کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7995177 | 1516162 | 2018 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of laser surface melting on bulk metallic glass: Investigation of microstructure, microhardness, friction and wear properties
ترجمه فارسی عنوان
اثر تابش سطح لیزر بر روی شیشه فلزی بزرگ: بررسی ریزساختار، میکروکنترل، اصطکاک و خواص پوششی
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
شیشه ای فلزی، پردازش لیزری، ریز ساختار، پراش اشعه ایکس، اصطکاک و پوشیدن، میکروسکوپ الکترونی اسکن،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
چکیده انگلیسی
10â¯Ãâ¯3â¯Ãâ¯80â¯mm3 fully dense crack-free plate-like Cu46Zr42Al7Y5 bulk metallic glass (BMG) samples were successfully prepared by a copper mold casting method in an argon atmosphere and subjected to surface laser surface melting (LSM) under different laser frequencies. X-ray diffraction patterns showed that the degree of crystallization is determined by the crystalline phase in the heat-affected zone and the welding fusion zone; the heat-affected zone is easier to crystallize than the welding fusion zone at the same laser frequency. The microhardness of the welding fusion zones reached a maximum of 508.2â¯Hv at a laser frequency of 16â¯Hz. However, the microhardness of the heat-affected zone declined drastically with increasing laser frequency. In addition, the average frictional coefficient dramatically increased and then decreased with an increase in sliding velocity, and the values reached a maximum at the sliding velocity of 500â¯mm/min. The property of wear resistance was moderately improved at laser frequencies of 12, 14, and 16â¯Hz. Moreover, the grinding trace widths slightly increased with increasing sliding velocity. The friction and wear mechanisms and morphological representations were completely different under different sliding velocities.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 732, 25 January 2018, Pages 792-798
Journal: Journal of Alloys and Compounds - Volume 732, 25 January 2018, Pages 792-798
نویسندگان
Wenwu Zhang, Pingjun Tao, Qi Tu, Dongyang Li, Yuanzheng Yang,