| Related citation: | Li Guo,Xiaolan Cai,Symbol,Lei Zhou,Cui Hu,Changjiang Yang,Ziyang Wang,Wenzhong Zhang,Gang Peng.Optimization of Process Parameters for in High-Energy Ball Milling of CNTs/Al2024 Composites Through Response Surface Methodology[J].Journal of Harbin Institute Of Technology(New Series),2016,23(1):53-59.DOI:10.11916/j.issn.1005-9113.2016.01.008. |
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| Optimization of Process Parameters for in High-Energy Ball Milling of CNTs/Al2024 Composites Through Response Surface Methodology |
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| Author Name | Affiliation | | Li Guo | Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650000,China | | Xiaolan Cai | Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650000,China | | Symbol | Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650000,China | | Lei Zhou | Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650000,China | | Cui Hu | Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650000,China | | Changjiang Yang | Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650000,China | | Ziyang Wang | Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650000,China | | Wenzhong Zhang | Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650000,China | | Gang Peng | Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming 650000,China |
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| Abstract: |
| The mathematical models are developed to evaluate the ultimate tensile strength(UTS) and hardness of CNTs/Al2024 composites fabricated by high-energy ball milling. The effects of the preparation variables which are milling time, rotational speed, mass fraction of CNTs and ball to powder ratio on UST and hardness of CNTs/Al2024 composites are investigated. Based on the central composite design(CCD), a quadratic model is developed to correlate the fabrication variables to the UST and hardness. From the analysis of variance (ANOVA), the most influential factor on each experimental design response is identified. The optimum conditions for preparing CNTs/Al2024 composites are found as follows: 1.53 h milling time, 900 r/min rotational speed, mass fraction of CNTs 2.87% and Ball to powder ratio 25∶1. The predicted maximum UST and hardness are 273.30 MPa and 261.36 HV, respectively. And the experimental values are 283.25 MPa and 256.8 HV, respectively. It is indicated that the predicted UST and hardness after process optimization are found to agree satisfactory with the experimental values. |
| Key words: high-energy ball milling CNTs/Al2024 Central composite design Optimization |
| DOI：10.11916/j.issn.1005-9113.2016.01.008 |
| Clc Number:TB331 |
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