Effects of Minor Sc and Zr on the Microstructure and Mechanical Properties of Al-4.6Cu-0.3Mg-0.6Ag Alloys
Source abstract
Abstract
Effects of minor Sc and Zr on the microstructure and mechanical properties of Al-4.6Cu-0.3Mg-0.6Ag alloys were investigated. The results indicate that Sc- and Zr-containing alloy as well as Sc-containing alloy could produce grain refinement effects. Both the alloys had lower tensile strength and hardness compared to Sc- and Zr-free alloy, mainly because solution heat treatment could not dissolve W (Al8.5-4Cu6.6-4Sc) phase, lowering the Cu concentration in the Al matrix. Insufficient Cu solute atoms in the Al matrix could not produce a large amount of Ω and θ′ strengthening precipitates to enhance the tensile strength and hardness following T7 heat treatment. However, the T7-treated Sc-containing alloy and the T7-treated Sc- and Zr-containing alloy have similar mechanical properties. Zirconium can partially replace expensive Sc to produce grain refinement effects on Al-Cu-Mg-Ag alloys.
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Research context
OpenAlex topics: Aluminum Alloy Microstructure Properties · Aluminum Alloys Composites Properties · Microstructure and mechanical properties
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References (25)
Show source-provided references
1. J.R. Davis, Aluminum and Aluminum Alloys: ASM Specialty Handbook, ASM International, Materials Park, OH, 1993, p 88-220.
2. A. Grag, Y.C. Chang, and J.M. Howe, Precipitation of the Ω Phase in an Al-4.0Cu-0.5Mg Alloy, Scr. Metall. Mater., 1990, 24, p 677–68010.1016/0956-716X(90)90222-3 ↗
3. B.C. Muddle and I.J. Polmear, The Precipitate Ω Phase in Al-Cu-Mg-Ag Alloys, Acta Metall., 1989, 37, p 777–78910.1016/0001-6160(89)90005-9 ↗
4. Y.X. Gu, Z.Y. Liu, D. Yu, B.B. Liu, M. Lin, and S.M. Zeng, Growth of X Plates and Its Effect on Mechanical Properties in Al-Cu-Mg-Ag Alloy with High Content of Silver, J. Mater. Eng. Perform., 2013, 22, p 1708–171510.1007/s11665-013-0472-8 ↗
5. K.M. Knowles and W.M. Stobbs, The Structure of 111 Age-Hardening Precipitates in Al-Cu-Mg-Ag Alloys, Acta Crystallogr. B, 1988, 44, p 207–22710.1107/S0108768187012308 ↗
6. L. Bakavos, P.B. Prangnell, B. Besb, and F. Eberl, The Effect of Silver on Microstructural Evolution in two 2xxx Series Al-Alloys with a High Cu:Mg Ratio During Ageing to a T8 Temper, Mater. Sci. Eng. A, 2008, 491, p 214–22310.1016/j.msea.2008.03.014 ↗
7. U. Prisco, A. Squillace, A. Astarita, and C. Velotti, Influence of Welding Parameters and Post-Weld Aging on Tensile Properties and Fracture Location of AA2139-T351 Friction-Stir-Welded Joints, Mater. Res., 2013, 16, p 1106–111210.1590/S1516-14392013005000099 ↗
8. C. Velotti, A. Astarita, P. Buonadonna, G. Dionoro, A. Langella, V. Paradiso, U. Prisco, F. Scherillo, A. Squillace, and A. Tronci, FSW of AA 2139 Plates: Influence of the Temper State on the Mechanical Properties, Key Eng. Mater., 2013, 554–557, p 1065–107410.4028/www.scientific.net/KEM.554-557.1065 ↗
9. C.H. Chang, S.L. Lee, J.C. Lin, M.S. Yeh, and R.R. Jeng, Effect of Ag Content and Heat Treatment on the Stress Corrosion Cracking of Al-4.6Cu-0.3Mg Alloy, Mater. Chem. Phys., 2005, 91, p 454–46210.1016/j.matchemphys.2004.12.009 ↗
10. K. Hono, T. Sakurai, and I.J. Polmear, Pre-Precipitate Clustering in an Al-Cu-Mg-Ag Alloy, Scr. Metall. Mater., 1994, 30, p 695–70010.1016/0956-716X(94)90184-8 ↗
11. V.G. Davydov, T.D. Tostove, V.V. Zakharov, Y.A. Filatov, and V.I. Yelagin, Scientific Principle of Making an Alloying Addition of Scandium to Aluminium Alloys, Mater. Sci. Eng. A, 2000, 280, p 30–3610.1016/S0921-5093(99)00652-8 ↗
12. D.N. Seilman, E.A. Marquis, and D.C. Dunand, Precipitation Strengthening at Ambient and Elevated Teperature of Heat-Treatable Al(Sc) Alloys, Acta Mater., 2002, 50, p 021–4035
13. M.L. Kharakterova, Phase Composition of Al-Cu-Sc Alloys at Temperatures of 450 and 500 °C, Izvestiya Akademii Nauk SSSR. Metally, 1991, 4, p 195–199
14. V.V. Zakharov and T.D. Rostova, On the Possibility of Scandium Alloying of Copper-Containing Aluminum Alloys, Met. Sci. Heat Treat., 1995, 37, p 65–6910.1007/BF01157047 ↗
15. A.F. Norman, K. Hyde, F. Costello, S. Thompson, S. Birley, and P.B. Prangnell, Examination of the Effect of Sc on 2000 and 7000 Series Aluminium Alloy Castings: For Improvements in Fusion Welding, Mater. Sci. Eng. A, 2003, 354, p 188–19810.1016/S0921-5093(02)00942-5 ↗
16. M.L. Kharakterova, D.G. Eskin, and L.S. Toropova, On the Possibility of Scandium Alloying of Copper-Containing Aluminum Alloys, Acta Metall. Mater., 1994, 42, p 2285–229010.1016/0956-7151(94)90307-7 ↗
17. K. Yu, W. Li, S. Li, and J. Zhao, Mechanical Properties and Microstructure of Aluminum Alloy 2618 with Al3(Sc, Zr) Phases, Mater. Sci. Eng. A, 2004, 368, p 88–9310.1016/j.msea.2003.09.092 ↗
18. B. Forbord, H. Hallem, J. Royset, and K. Mathinsen, Thermal Stability of Al3(Scx, Zr1-x)-Dispersoids in Extruded Aluminium Alloys, Mater. Sci. Eng. A, 2008, 475, p 241–24810.1016/j.msea.2007.04.054 ↗
19. K.E. Knipling, R.A. Karnesky, C.P. Lee, D.C. Dunand, and D.N. Seidman, Precipitation Evolution in Al-0.1Sc, Al-0.1Zr and Al-0.1 Sc-0.1 Zr (at.%) Alloys During Isochronal Aging, Acta Mater., 2010, 58, p 5184–519510.1016/j.actamat.2010.05.054 ↗
20. A.K. Mukhopadhyay, Compositional Characterization of Cu-Rich Phase Particles Present in As-Cast Al-Cu-Mg-(Li) Alloys Containing Ag, Scr. Mater., 1999, 41, p 667–67210.1016/S1359-6462(99)00110-4 ↗
21. Y. Harada and D.C. Dunand, Microstructure of Al3Sc with Ternary Transition-Metal Additions, Mater. Sci. Eng. A, 2002, 329–331, p 686–69510.1016/S0921-5093(01)01608-2 ↗
22. M. Gazizova, V. Teleshovb, V. Zakharovb, and R. Kaibysheva, Solidification Behaviour and the Effects of Homogenisation on the Structure of an Al-Cu-Mg-Ag-Sc Alloy, J. Alloys Compd., 2011, 509, p 9497–950710.1016/j.jallcom.2011.07.050 ↗
23. V.I. Elagin, V.V. Zakharov, and T.D. Rostova, Scandium-Alloyed Aluminum Alloys, Met. Sci. Heat Treat., 1992, 1, p 37–4510.1007/BF00768707 ↗
24. C.H. Chang, S.L. Lee, T.Y. Hsu, and J.C. Lin, Impact of Cu/Mg Ratio on Thermal Stability of Hot Extrusion of Al4.6 Pct Cu-Mg-Ag Alloys, Metall. Mater. Trans. A, 2007, 38, p 2832–284210.1007/s11661-007-9332-1 ↗
25. S.F. Fang, M.P. Wang, and M. Song, An Approach for the Aging Process Optimization of Al-Zn-Mg-Cu Series Alloys, Mater. Des., 2009, 30, p 2460–246710.1016/j.matdes.2008.10.008 ↗