Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-27T23:39:13.033Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of solution treatment on microstructure and mechanical properties of cast Al–3Li–1.5Cu–0.2Zr alloy

Published online by Cambridge University Press:  28 March 2016

Yu Peng ,
Antao Chen ,
Liang Zhang ,
Wencai Liu  and
Guohua Wu
Yu Peng
Affiliation:
National Engineering Research Center of Light Alloys Net Forming and State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University, 200240 Shanghai, People's Republic of China
Antao Chen
Affiliation:
National Engineering Research Center of Light Alloys Net Forming and State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University, 200240 Shanghai, People's Republic of China
Liang Zhang*
Affiliation:
National Engineering Research Center of Light Alloys Net Forming and State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University, 200240 Shanghai, People's Republic of China
Wencai Liu
Affiliation:
National Engineering Research Center of Light Alloys Net Forming and State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University, 200240 Shanghai, People's Republic of China
Guohua Wu
Affiliation:
National Engineering Research Center of Light Alloys Net Forming and State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University, 200240 Shanghai, People's Republic of China
*
a)Address all correspondence to this author. e-mail: liangzhang08@sjtu.edu.cn
Get access

Abstract

The effect of solution treatment (ST) on the microstructure and mechanical properties of cast Al–3Li–1.5Cu–0.2Zr alloy was investigated. Results showed that the volume fraction of secondary phases (Al2Cu, Al3Li) decreased obviously after ST. It was found that the strengthening of Al–3Li–1.5Cu–0.2Zr alloy was a balance of the precipitation strengthening, residual phase strengthening and fine grain strengthening. The residual phase strengthening and fine grain strengthening decreased with increasing the solution temperature and time, while precipitation strengthening increased. After ST at 560 °C for 40 h, the elongation of Al–3Li–1.5Cu–0.2Zr alloy reaches the highest value of 22.1%. In addition, the tensile properties are up to the highest values, ultimate tensile strength of 359 MPa and elongation of 3.5% after optimal ST at 560 °C for 40 h followed by aging treatment.

Keywords

AlLisecond phases
Type
Articles
Information
Journal of Materials Research , Volume 31 , Issue 8 , 28 April 2016 , pp. 1124 - 1132
Copyright
Copyright © Materials Research Society 2016 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Tolga, D. and Soutis, C.: Recent developments in advanced aircraft aluminium alloys. Mater. Des. 56, 862–871 (2014).Google Scholar
Rajendrana, V., Kumarana, S.M., Jayakumarb, T., Palanichamyb, P., Shankarb, P., and Rajb, B.: Microstructure and ultrasonic behaviour on thermal heat-treated Al–Li 8090 alloy. J. Alloys Compd. 478, 147–153 (2009).CrossRefGoogle Scholar
Gomiero, P., Brechet, Y., and Louchet, F.: Microstructure and mechanical properties of a 2091 Al Li alloy—II. Mechanical properties: Yield stress and work hardening. Acta Mater. 40.4, 857–861 (1992).CrossRefGoogle Scholar
Zhang, S.F., Zeng, W.D., Yang, W.H., Shi, C.L., and Wang, H.J.: Ageing response of a Al–Cu–Li 2198 alloy. Mater. Des. 63, 368–374 (2014).CrossRefGoogle Scholar
Shen, B., Deng, L., and Wang, X.: A new dynamic recrystallisation model of an extruded Al–Cu–Li alloy during high-temperature deformation. Mater. Sci. Eng., A 625, 288–295 (2015).CrossRefGoogle Scholar
Tsivoulas, D. and Prangnell, P.B.: The effect of Mn and Zr dispersoid-forming additions on recrystallization resistance in Al–Cu–Li AA2198 sheet. Acta Mater. 77, 1–16 (2014).CrossRefGoogle Scholar
Li, H.Y., Kang, W., and Lu, X.C.: Effect of age-forming on microstructure, mechanical and corrosion properties of a novel Al–Li alloy. J. Alloys Compd. 640, 210–218 (2015).CrossRefGoogle Scholar
Zhang, X., Yang, W., and Xiao, R.: Microstructure and mechanical properties of laser beam welded Al–Li alloy 2060 with Al–Mg filler wire. Mater. Des. 88, 446–450 (2015).CrossRefGoogle Scholar
Drits, M.E., Kadaner, E.S., Turkina, N.I., and Fedotov, S.G.: The mechanical properties of aluminum–lithium alloy [English translation]. Splavy Tsvetn. Met. 14 (1972).Google Scholar
Wang, C., Min, G., Lu, Q., and Lu, Z.: Solidification structure and mechanical properties of Al–Li–Cu–Zr cast alloys. Int. J. Cast Met. Res. 17.5, 264–266 (2004).CrossRefGoogle Scholar
Nikitin, S.L., Osintsev, O.E., and Betsofen, S.Y.: Effect of heat treatment conditions on the structure and mechanical properties of a cast Al–Li–Cu aluminum alloy. Russ. Metall. 11, 1041–1045 (2010).CrossRefGoogle Scholar
Mrówka-Nowotnik, G. and Sieniawski, J.: Influence of heat treatment on the microstructure and mechanical properties of 6005 and 6082 aluminium alloys. J. Mater. Process. Technol. 162, 367–372 (2005).CrossRefGoogle Scholar
Yoshimura, R., Konno, T.J., Abe, E., and Hiraga, K.: Transmission electron microscopy study of the early stage of precipitates in aged Al–Li–Cu alloys. Acta Mater. 51.10, 2891–2903 (2003).CrossRefGoogle Scholar
Elgallad, E.M., Shen, P., Zhang, Z., and Chen, X.G.: Effects of heat treatment on the microstructure and mechanical properties of AA2618 DC cast alloy. Mater. Des. 61, 133–140 (2014).CrossRefGoogle Scholar
Zhang, F., Shen, J., Yan, X.D., Sun, J.L., Sun, X.L., and Yang, Y.: Homogenization heat treatment of 2099 Al–Li alloy. Rare Met. 33.1, 28–36 (2014).CrossRefGoogle Scholar
Kim, J.M., Seong, K.D., Jun, J.H., Shin, K., and Kim, K.T.: Microstructural characteristics and mechanical properties of Al–2.5wt%Li–1.2wt%Cu–xMg. J. Alloys Compd. 434, 324–326 (2007).CrossRefGoogle Scholar
Min, J., Zheng, Z., and Gong, Z.: Microstructure evolution of the 1469 Al–Cu–Li–Sc alloy during homogenization. J. Alloys Compd. 614, 131–139 (2014).Google Scholar
Lombardi, A., Ravindran, C., and MacKay, R.: Optimization of the solution heat treatment process to improve mechanical properties of 319 Al alloy engine blocks using the billet casting method. Mater. Sci. Eng., A 633, 125–135 (2015).CrossRefGoogle Scholar
Han, N.M., Zhang, X.M., Liu, S.D., He, D.G., and Zhang, R.: Effect of solution treatment on the strength and fracture toughness of aluminum alloy 7050. J. Alloys Compd. 509.10, 4138–4145 (2011).CrossRefGoogle Scholar
Yu, C., Yin, D., Zheng, F., and Yu, X.: Effects of solution treatment on mechanical properties and microstructures of Al–Li–Cu–Mg–Ag alloy. J. Cent. South Univ. 20, 2083–2089 (2013).CrossRefGoogle Scholar
Li, H., Tang, Y., Zeng, Z., Zheng, Z., and Zheng, F.: Effect of ageing time on strength and microstructures of an Al–Cu–Li–Zn–Mg–Mn–Zr alloy. Mater. Sci. Eng., A 498.1, 314–320 (2008).CrossRefGoogle Scholar
Il'in, A.A., Nikitin, S.L., Osintsev, O.E., and Borisov, Y.V.: Effect of alloying elements on the structure and properties of Al–Li–Cu cast alloys. Russ. Metall. 4, 338–344 (2009).CrossRefGoogle Scholar
Liu, Q., Chen, C.Z., and Cui, J.Z.: Effect of copper content on mechanical properties and fracture behaviors of Al–Li–Cu alloy. Metall. Mater. Trans. A 36.6, 1389–1394 (2005).CrossRefGoogle Scholar
Radmilovic, V., Tolley, A., Marquis, E.A., Rossell, M.D., and Lee, Z.: Monodisperse Al3(LiScZr) core/shell precipitates in Al alloys. Scr. Mater. 58.7, 529–532 (2008).CrossRefGoogle Scholar
Lin, Y., Zheng, Z.Q., and Li, S.C.: Effect of solution treatment on microstructures and mechanical properties of 2099 Al–Li alloy. Arch. Civil Mech. Eng. 14.1, 61–71 (2014).CrossRefGoogle Scholar
Sjölander, E. and Seifeddine, S.: Optimisation of solution treatment of cast Al–Si–Cu alloys. Mater. Des. 31, S44–S49 (2010).CrossRefGoogle Scholar
Li, H.Y., Su, X.J., Yin, H., and Huang, D.S.: Microstructural evolution during homogenization of Al–Cu–Li–Mn–Zr–Ti alloy. Trans. Nonferrous Met. Soc. China 23.9, 2543–2550 (2013).CrossRefGoogle Scholar