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| Keywords | |
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Immiscible alloys |
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Directional solidification |
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Melt superheat |
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Solidification interface |
| Authors | |
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HE Jie- |
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XING Cheng-Yao |
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LI Hai-Quan |
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DIAO Lei |
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DIAO Jiu-Zhou |
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| PubMed | |
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Article by He,J. |
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Article by Xing,C.Y |
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Article by Li,H.Q |
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Article by Diao,l |
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Article by Diao,J.Z. |
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Article by , |
Microstructure Formation in Al-Bi-Co Immiscible Alloys Directionally Solidified with Different Melt Superheat Temperatures
Jie He, Chengyao Xing, Jiuzhou Zhao, Lei Zhao
Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
The directional solidification has been carried out for the Al-4Bi-2.5Co (wt pct) alloys with different melt superheat temperatures. The microstructure characterization and the quantitative metallographic analysis have been performed. The results indicated that the Bi-rich sphere size and cellular spacing decrease with increasing melt superheat temperature. The interaction between the advancing solidification interface and the Bi-rich spheres with different sizes was analyzed. The effect of the melt superheat treatment on microstructure evolution was discussed for the immiscible alloys. The microstructure development in ternary Al-Bi-Co alloys directionally solidified with different melt superheat temperatures was clarified.
the Knowledge Innovation Program of the Chinese Academy of Sciences, the National Natural Science Foundation of China (No. 50704032)
the Liaoning Province Natural Science Foundation of China (No. 20081009)
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