| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1500682 | Scripta Materialia | 2009 | 4 Pages |
Abstract
The elastic strain fields surrounding Ni4Ti3 precipitates affect the transformation behavior of Ni-rich NiTi shape memory alloys. We present first-principles calculations of the Ni4Ti3 elastic constants that allow for the first time to characterize the elastic anisotropy, the direction-dependent Young’s modulus and the macroscopic elastic moduli. A comparison of the direction-dependent moduli of Ni4Ti3 and the austenitic NiTi matrix fully rationalizes the experimentally observed shapes of the precipitates.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Martin F.-X. Wagner, Wolfgang Windl,