Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1503163 | Scripta Materialia | 2007 | 4 Pages |
Abstract
Neutron diffraction was used to study the structure of ternary NiAl + M (M = Ni, Fe, Co) alloys. The experiment confirmed the predictions by first-principle calculations on site preference by solute atoms. Moreover, a universal structural transformation was observed below 20 K in alloys where Al is partially replaced by M. The extra peaks at low-temperatures do not match those from known martensite phases, but are well indexed by a cubic structure. A possible mechanism for the low-temperature phase is discussed.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
L. Yang, X.-L. Wang, C.T. Liu, J.A. Fernandez-Baca, C.L. Fu, J.W. Richardson, D. Shi,