| Autor: |
Guang-li Bi, Xiao-mei Luo, Jing Jiang |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| Předmět: |
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| Zdroj: |
China Foundry, Vol 13, Iss 1, Pp 54-58 (2016) |
| Druh dokumentu: |
article |
| ISSN: |
1672-6421 |
| DOI: |
10.1007/s41230-016-5062-6 |
| Popis: |
This paper presents some research information on the effects of Zn, Cu and Ni on the microstructure and mechanical properties of as-cast Mg-2Dy (at.%) alloys. The Mg-2Dy alloy is composed of α-Mg and Mg24Dy5 phases. With the addition of 0.5at.%Zn, 0.5at.%Cu and 0.5at.%Ni, respectively, besides α-Mg, the long period stacking order (LPSO) phases containing Zn, Cu, and Ni precipitated in the α-Mg interdentritic boundary. The addition of Ni effectively refined the dendrite arm spacing. The as-cast Mg-2Dy-0.5Ni alloy exhibited the best tensile strengths and elongation. The better mechanical properties were mainly attributed to small secondry dendrite arm spacing (SDAS) and high volume fraction of LPSO phases. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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