✦ LIBER ✦

SANS-study of the early stage α-precipitation in dilute CuCo alloys

✍ Scribed by W. Wagner; W. Petry

Publisher: Elsevier Science
Year: 1989
Tongue: English
Weight: 241 KB
Volume: 156-157
Category: Article
ISSN: 0921-4526
DOI: 10.1016/0921-4526(89)90588-7

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✦ Synopsis

Small angle neutron scattering on QCo alloys containing 0.5 and 0.8 at.% Co gives evidence for precursor stages of decomposition prior to the a-phase precipitation, characterized as compositional fluctuations, small in amplitude but large in size as compared to the subsequently forming a-precipitates. The fluctuations obviously give rise to a nucleation rate significantly higher than predicted by classical nucleation theory.

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