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Materials Research Innovations Volume 17, 2013 - Issue 3
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Original Articles

Preparation of bilayer hollow billets by horizontal electromagnetic continuous casting

N. LiuSchool of Material Science and EngneeringDalian University of Technology, Dalian116024, ChinaCorrespondence[email protected]
,
J. C. JieSchool of Material Science and EngneeringDalian University of Technology, Dalian116024, China
,
X. Y. SongSchool of Material Science and EngneeringDalian University of Technology, Dalian116024, China
,
P. C. ZhangSchool of Material Science and EngneeringDalian University of Technology, Dalian116024, China
&
T. J. LiSchool of Material Science and EngneeringDalian University of Technology, Dalian116024, China
Pages 207-211 | Received 09 May 2012, Accepted 10 Oct 2012, Published online: 12 Nov 2013
 
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Abstract

The possibility for producing a bimetallic hollow billet by means of direct connection of liquid phases was investigated. Bilayer hollow billets with diameter of 83 mm and external thickness of 6 mm were fabricated by horizontal electromagnetic continuous casting. Surface features and microstructures of ingots were observed and the effect of rotating magnetic field on grain size was studied. The results show that when the casting speed is 120 mm min−1 and input current intensity is 100 A, bilayer hollow billets with well surface features combine the external and internal alloys by metallurgical bonding, and the defect free bonding interface can be seen clearly.

Acknowledgements

The authors wish to express their appreciation to the support of the National Natural Science Foundation of China (no. 51074031).

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