کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7857211 | 1508903 | 2018 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhanced micro-hardness and wear resistance of Al-15Si/TiC fabricated by selective laser melting
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
بیومتریال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
High relative density (>98%) Al-15Si alloy samples were fabricated by selective laser melting (SLM) with laser re-melting process. The micro-hardness and wear resistance of Al-15Si alloy samples were investigated in this study. The addition of 5â¯wt% TiC improved the micro-hardness of SLM-produced Al-15Si alloy, which had a remarkable micro-hardness of 172.8â¯Hv. After the heat treatment (annealing or quenching), the hardness of all tested samples decreased significantly, while the Al-15Si/TiC composites with the laser re-melting kept the higher hardness values (145 Hv). This sample presented the lower coefficient of friction (0.42) and wear rate (2.75 à 10-5 mm3 N-1 m-1) than other conditions. Based on the results, the addition of 5â¯wt% TiC with laser re-melting in SLM process, together with annealing treatment afterwards, was a feasible approach to obtain a high micro-hardness and good wear resistance of Al-15Si alloys.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Communications - Volume 10, December 2018, Pages 64-67
Journal: Composites Communications - Volume 10, December 2018, Pages 64-67
نویسندگان
Yan Zhou, Longchen Duan, Shifeng Wen, Qingsong Wei, Yusheng Shi,