| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7912975 | Scripta Materialia | 2015 | 4 Pages |
Abstract
We show that the cubic-monoclinic martensitic transformation (B2-B19â²) in Ni-rich Ni-Ti alloys is strongly affected by room temperature exposure after quenching from 1270Â K, presumably due to the initial stage of precipitation: transformation temperatures strongly decrease, the hysteresis increases and in the Ni50.8Ti49.2 alloy the transformation gets arrested. The suppression of the B2-B19â² transformation is not preceded by the cubic-trigonal (R-phase) transition, indicating that nm-size precipitates or their nuclei do not serve as nucleation sites for the R-phase.
Related Topics
Physical Sciences and Engineering
Materials Science
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Authors
S. Kustov, B. Mas, D. Salas, E. Cesari, S. Raufov, V. Nikolaev, J. Van Humbeeck,