Abstract
The shape memory properties of a ferrous single crystalline alloy, FeNiCoAlNb, were investigated along the [100] orientation by superelasticity tests in both tension and compression. Aging was used to form nano-size precipitates to demonstrate and tailor their shape memory properties. After aging at 700°C for 3 h, [001]-oriented FeNiCoAlNb shows high compression-tension asymmetry and shape recovery of about 4.5% in tension and 8.8% in compression. The superelastic behavior of [001]-oriented FeNiCoAlNb is weakly temperature dependent due to large transformation strain. FeNiCoAlNb has great potential for temperature independent and large scale actuator applications.
| Original language | English |
|---|---|
| Pages (from-to) | 54-57 |
| Number of pages | 4 |
| Journal | Scripta Materialia |
| Volume | 120 |
| DOIs | |
| State | Published - Jul 15 2016 |
Bibliographical note
Publisher Copyright:© 2016 2016 Elsevier Ltd. All rights reserved.
Funding
Authors gratefully acknowledge the financial support from National Science Foundation (NSF) CMMI award # 0954541 and RSF project with grant no: 14-29-0012 .
| Funders | Funder number |
|---|---|
| U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China | 0954541 |
| Russian Science Foundation | 14-29-0012 |
Keywords
- Iron-based shape memory alloys
- Magnetic shape memory alloys
- Martensitic transformation
- Shape memory effect
- Tension-compression asymmetry
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys