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Improvement of microstructural, mechanical and tribological characteristics of A413 cast Al alloys using friction stir processing

Materials Science & Engineering A 558 (2012) 502–509 • 2012
العودة
معلومات البحث
المؤلفون T.S. Mahmoudn, S.S. Mohamed
الكلمات المفتاحية Not Available
المجلة العلمية Materials Science & Engineering A 558 (2012) 502–509
الناشر Not Available
المجلد A558
العدد Not Available
الصفحات Not Available
publication.type International
رابط البحث Not Available
المواد المرفقة Not Available
الملخص
In the present investigation, the effect of the friction stir processing (FSP) on the microstructural,
mechanical and tribological characteristics of as-cast A413 aluminum alloy was studied. The influence
of the tool rotational and traverse speeds on such characteristics was evaluated. The results revealed
that FSP has significantly improved the microstructure of the A413 Al alloy by eliminating structural
defects such as porosity and Si segregation. The size of the Si particulates as well as the a-Al grains
increases with increasing tool rotational speed and/or decreasing the tool traverse speed. The FSPed
zones exhibited better mechanical properties as well as dry sliding wear resistance than the as-cast
base alloy.