Effects of conform continuous extrusion and heat treatment on the microstructure and mechanical properties of Al-13Si-7.5Cu-1Mg alloy

Gao-yong Lin; Xin Tan; Di Feng; Jing-li Wang; Yu-xia Lei

doi:10.1007/s12613-019-1815-8

Volume 26 Issue 8

Aug. 2019

Turn off MathJax

Article Contents

Abstract

References

International Journal of Minerals, Metallurgy and Materials > 2019 > 26(8): 1013-1019. > DOI: 10.1007/s12613-019-1815-8

Gao-yong Lin, Xin Tan, Di Feng, Jing-li Wang, and Yu-xia Lei, Effects of conform continuous extrusion and heat treatment on the microstructure and mechanical properties of Al-13Si-7.5Cu-1Mg alloy, Int. J. Miner. Metall. Mater., 26(2019), No. 8, pp.1013-1019. https://dx.doi.org/10.1007/s12613-019-1815-8

Cite this article as:

PDF (5259 KB)

Research Article

Effects of conform continuous extrusion and heat treatment on the microstructure and mechanical properties of Al-13Si-7.5Cu-1Mg alloy

Gao-yong Lin^1,2), ,,
Xin Tan^1,2),
Di Feng³⁾,
Jing-li Wang^1,2) and
Yu-xia Lei^1,2)

Author Affilications

School of Materials Science and Engineering, Central South University, Changsha 410083, China
Key Lab of Nonferrous Materials, Ministry of Education, Central South University, Changsha 410083, China
Department of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China

Funds:

This study was financially supported by the National Natural Science Foundation of China (No. 51274245).

Received: 16 September 2018; Revised: 15 November 2018; Accepted: 19 November 2018;

Graphical Abstract

Abstract

Abstract

The effects of conform continuous extrusion and subsequent heat treatment on the mechanical and wear-resistance properties of high-alloying Al-13Si-7.5Cu-1Mg alloy were investigated. The microstructures of alloys before and after conform processing and aging were compared by transmission electron microscopy and scanning electron microscopy, respectively. The results reveal that the primary phases were broken and refined by intense shear deformation during conform processing. After the conform-prepared Al-13Si-7.5Cu-1Mg alloy was subjected to solid-solution treatment at 494℃ for 1.5 h and aging at 180℃ for 4 h, its hardness improved from HBS 115.8 to HBS 152.5 and its ultimate tensile strength increased from 112.6 to 486.8 MPa. Its wear resistance was also enhanced. The factors leading to the enhanced strength, hardness, and wear resistance of the alloy were discussed in detail.
- Al-13Si-7.5Cu-1Mg alloy,
- conform continuous extrusion,
- heat treatment,
- wear resistance

FullText(HTML)

References (23)

References

F.T. Xu, Y. Xu, and G. Li, The mechanism of PEO process on Al-Si alloys with the bulk primary silicon, Appl. Surf. Sci., 255(2009), No. 23, p. 9531.

M. Zamani and S. Seifeddine, Determination of optimum Sr level for eutectic Si modification in Al-Si cast alloys using thermal analysis and tensile properties, Int. J. Metalcast., 10(2016), No. 4, p. 457.

C.M. Cepeda-Jiménez, A Orozco-Caballero, J.M. García-Infanta, A.P. Zhilyaev, O.A. Ruano, and F Carrenoa, Assessment of homogeneity of the shear-strain pattern in Al-7wt%Si casting alloy processed by high-pressure torsion, Mater. Sci. Eng. A, 597(2014), p. 102.

Z. Li, A.M. Samuel, F.H. Samuel, C. Ravindran, S. Valtierra, and H.W. Doty, Parameters controlling the performance of AA319-type alloys:Part I. Tensile properties, Mater. Sci. Eng. A, 367(2004), No. 1-2, p. 96.

K.Z. He, F.X. Yu, D.Z. Zhao, and L. Zuo, Characterization of precipitates in a hot-deformed hypereutectic Al-Si alloy, J. Alloys Compd., 539(2012), p. 74.

L Zuo and F.X. Yu, DC Casting, Deformation and Strengthening of Al-Si Alloys, Mater. Sci. Forum, 706-709(2012), p. 186.

H.B. Chen and B. Yang, Effect of heat treatment on microstructures and mechanical properties of a bulk nanostructured Al-Zn-Mg-Cu alloy, Int. J. Miner. Metall. Mater., 16(2009), No. 16, p. 672.

C. Xu, S. Schroeder, P.B. Berbon, and T.G. Langdon, Principles of ECAP-Conform as a continuous process for achieving grain refinement:Application to an aluminum alloy, Acta Mater., 58(2010), No. 4, p. 1379.

M. Murashkin, A. Medvedev, V. Kazykhanov, A. Krokhin, G. Raab, N. Enikeev, and R.Z. Valive, Enhanced mechanical properties and electrical conductivity in ultrafine-grained Al 6101 alloy processed via ECAP-Conform, Metals, 5(2015), No. 4, p. 2148.

H. Zhang, F.L. Jiang, X.Y. Shang, and L.X. Li, Flow stress and microstructural evolution of the horizontal continuous casting Al-0.96Mn-0.38Si-0.18Fe alloy during hot compression, Mater. Sci. Eng. A, 571(2013), p. 25.

X.Y. Zhang, H. Zhang, X.X. Kong, and D.F. Fu, Microstructure and properties of Al-0.70Fe-0.24Cu alloy conductor prepared by horizontal continuous casting and subsequent continuous extrusion forming, Trans. Nonferrous. Met. Soc. China, 25(2015), No. 6, p. 1763.

J.A. Pardoe, Conform continuous extrusion process-its contribution to energy conservation, Met. Technol., 11(1984), No. 1, p. 358.

L. Lasa and J.M. Rodriguez-Ibabe, Evolution of the main intermetallic phases in Al-Si-Cu-Mg casting alloys during solution treatment, J. Mater. Sci., 39(2004), No. 4, p. 1343.

E. Sjölander and S. Seifeddine, The heat treatment of Al-Si-Cu-Mg casting alloys, J. Mater. Process. Technol., 210(2010), p. 1249.

M.A. Moustafa, F.H. Samuel, H.W. Doty, and S. Valtierra, Effect of Mg and Cu additions on the microstructural characteristics and tensile properties of Sr-modified Al-Si eutectic alloys, Int. J. Cast Met. Res., 14(2002), No. 4, p. 235.

N. Raghukiran and R. Kumar. Effect of scandium addition on the microstructure, mechanical and wear properties of the spray formed hypereutectic aluminum-silicon alloys, Mater.Sci. Eng. A, 641(2015). p. 138.

S.K. Chaudhury and D. Apelian, Fluidized bed heat treatment of cast Al-Si-Cu-Mg alloys, Metall. Mater. Trans. A, 37(2006), p. 2295.

N. Kang, P. Coddet, H.L. Liao, T. Baur, and C. Coddet, Wear behavior and microstructure of hypereutectic Al-Si alloys prepared by selective laser melting, Appl. Surf. Sci., 378(2016), p. 142.

R.X. Li, R.D. Li, Y.H. Zhao, L.Z. He, C.X. Li, H.R. Guan, and Z.Q. Hu, Age-hardening behavior of cast Al-Si base alloy, Mater. Lett., 58(2004), No. 15, p. 2096.

X. Pan, J.E. Morral, and H.D. Brody, Predicting the Q-phase in Al-Cu-Mg-Si alloys, J. Phase Equilib. Diffus., 31(2010), No. 2, p. 144.

D.J. Chakrabarti and D.E. Laughlin, Phase relations and precipitation in Al-Mg-Si alloys with Cu additions, Prog. Mater. Sci., 49(2004), No. 3-4, p. 389.

A.R. Farkoosh and M. Pekguleryuz, Enhanced mechanical properties of an Al-Si-Cu-Mg alloy at 300℃:Effects of Mg and the Q-precipitate phase, Mater. Sci. Eng. A, 621(2015), p. 277.

M. Gazizov and R. Kaibyshev, Effect of pre-straining on the aging behavior and mechanical properties of an Al-Cu-Mg-Ag alloy, Mater. Sci. Eng. A, 625(2015), p. 119.

Cited By

Cited by

Periodical cited type(5)

1.	Mo Zhou, Xinbing Yun, Hongwang Fu, et al. A Comparative Study on Flat and U-Shaped Copper Strips Produced by Continuous Extrusion. Materials, 2022, 15(13): 4405. DOI:10.3390/ma15134405
2.	X.F. Shen, Z.Y. Cheng, C.G. Wang, et al. Effect of heat treatments on the microstructure and mechanical properties of Al-Mg-Sc-Zr alloy fabricated by selective laser melting. Optics & Laser Technology, 2021, 143: 107312. DOI:10.1016/j.optlastec.2021.107312
3.	Tao Jiang, Chuang Yu, Boyue Xu, et al. A novel investigation on the influence of Cu–P modifier on the microstructure, mechanical performance, and melting process of Al–50Si alloys treated by overheating. Progress in Natural Science: Materials International, 2021, 31(3): 461. DOI:10.1016/j.pnsc.2021.04.003
4.	W. Cheng, C.Y. Liu, Z.J. Ge. Optimizing the mechanical properties of Al–Si alloys through friction stir processing and rolling. Materials Science and Engineering: A, 2021, 804: 140786. DOI:10.1016/j.msea.2021.140786
5.	Tai-qi Yin, Lang Chen, Yun Xue, et al. Electrochemical behavior and underpotential deposition of Sm on reactive electrodes (Al, Ni, Cu and Zn) in a LiCl-KCl melt. International Journal of Minerals, Metallurgy and Materials, 2020, 27(12): 1657. DOI:10.1007/s12613-020-2112-2