Investigation of wear properties of Al6061 alloy and composite containing CNT produced by mechanical alloying and hot pressing process

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OMIDI MAHDI; nategh saeid; Etemad Arash; ROSTAMI MOHAMMAD REZA; shafiei mohammad esmaeil

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Journal: JOURNAL OF NEW MATERIALS Year:2018 | Volume:9 | Issue:1 (33) Page(s): 53-65

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Title

Investigation of wear properties of Al6061 alloy and composite containing CNT produced by mechanical alloying and hot pressing process

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Keywords

Al6061 alloyQ1

compositeQ2

CNTQ3

hot pressedQ2

wearQ2

Abstract

In this study, nanostructured aluminum alloy and aluminum base composites containing different amounts of carbon nanotubes (0. 5-1. 5wt. %) were produced by a combination of mechanical alloying and hot press. Experimental results have shown that the addition of carbon nanotubes up to 1wt. % slightly increase the relative density of aluminum-carbon nanotube composites. However, the hardness of composite increased significantly with increasing carbon nanotubes, Because of the placement of carbon nanotubes in the free space between the powder particles and the filling of the micro-cavities. The hardness value from 93. 3 HV to the coarse-grained aluminum reached 219. 18 HV. The higher amounts of carbon nanotubes reduced the composite hardness and relative density. The wear behavior of aluminum composites containing carbon nanotubes was investigated by pin on disk method. The results showed that the addition of carbon nanotubes up to 1wt. % into the composite reduced the friction coefficientand weight loss. The amount of friction coefficient of the coarse-grained aluminum in the range (0. 33-0. 91) and for the specimen containing 1 wt%, the steady state friction coefficient changed in the range (0. 42-0. 45). Meanwhile, increasing the amount of it, due to the agglomerate phenomenon, increases the friction coefficientand weight loss of the aluminum composite. The results of wear tests for coarse-grained, nanostructured and aluminum composite containing 1 wt. % carbon nanotubes showed that the wear mechanism was adhesive, delamination and abrasive, respectively.

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References

THE EFFECT OF B4C PARTICLE CONTENTS ON HARDNESS AND WEAR RESISTANCE OF AL-SIC-B4C COMPOSITE FORMATTED ON AA332 VIA GTAW PROCESS

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APA: Copy

OMIDI, MAHDI, nategh, saeid, Etemad, Arash, ROSTAMI, MOHAMMAD REZA, & shafiei, mohammad esmaeil. (2018). Investigation of wear properties of Al6061 alloy and composite containing CNT produced by mechanical alloying and hot pressing process. JOURNAL OF NEW MATERIALS, 9(1 (33) ), 53-65. SID. https://sid.ir/paper/169785/en

Vancouver: Copy

OMIDI MAHDI, nategh saeid, Etemad Arash, ROSTAMI MOHAMMAD REZA, shafiei mohammad esmaeil. Investigation of wear properties of Al6061 alloy and composite containing CNT produced by mechanical alloying and hot pressing process. JOURNAL OF NEW MATERIALS[Internet]. 2018;9(1 (33) ):53-65. Available from: https://sid.ir/paper/169785/en

IEEE: Copy

MAHDI OMIDI, saeid nategh, Arash Etemad, MOHAMMAD REZA ROSTAMI, and mohammad esmaeil shafiei, “Investigation of wear properties of Al6061 alloy and composite containing CNT produced by mechanical alloying and hot pressing process,” JOURNAL OF NEW MATERIALS, vol. 9, no. 1 (33) , pp. 53–65, 2018, [Online]. Available: https://sid.ir/paper/169785/en

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