Influence of Multiwalled Carbon Nanotubes on the Aging Behavior of AA 6061 Alloy Matrix Nanocomposites

被引：0
作者：
H. R. Aniruddha Ram
Praveennath G. Koppad
K. T. Kashyap
机构：
[1] PES Institute of Technology,Department of Mechanical Engineering, Center for Nanocomposites Research
[2] Jyothy Institute of Technology,Department of Mechanical Engineering
[3] Rapsri Engineering Products Company Ltd.,Research and Development
来源：
Transactions of the Indian Institute of Metals | 2014年 / 67卷
关键词：
Carbon nanotubes; Nanocomposites; Aging kinetics;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The effect of multiwalled carbon nanotubes (MWCNT) with varying volume fractions on aging behavior of aluminium alloy 6061 matrix nanocomposites (MWCNTs/AA 6061) has been studied. The aging behavior of the developed nanocomposites has been evaluated at a temperature of 170 °C for different time intervals by means of Vickers hardness. Increase in the peak hardness by 32 and 27 % was observed by the addition of 2 wt% copper coated and uncoated MWCNTs for the aging time of 40 and 43 min as compared to base alloy with the peak hardness of 107 for the aging time of 55 min. The dramatic increase in the peak hardness of the nanocomposite within a short span of aging time is due to the generation of dislocations due to the difference in the co-efficient of thermal expansion between the AA6061 matrix and MWCNTs.
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页码：325 / 329
页数：4
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