SEM). Corrosion layer created after 7 days of immersion was observed by (SEM) in order to explain different evolution of the corrosion resistance after ECAP processing in both alloys. It was found that Al-rich Al11RE3 dispersed particles (present in both alloys) strongly influence the corrosion process and enhance the corrosion resistance. Ultra-fine grained structure was found to reduce the corrosion resistance in AE21. On the other hand، the microstructure of AE42 after ECAP and particularly the better distribution of the alloying elements in the matrix enhance the corrosion resistance when compared to the extruded materialKeywords Magnesium; Corrosion; Extrusion; ECAP; Grain refinement.،
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دوشنبه 10 اردیبهشت 1397 03:57 ب.ظ
Wow! This blog looks exactly like my old one! It's on a totally different
subject but it has pretty much the same layout and design. Superb choice of colors!
 
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