Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1601050 | Intermetallics | 2010 | 4 Pages |
Abstract
The critical cooling rate and microstructure evolution were experimentally studied at cooling rates between 0.85 and 15.34Â K/s by a Bridgman technique in Vit-1 (Zr41.2Ti13.8Cu12.5Ni10Be22.5). Our results show that the sample solidified at the rate above 10.03Â K/s was fully amorphous whereas the samples solidified between 1.70 and 10.03Â K/s were partially amorphous with crystalline phases, and samples solidified below 1.70Â K/s were essentially crystalline. As the cooling rate decreased from 15.34Â K/s to 1.82Â K/s, the values of Tg and Tx were around 628Â K and 702Â K, respectively, but the heat of crystallization (ÎHx) decreased with decreasing cooling rate.
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Authors
J.L. Cheng, G. Chen, P. Gao, C.T. Liu, Y. Li,