کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7974382 | 1514632 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Particle size effect on the interfacial properties of SiC particle-reinforced Al-Cu-Mg composites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In particle-reinforced metal matrix composites, geometrically necessary dislocations (GNDs) form on the matrix side close to the particle/matrix interface. The mechanical behavior of the bulk composite is affected by the nature of the region populated with GNDs. In this study, the hardness evolution across the reinforcement/matrix interface in 15Â vol% SiC particle (SiCp)-reinforced 2009 Al composites with varying particle sizes were studied by nanoindentation with high spatial resolution. The hardness data were then correlated with the microstructures of the composites as well as their bulk tensile properties. It was found that decrease in particle size was associated with a reduction in the punched zone width and an enhancement in the strength of the bulk composite. These findings were interpreted by the effect of GNDs on the ageing kinetics of the matrix, and the improved load-transfer capability through the reinforcement/matrix interface in composites reinforced by smaller particles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 711, 10 January 2018, Pages 643-649
Journal: Materials Science and Engineering: A - Volume 711, 10 January 2018, Pages 643-649
نویسندگان
Xiaolei Guo, Qiang Guo, Junhui Nie, Zhiying Liu, Zhiqiang Li, Genlian Fan, Ding-Bang Xiong, Yishi Su, Jianzhong Fan, Di Zhang,