Abstract
Second-phase Al3Sc particles play an important role in several aspects of material performance. These include increasing strength, stabilizing microstructure and increasing recrystallization temperature and thermal stability. The present work was conducted to investigate the stability of Al3Sc particles in a severely deformed Al-0.25 wt% Sc alloy at room temperature in comparison to that of Al2Cu precipitates in an Al-Cu alloy . Microstructural examination and hardness tests showed that the Al3Sc particles were coarsening resistant with substantially higher stability than Al2Cu and the hardness of the Al-0.25Sc alloy remained almost constant while an apparent hardness drop was observed for the Al-Cu alloy .
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References
Rokhlin LL, Dobatkina T, Kharakterova ML (1997) Structure of the phase equilibrium diagrams of aluminum alloys with scandium. Powder Metal Met Ceram. 36: 128–132.
Davydov VG, Rostova TD, Zakharov VV, FilatovYA, Yelagin VI (2000) Scientific principles of making an alloying addition of scandium to aluminium alloys. Mater Sci Eng. A280:30–36.
Yelagin VI, Zakharov VV, Rostova DT (1991) Features of Sc-bearing aluminium alloy recrystallization. In: Problems of Light Alloy Metallurgy. VILS, Moscow, p 114–129.
Huang Y, Robson JD, Prangnell PB (2010) The formation of nano grain structures and accelerated room temperature theta precipitation in a severely deformed Al-4 wt%Cu alloy. Acta Mater. 58:1643–1657.
Zuo J, Hou L, Shi J, et al. (2017) Effect of deformation induced precipitation on dynamic aging process and improvement of mechanical/corrosion properties AA7055 aluminum alloy. J All Comp.708:1131–1140.
Huang Y, Prangnell PB (2008) Effect of cryogenic temperatures and change in deformation mode on the limiting grain size in a severely deformed dilute Al alloy. Acta Mater. 56:1619–1631.
Apps PJ, Berta M, Prangnell PB (2005) The Effect of Dispersoids on the Grain Refinement Mechanisms During Deformation of Aluminium Alloys to Ultra-High Strains. Acta Mater. 53:499–511.
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© 2020 The Minerals, Metals & Materials Society
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Huang, Y. (2020). Coarsening-Resistance of a Severely Deformed Al-0.2 wt% Sc Alloy. In: Tomsett, A. (eds) Light Metals 2020. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-36408-3_39
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DOI: https://doi.org/10.1007/978-3-030-36408-3_39
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