The Formation of Al-(Fe,Mo)-Si Dispersoid Phase During Solution Heat Treatment of an Al-Si-Cu-Mg-(Mo) Casting Alloy and its Effect on Strength and Creep Resistance

Canadian Institute of Mining, Metallurgy and Petroleum
A. R. Farkoosh X. Grant Chen M. Pekguleryuz
Organization:
Canadian Institute of Mining, Metallurgy and Petroleum
Pages:
9
File Size:
3486 KB
Publication Date:
Jan 1, 2014

Abstract

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Nano-scale Al-(Fe,Mo)-Si dispersoids form during solution treatment in grain interiors (intradendritic regions) of cast Al7Si0.5Cu0.3Mg alloyed with 0.3Mo (wt.%). Unlike the Q-Al5Cu2Mg8Si6 and ?-Al2Cu age-hardening precipitates which coarsen resulting in loss of strength in Al-Si-Cu-Mg alloys, these Mo-containing dispersoids are thermally stable and retain their strengthening effect at elevated temperatures. Consequently, the age-hardened Al7Si0.5Cu0.3Mg0.3Mo (wt.%) exhibits high strength and creep resistance at 300 °C.
Citation

APA: A. R. Farkoosh X. Grant Chen M. Pekguleryuz  (2014)  The Formation of Al-(Fe,Mo)-Si Dispersoid Phase During Solution Heat Treatment of an Al-Si-Cu-Mg-(Mo) Casting Alloy and its Effect on Strength and Creep Resistance

MLA: A. R. Farkoosh X. Grant Chen M. Pekguleryuz The Formation of Al-(Fe,Mo)-Si Dispersoid Phase During Solution Heat Treatment of an Al-Si-Cu-Mg-(Mo) Casting Alloy and its Effect on Strength and Creep Resistance. Canadian Institute of Mining, Metallurgy and Petroleum, 2014.

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