Effect of process parameters on the hardness and wear properties of friction stir processed Al-Fe-Ni alloy
Publish Year: 1400
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
MEMCONF05_005
تاریخ نمایه سازی: 27 مرداد 1400
Abstract:
The effect of friction stir processing (FSP) was investigated on the microstructure and pin-on-disk dry sliding wear resistance of cast Al-۷Fe-۵Ni alloy. The Vickers micro-hardness was measured at the applied load of ۱۰۰۰ g for an indentation time of ۱۵ s. The wear tests were conducted at the applied pressures of ۱, ۲, and ۳ MPa, sliding distance of ۱۰۰۰ m, at room temperature. The microstructure of the samples was also investigated using an optical microscope (OM) and a scanning electron microscope (SEM) equipped with an energy dispersive spectroscopy (EDS). The results showed that FSP refined the microstructure and eliminated the casting-related defects. FSP also encouraged the formation of ultrafine equiaxed grains. The optimum results were obtained at the rotation speed of ۱۲۵۰ rpm and traverse speed of ۲۵ mm/min. The wear results also showed that applying FSP reduced the wearrate by ۲۱% and ۱۴۰% under the applied pressures of ۱ and ۳ MPa, respectively.
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Authors
M Fekri Soustani
Department of Materials Science and Engineering Imam Khomeini International University
R Taghiabadi
Department of Materials Science and Engineering Imam Khomeini International University
M Jafarzadegan
Department of Materials Science and Engineering Imam Khomeini International University
I Ansarian
Department of Materials Science and Engineering Imam Khomeini International University