Abstract
The effects of crystallographic orientation and temperature on pseudoelasticity and recoverable strain levels under constant stress are revealed for the Co-31at.%Ni-27at.%Al alloy single crystals under compression. The single crystals demonstrate a perfect pseudoelasticity at temperatures as high as 170 °C, recoverable transformation strains of 4% along the [100] orientation and 2.5% along the [123] orientation, small stress hysteresis (<40 MPa) and high strength level against dislocation formation.
Original language | English |
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Pages (from-to) | 261-266 |
Number of pages | 6 |
Journal | Scripta Materialia |
Volume | 51 |
Issue number | 3 |
DOIs | |
State | Published - Aug 2004 |
Bibliographical note
Funding Information:This work was supported by Army Research Office, contract no. DAAD 19-02-1-0261, NSF––Division of Materials Research, contract no. 0244126, and The US Civilian Research and Development Foundation, grant no. RE1-2525-TO-03.
Keywords
- CoNiAl
- Martensitic phase transformation
- Pseudoelasticity
- Shape memory alloys
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys