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Effect of Cd addition on the aging process of Al-Si-Cu-Mg cast alloy
Li, RX; Li, RD; Guan, HG; Hu, ZQ
Corresponding AuthorLi, RX(runxiali@hotmail.com)
2004-08-01
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume40Issue:8Pages:867-872
AbstractThe addition of Cd promotes the age-hardening process of Al-Si-Cu-Mg alloy, increases the peak hardness and reduces the time to reach peak hardness. The UTS increases 20% when 0.27% Cd is added in, on the contrary, strength decreases if the content of Cd exceeds 0.27%. The results of SEM, DSC and TEM reveal that trace addition Cd stimulates nucleation of metastable phases and accelerates the following aging process of alloys. At the same time, some larger Cd-rich particles and stable phases formed in the matrix, which strengthen alloys as second-phase. In the combined action of those two kinds of precipitates, the peak strength of alloy improves remarkably. However, when the content of Cd exceeds 0.27% some Cd-rich phases and pure Cd particles form, and those particles soften grain boundary and result in the decrease of alloy strength.
KeywordAl-Si-Cu-Mg cast alloy Cd age-hardening
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000223695400016
PublisherSCIENCE CHINA PRESS
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/119612
Collection中国科学院金属研究所
Corresponding AuthorLi, RX
Affiliation1.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110023, Peoples R China
2.Shenyang Inst Aeronaut Engn, Dept Mat Sci, Shenyang 110034, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Li, RX,Li, RD,Guan, HG,et al. Effect of Cd addition on the aging process of Al-Si-Cu-Mg cast alloy[J]. ACTA METALLURGICA SINICA,2004,40(8):867-872.
APA Li, RX,Li, RD,Guan, HG,&Hu, ZQ.(2004).Effect of Cd addition on the aging process of Al-Si-Cu-Mg cast alloy.ACTA METALLURGICA SINICA,40(8),867-872.
MLA Li, RX,et al."Effect of Cd addition on the aging process of Al-Si-Cu-Mg cast alloy".ACTA METALLURGICA SINICA 40.8(2004):867-872.
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