In:
High Temperature Materials and Processes, Walter de Gruyter GmbH, Vol. 36, No. 4 ( 2017-04-1), p. 339-346
Abstract:
The effects of rotational electromagnetic stirring (R-EMS) on dendrite growth characteristics and segregation control of bearing steel billet were investigated in continuous casting. The results show that applying R-EMS can promote columnar-equiaxed transition, increase the region of the equiaxed grain from 5 % to 45 %, decrease the secondary dendrite arm spacing (SDAS), and reduce the segregation of both carbon and sulfur. Meanwhile, the fragments of dendrite arms induced by R-EMS are observed. The length of the dendrite fragmentation is approximately 1.5 mm, 7–10 times the SDAS. Some fragments can partially remelt to become effective nuclei, and some fragments survive the solidification process.
Type of Medium:
Online Resource
ISSN:
0334-6455
,
2191-0324
DOI:
10.1515/htmp-2016-0128
Language:
Unknown
Publisher:
Walter de Gruyter GmbH
Publication Date:
2017
detail.hit.zdb_id:
2602423-8
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