کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1572911 1000714 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microstructure and tensile properties of thixoformed A356 alloy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Microstructure and tensile properties of thixoformed A356 alloy
چکیده انگلیسی

In the research work presented here, mechanical properties of a thixoformed A356 alloy were measured and compared with the mechanical properties of rheocast and gravity-cast alloy with the same composition. In the thixoforming process, a 60% solid fraction rheocast alloy was reheated to 600 °C or 610 °C, held about 10 min, and then reduced by 30% or 50% reduction of cross section. Microstructural and mechanical properties of the alloys were investigated. The results obtained show that the tensile strength, yield strength and elongation-to-failure of the alloy thixoformed at 600 °C was greater than that thixoformed at 610 °C. Moreover, the tensile strength, yield strength and elongation-to-failure of the thixoformed alloy were higher than those of the rheocast and gravity-cast samples. The improvement in the mechanical properties due to thixoforming is attributed to morphological aspects of the silicon phase, as well as to the non-dendritic structure produced.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Characterization - Volume 59, Issue 3, March 2008, Pages 223–228
نویسندگان
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