The effect of copper content on mechanical properties of Al3Si-Al2O3/SiC hybrid composite

Tarumanagara International Conference on the Applications of Technology and Engineering

工业技术（总论）

Rahmalina, Dwi^1 ; Sukma, Hendri^1 ; Kamanda, Novan^1 ; Aldiyansyah, M Luthfi^1

Department of Mechanical Engineering, Faculty of Engineering, Universitas Pancasila, Srengseng Sawah, Jagakarsa, Jakarta

12640, Indonesia^1

关键词: Aluminum composites;    Aluminum matrix;    Automotive component;    Ceramic particulates;    Dendritic structures;    Effect of coppers;    Hybrid composites;    Reinforced aluminum composites;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/508/1/012074/pdf
DOI  :  10.1088/1757-899X/508/1/012074

学科分类：工业工程学

来源: IOP

【 摘 要 】

Ceramic particulate-reinforced aluminum composite-have been developed to improve mechanical properties of automotive component, particularly disc brake. One main factor to achieve good mechanical properties is improving the properties of aluminum matrix of composite by alloying with copper. This research studied the mechanical properties of hybrid aluminum composites with varied Cu, which reinforced with Al2O3/SiC particle. The aluminum matrix of Al-3Si ingot is melted inside the crucible furnace at 850 °C, stirred with 7500 rpm and then squeeze casted into preheated metal mold. The test results and metallography observations show that the highest percentage of Cu of 1.6 wt.% changed the dendritic structure to globular, also increased the mechanical properties of hybrid composite with the impact toughness of 0.240 Joule/mm2 and the hardness value of 31.16 HRB.