| Effect of Cd addition on the aging process of Al-Si-Cu-Mg cast alloy | |
| Li, RX; Li, RD; Guan, HG; Hu, ZQ | |
| Corresponding Author | Li, RX(runxiali@hotmail.com) |
| 2004-08-01 | |
| Source Publication | ACTA METALLURGICA SINICA
 |
| ISSN | 0412-1961 |
| Volume | 40Issue:8Pages:867-872 |
| Abstract | The 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. |
| Keyword | Al-Si-Cu-Mg cast alloy Cd age-hardening |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000223695400016 |
| Publisher | SCIENCE CHINA PRESS |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/119612 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Li, RX |
| Affiliation | 1.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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