Effect of MWCNT reinforcement on the precipitation-hardening behavior of AA2219

Shijo Thomas; Umasankar V.

doi:10.1007/s12613-018-1546-2

Volume 25 Issue 1

Jan. 2018

Turn off MathJax

Article Contents

Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2018 > 25(1): 53-61

Shijo Thomasand Umasankar V., Effect of MWCNT reinforcement on the precipitation-hardening behavior of AA2219, Int. J. Miner. Metall. Mater., 25(2018), No. 1, pp. 53-61. https://doi.org/10.1007/s12613-018-1546-2

Cite this article as:

Shijo Thomasand Umasankar V., Effect of MWCNT reinforcement on the precipitation-hardening behavior of AA2219, Int. J. Miner. Metall. Mater., 25(2018), No. 1, pp. 53-61. https://doi.org/10.1007/s12613-018-1546-2

Citation:

PDF( 15879 KB)

Research Article

Effect of MWCNT reinforcement on the precipitation-hardening behavior of AA2219

Shijo Thomas and
Umasankar V.

+ Author Affiliations

Corresponding author:
Shijo Thomas E-mail: shijo.thomas3@gmail.com
Received: 11 April 2017; Revised: 6 July 2017; Accepted: 16 July 2017

Abstract

Abstract

Aluminum alloy matrix composites have found a predominant place in research, and their applications are explored in almost all industries. The aerospace industry has been using precipitation-hardenable alloys in structural applications. However, insufficient literature is available on the influence of multiwalled carbon nanotubes (MWCNTs) on precipitation-hardenable alloy composite materials; thus, this work was designed to elucidate the effect on MWCNT reinforcement on AA2219 with and without precipitation hardening. Reinforcement with MWCNTs has been reported to accelerate precipitation and to achieve greater hardness within a much shorter time. The addition of 0.75wt% MWCNTs resulted in maximal hardness at 90 min, which is approximately 27% of improvement over the maximum hardness achieved by the corresponding monolithic alloy after 10 h of aging. The sample reinforced with 0.75wt% MWCNTs showed an improvement of 82% in hardness by solutionizing and aging compared to that achieved by sintering.
- aluminum metal-matrix composites;
- multi walled carbon nanotubes (MWCNT);
- powder metallurgy;
- heat treatment;
- precipitation hardening

FullText(HTML)

Supplements(0)

References(20)

References

[1]	D.H. Nam, Y.K. Kim, S.I. Cha, and S.H. Hong, Effect of CNTs on precipitation hardening behavior of CNT/Al-Cu composites, Carbon, 50(2012), No. 13, p. 4809.
[2]	X. Meng, T. Liu, C.S. Shi, E.Z. Liu, C.N. He, and N.Q. Zhao, Synergistic effect of CNTs reinforcement and precipitation hardening in in-situ CNTs/Al-Cu composites, Mater. Sci. Eng. A, 633(2015), p. 103.
[3]	H.J. Choi, B.H. Min, J.H. Shin, and D.H. Bae, Strengthening in nano structured 2024 aluminum alloy and its composites containing carbon nanotubes, Composites Part A, 42(2011), No. 10, p. 1438.
[4]	N. Saheb, Sintering behavior of CNT reinforced Al6061 and Al2124 Nanocomposites, Adv. Mater. Sci. Eng., 2014(2014), p. 1.
[5]	A. Khalil, A.S. Hakeemand, and N. Saheb, Optimization of process parameters in spark plasma sintering Al6061and Al2124 aluminum alloys, Adv. Mater. Res., 328-330(2011), p.1517.
[6]	N. Saheb, Z. Iqbal, A. Khalil, A.S. Hakeem, N.A. Aqeeli, T. Laoui, A. Al-Qutub, and R. Kirchner, Spark plasma sintering of metals and metal matrix nanocomposites:a review, J. Nanomater., 2012(2012), art. No. 18.
[7]	Z.F. Liu, Z.H. Zhang, J.F. Lu, A.V. Korznikov, E. Korznikova, and F.C. Wang, Effect of sintering temperature on microstructures and mechanical properties of spark plasma sintered nanocrystalline aluminum, Mater. Des., 64(2014), p. 625.
[8]	G.A. Sweet, M. Brochu, R.L. Hexemer Jr., I.W. Donaldson, and D.P. Bishop, Microstructure and mechanical properties of air atomized aluminum powder consolidated via spark plasma sintering, Mater. Sci. Eng. A, 608(2014), p. 273.
[9]	S. Rudinsky, J.M. Aguirre, G. Sweet, J. Milligan, D.P. Bishop, and M. Brochu, Spark plasma sintering of an Al-based powder blend, Mater. Sci. Eng. A, 621(2015), p. 18.
[10]	S.R. Bakshi, D. Lahiri, and A. Agarwal, Carbon nanotubes reinforced metal matrix composites-a review, Int. Mater. Rev., 55(2010), No. 1, p. 41.
[11]	B. Chen, K. Kondoh, H. Imai, and J. Umeda, Effect of initial state on dispersion evolution of carbon nanotubes in aluminium matrix composites during a high-energy ball milling process, Powder Metall., 59(2016), No. 3, p. 216.
[12]	J.Z. Liao and M.J. Tan, Mixing of carbon nanotubes (CNTs) and aluminum powder for powder metallurgy use, Powder Technol., 208(2011), No. 1, p. 42.
[13]	A.M.K. Esawi, K. Morsi, A. Sayed, M. Taher, and S. Lanka, Effect of carbon nanotube (CNT) content on the mechanical properties of CNT-reinforced aluminium composites, Compos. Sci. Technol., 70(2010), No. 16, p. 2237.
[14]	V. Giridhar, R.S. Arunraj, and R. Dhisondhar, Ultrasonic nano-dispersion technique of aluminium alloy and carbon nano-tubes (CNT) for automotive parts applications, Int. J. Eng. Tech. Res., 1(2013), No. 7, p. 54.
[15]	American Society for Metals, Metals Handbook. Vol. 2:Heat Treating Cleaning and Finishing, ASTM International, 1964.
[16]	M.H. Jacobs, TALAT Lecture:Precipitation hardening, European Aluminium Association, Brussels, 1999, p. 1.
[17]	N. Saheb, A. Khalil, A.S. Hakeem, T. Laoui, N. Al-Aqeeli, and A.M. Al-Qutub, Age hardening behavior of carbon nanotube reinforced aluminum nanocomposites, J. Nano Res., 21(2013), p. 29.
[18]	V.M.J. Sharma, K. Sree Kumar, B. Nageswara Rao, and S.D. Pathak, Studies on the work hardening behavior of AA2219 under different aging treatments, Metall. Mater. Trans. A, 40(2009), p. 3186.
[19]	A. Agarwal, S.R. Bakshi, and D. Lahiri, Carbon Nanotubes:Reinforced Metal Matrix Composites, CRC Press of Taylor & Francis Group, 2010, p. 325.
[20]	I.J. Polmear, Aluminium alloys-a century of age hardening, Mater. Forum, 28(2004), p. 1.