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Effects of Sc and Zr microalloying on the microstructure and mechanical properties of high Cu content 7xxx Al alloy
Liu, Chong-yu1; Teng, Guang-biao1,2; Ma, Zong-yi3; Wei, Li-li1; Zhang, Bing4; Chen, Yong1
Corresponding AuthorLiu, Chong-yu(lcy261@glut.edu.cn) ; Ma, Zong-yi(zyma@imr.ac.cn)
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
Funding OrganizationNational Natural Science Foundation of China ; Guangxi Natural Science Foundation ; Guangxi Science and Technology Major Project
DOI10.1007/s12613-019-1840-7
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51601045] ; Guangxi Natural Science Foundation[2016GXNSFDA380028] ; Guangxi Science and Technology Major Project[GKAA17202007]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS IDWOS:000501072600009
PublisherSPRINGER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/136019
Collection中国科学院金属研究所
Corresponding AuthorLiu, Chong-yu; Ma, Zong-yi
Affiliation1.Guilin Univ Technol, Coll Mat Sci & Engn, Guilin 541004, Peoples R China
2.Guangdong JMA Aluminum Profile Factory Grp Co Ltd, Foshan 528200, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
4.Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Hebei, Peoples R China
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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