Abstract
The metastable β phase undergoes two order–disorder transitions during quenching from high temperature in Cu-based shape memory alloys. First, it undergoes a B2 ordering at nearest neighbors and then a second one at next-nearest neighbors that has not been clearly established. Neutron powder diffraction measurements have been performed at room temperature in a fully ordered alloy (Cu-27.4 Al-3.6 Ni at. %). Rietveld analysis allows to conclude that a L21 order at next-nearest neighbors is present in the ordered phase. The site occupancy of the different positions has been determined.
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Dates
Type | When |
---|---|
Created | 22 years, 11 months ago (Aug. 30, 2002, 1:02 p.m.) |
Deposited | 1 year, 6 months ago (Feb. 3, 2024, 5:58 p.m.) |
Indexed | 1 year ago (Aug. 5, 2024, 5:10 a.m.) |
Issued | 22 years, 11 months ago (Sept. 2, 2002) |
Published | 22 years, 11 months ago (Sept. 2, 2002) |
Published Print | 22 years, 11 months ago (Sept. 2, 2002) |
@article{P_rez_Landaz_bal_2002, title={Determination of the next-nearest neighbor order in β phase in Cu-Al-Ni shape memory alloys}, volume={81}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.1504883}, DOI={10.1063/1.1504883}, number={10}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Pérez-Landazábal, J. I. and Recarte, V. and Pérez-Sáez, R. B. and Nó, M. L. and Campo, J. and San Juan, J.}, year={2002}, month=sep, pages={1794–1796} }