TY - JOUR
T1 - Metastable phase formation in eutectic solidification of highly undercooled Fe83B17 alloy melt
AU - Yang, Changlin
AU - Yang, Gencang
AU - Liu, Feng
AU - Chen, Yuzeng
AU - Liu, N.
AU - Chen, D.
AU - Zhou, Yaohe
PY - 2006/3/1
Y1 - 2006/3/1
N2 - Adopting molten glass denucleating combined with thermal cycling, high undercooling up to 460 K was achieved in the bulk Fe83B17 alloy melts. Results from XRD, SAED and DTA show that, for undercoolings beyond the critical value 386 K, a metastable phase Fe3B remains in the as-solidified structure at room temperature. The effect of undercooling on the observed phenomenon was interpreted in terms of a time-dependent nucleation theory, i.e., the competitive nucleation between the metastable phase, Fe 3B and the stable phase, Fe2B.
AB - Adopting molten glass denucleating combined with thermal cycling, high undercooling up to 460 K was achieved in the bulk Fe83B17 alloy melts. Results from XRD, SAED and DTA show that, for undercoolings beyond the critical value 386 K, a metastable phase Fe3B remains in the as-solidified structure at room temperature. The effect of undercooling on the observed phenomenon was interpreted in terms of a time-dependent nucleation theory, i.e., the competitive nucleation between the metastable phase, Fe 3B and the stable phase, Fe2B.
KW - Competitive nucleation
KW - Fe-B eutectic alloy
KW - Metastable phase
KW - Undercooling
UR - http://www.scopus.com/inward/record.url?scp=31544433940&partnerID=8YFLogxK
U2 - 10.1061/40830(188)136
DO - 10.1061/40830(188)136
M3 - 文章
AN - SCOPUS:31544433940
SN - 0921-4526
VL - 373
SP - 136
EP - 141
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
IS - 1
ER -