کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5144693 1496867 2017 25 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ultrasonic assisted hot metal powder compaction
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Ultrasonic assisted hot metal powder compaction
چکیده انگلیسی
Hot pressing of metal powders is used in production of parts with similar properties to wrought materials. During hot pressing processes, particle rearrangement, plastic deformation, creep, and diffusion are of the most effective powder densification mechanisms. Applying ultrasonic vibration is thought to result in great rates of densification and therefore higher efficiency of the process is expected. This paper deals with the effects of power ultrasonic on the densification of AA1100 aluminum powder under constant applied stress. The effects of particle size and process temperature on the densification behavior are discussed. The results show that applying ultrasonic vibration leads to an improved homogeneity and a higher relative density. Also, it is found that the effect of ultrasonic vibration is greater for finer particles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasonics Sonochemistry - Volume 38, September 2017, Pages 704-710
نویسندگان
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