Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1501342 | Scripta Materialia | 2010 | 4 Pages |
Abstract
The cubic-to-rhombohedral (C-R) phase transition in an AuCd shape memory alloy was investigated by in situ high-energy X-ray diffraction. We present the first direct experimental evidence of two-length-scale phase transition kinetics in this alloy system. It was further found that aging in the R-phase leads to two-way memory “loss”, characterized by the reselection of new variants. We attributed this two-way memory “loss” to the internal stresses caused by the defects formed in the off-equilibrium state of the studied AuCd system.
Keywords
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Y.D. Wang, Y. Ren, E.W. Huang, G. Wang, Z.H. Nie, L. Zuo, P.K. Liaw,