Study the mechanical properties of a novel light Mg-Zn-Gd-Y-Nd alloy designed for aerospace applications
عنوان مقاله: Study the mechanical properties of a novel light Mg-Zn-Gd-Y-Nd alloy designed for aerospace applications
شناسه ملی مقاله: MECHAERO04_093
منتشر شده در چهارمین کنفرانس ملی مهندسی مکانیک و هوافضا در سال 1398
شناسه ملی مقاله: MECHAERO04_093
منتشر شده در چهارمین کنفرانس ملی مهندسی مکانیک و هوافضا در سال 1398
مشخصات نویسندگان مقاله:
Z Abbasi - Department of Materials Science and Engineering, School of Engineering, Shiraz, Iran
R Ebrahimi - Department of Materials Science and Engineering, School of Engineering, Shiraz, Iran
خلاصه مقاله:
Z Abbasi - Department of Materials Science and Engineering, School of Engineering, Shiraz, Iran
R Ebrahimi - Department of Materials Science and Engineering, School of Engineering, Shiraz, Iran
Magnesium and magnesium based alloys has the potential to function as an industrial material in the aerospace technology via alloying by rare earth elements (REs). The effect of alloying elements (Zn and REs: Gd, Y and Nd) on microstructure, texture and hardness of Mg has been here investigated by means of optical microscopy (OM), hardness test and X-ray measurements. Microstructural observation and texture investigation indicate that dynamic recrystallization (DRX) dominates the as-extruded microstructures while static recrystallization (SRX) and grain growth decreased the hardness during annealing of extruded samples. More importantly, the texture was weekend after extrusion while the annealing procedure after extrusion increased the texture intensity. It is concluded that addition of alloying elements strengthens magnesium by grain refinement and solid solution strengthening effect of alloying elements. Moreover, it is observed that extrusion gives rise to a more refined grain structure and higher hardness value together with a weaker texture which convey that the as extruded alloy has more enhanced properties rather than the extruded-annealed one.
کلمات کلیدی: agnesium based alloy, aerospace application, mechanical properties, texture.
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/924747/