IMR OpenIR
Effects of Sc and Zr microalloying on the microstructure and mechanical properties of high Cu content 7xxx Al alloy
Liu, Chong-yu; Teng, Guang-biao; Ma, Zong-yi; Wei, Li-li; Zhang, Bing; Chen, Yong
2019-12-01
Source PublicationINTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
ISSN1674-4799
Volume26Issue:12Pages:1559-1569
AbstractThe effects of Sc and Zr microalloying on the microstructure and mechanical properties of a 7xxx Al alloy with high Cu content (7055) during casting, deformation, and heat treatment were investigated. The addition of Sc and Zr not only refined the grains but also transformed the theta-phase into the W-phase in the 7055 alloy. Minor Sc and Zr additions enhanced the hardness and yield strength of the 7055-T6 alloy by strengthening the grain boundaries and Al-3(Sc,Zr) precipitates. However, a further increase in the Sc and Zr fractions did not refine the grains but instead resulted in the formation of the large-sized W-phase and primary coarse Al-3(Sc,Zr) phase and subsequently deteriorated the mechanical properties of the alloys. The 7055 alloy with 0.25Sc addition exhibited the best mechanical property among the prepared alloys.
Keywordaluminum alloys microstructural evolution mechanical property grain refinement
Indexed BySCI
Language英语
WOS IDWOS:000501072600009
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80579
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Liu, Chong-yu,Teng, Guang-biao,Ma, Zong-yi,et al. Effects of Sc and Zr microalloying on the microstructure and mechanical properties of high Cu content 7xxx Al alloy[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2019,26(12):1559-1569.
APA Liu, Chong-yu,Teng, Guang-biao,Ma, Zong-yi,Wei, Li-li,Zhang, Bing,&Chen, Yong.(2019).Effects of Sc and Zr microalloying on the microstructure and mechanical properties of high Cu content 7xxx Al alloy.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,26(12),1559-1569.
MLA Liu, Chong-yu,et al."Effects of Sc and Zr microalloying on the microstructure and mechanical properties of high Cu content 7xxx Al alloy".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 26.12(2019):1559-1569.
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