کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1579852 1001233 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Damping capacities and tensile properties of magnesium matrix composites reinforced by graphite particles
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Damping capacities and tensile properties of magnesium matrix composites reinforced by graphite particles
چکیده انگلیسی

Magnesium matrix composites reinforced by graphite particles were fabricated using stir casting with graphite particle size of 50 μm and graphite particle volume fractions of 5, 10, 15 and 20%, respectively. The as-cast composites were extruded at 300 °C with an extrusion ratio of 12:1. The experimental results reveal that the graphite particles play an important role on the tensile properties and damping capacities of the composites. The strength increases with the addition of 5% graphite particles, but decreases with further addition of graphite particles. The strain amplitude independent damping increases significantly as the graphite particle volume fraction increases from 0 to 10%, but almost keeps constant when the volume fraction exceeds 10%. Two damping peaks are found at 150 and 350 °C, respectively. The damping peak around 150 °C is considered to be caused by movable boundary slip, and the damping peak around 350 °C is inferred to be recrystallization peak.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 527, Issue 26, 15 October 2010, Pages 6816–6821
نویسندگان
, , , , , , ,