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Journal of Ultrafine Grained and Nanostructured Materials، جلد ۵۳، شماره ۲، صفحات ۱۷۷-۱۸۲
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Microstructural refinement and tensile properties enhancement of the Mg-9Al-1Zn alloy after hot extrusion |
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| چکیده انگلیسی مقاله |
The impact of hot extrusion process on the grain refinement and tensile properties for the rare earth elements (RE) and strontium (Sr)-containing Mg-9Al-1Zn alloys was studied. Based on the microstructural analysis, the grain size values reduced after the hot extrusion process, compared to the cast alloys. Moreover, the tensile properties of the extruded alloys were remarkably higher than the cast alloys. These extraordinary results were related to the grain refinement by the dynamic recrystallization phenomenon, and fragmentation and distribution of the intermetallics. Moreover, the RE/Sr additions improved the grain size reduction, owing to the presence of fragmented Al11RE3 intermetallics. |
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| کلیدواژه‌های انگلیسی مقاله |
Mg alloys, Hot extrusion, Mechanical properties, Microstructure, Grain refinement |
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| نویسندگان مقاله |
Aria Afsharnaderi |
School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran.
Mehrab Lotfpour |
School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran.
Mehdi Malekan |
School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran.
Massud Emamy |
School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran.
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| نشانی اینترنتی |
https://jufgnsm.ut.ac.ir/article_79220_f4dcb504c9e0c96e0e9816f31c48e697.pdf |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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