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Phase seeding in the solidification of an undercooled melt

✍ Scribed by D.M. Herlach; B. Feuerbacher; E. Schleip

Publisher: Elsevier Science
Year: 1991
Tongue: English
Weight: 330 KB
Volume: 133
Category: Article
ISSN: 0921-5093
DOI: 10.1016/0921-5093(91)90188-s

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✦ Synopsis

Controlled phase selection has been demonstrated in the crystallization of a melt from deep undercooling. In the Fe-Ni alloy system the metastable b.c.c, phase has been solidified by a seeding technique for nickel content up to 30%, using a trigger made of FeMo alloy. The stable f.c.c, phase is shown to be formed spontaneously in primary solidification, while for small nickel concentrations a two-step process prevails, consisting of primary b.

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