We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Phase Transformation and Recovery Stress of Ni47Ti44Nb9 Alloy During Constrained Heating and Cooling.
- Authors
Fan, Q. C.; Sun, M. Y.; Wang, Y. Y.; Sun, K. H.; Cao, X. D.; Peng, H. B.; Huang, S. K.; Zhang, Y. H.; Wen, Y. H.
- Abstract
The phase transformation and recovery stress of pre-deformed Ni47Ti44Nb9 alloy are systematically investigated during constrained heating, cooling and thermal cycling. Recovery stress is determined by a phase transformation, thermal expansion, and contraction. Reverse martensitic transformation occurs during constrained heating and then results in a sharp increase in the recovery stress. Meanwhile, the wide phase transformation hysteresis shrinks during thermal cycling. A few martensitic transformations gradually occur across a wide temperature range during constrained cooling, resulting in a negative decreasing stage or a wide plateau of recovery stress. When cooled further to a critical value of 20 °C, the recovery stress and temperature follow the Clausius–Clapeyron equation, and large amounts of martensitic transformations appear, resulting in the sharp decrease of the recovery stress.
- Subjects
MARTENSITIC transformations; THERMOCYCLING; CLAUSIUS-Clapeyron relation; ALLOYS; THERMAL expansion
- Publication
Metallurgical & Materials Transactions. Part A, 2020, Vol 51, Issue 1, p390
- ISSN
1073-5623
- Publication type
Article
- DOI
10.1007/s11661-019-05533-1