کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1576745 1514785 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Processing map of Al2O3 particulate reinforced Al alloy matrix composites
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Processing map of Al2O3 particulate reinforced Al alloy matrix composites
چکیده انگلیسی

The flow stress behavior of the nanometric Al2O3 particulate reinforced Al alloy matrix composites were investigated in the temperature range from 360 to 480 °C, with strain rates of 0.001–1 s−1 on Gleeble-1500 machine. The results show that the flow stress increases with increasing strain rate and decreasing temperature. The flow stress of this deformed composites shows a dynamic recovery character in the temperature range from 360 to 440 °C and in the strain rate range of 0.001–0.01 s−1, while that deformed at 480 °C shows dynamic recrystallization character. The processing map at the strain of 0.4 is obtained and exhibits three safe deformation domains: 360–400 °C at 0.001–0.01 s−1, 400–440 °C at 0.001–1 s−1, and 440–480 °C at 0.001–0.01 s−1. According to the processing map and microstructure observation, the optimum hot-working parameters are determined to be 480 °C/0.001 s−1.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 558, 15 December 2012, Pages 112–118
نویسندگان
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