کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5454584 | 1514356 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructures and tensile properties of nano-sized SiCp/Al-Cu composites fabricated by semisolid stirring assisted with hot extrusion
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Al-Cu matrix composites containing nano-sized SiCp were successfully prepared by dispersing nano-sized SiCp/Al master alloy into the molten Al-Cu alloy with combined semi-solid stir casting and hot extrusion processes. Microstructures of nano-sized SiCp/Al-Cu composites and their tensile properties were investigated. Results show that the α-Al dendrites became finer and better formed and nano-sized SiCp was formed in the α-Al grains. With nano-sized SiCp adding to the Al-Cu matrix, the tensile strength of the described composites increased remarkably especially under the temperature of 453 K, while their plasticity were still high. Nano-sized SiCp particles had been uniformly dispersed in the Al alloy, yielding composites with high strength at elevated temperatures. The strengthening mechanisms of nano-sized SiCp were also discussed. This will raise the probability of using Al matrix composites as lightweight materials for structural applications at elevated temperatures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Characterization - Volume 131, September 2017, Pages 195-200
Journal: Materials Characterization - Volume 131, September 2017, Pages 195-200
نویسندگان
Lei Wang, Feng Qiu, Qian Zou, De-Long Yang, Jian Tang, Yu-Yang Gao, Qiang Li, Xue Han, Shi-Li Shu, Fang Chang, Qi-Chuan Jiang,