Back to Search
Start Over
A multielement alloying strategy to improve elastocaloric and mechanical properties in Ni–Mn-based alloys via copper and boron
- Source :
- Scripta Materialia, Scripta Materialia, Elsevier, 2020, 185, pp.94-99. ⟨10.1016/j.scriptamat.2020.04.001⟩
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- International audience; Ni–Mn-based shape memory alloy is a promising candidate as the solid-state elastocaloric refrigerant in the micro- or nano-refrigeration fields owing to the required small driving force. In this letter, we report a multielement alloying strategy, i.e., the co-substitution of non-magnetic element and boron for Mn, to improve the elastocaloric refrigeration efficiency and mechanical properties simultaneously. Under Cu and B co-substitution, a large adiabatic temperature change of –12.8 K and a giant specific adiabatic temperature change of 41.0 K/GPa were obtained in the directionally solidified Ni50(Mn31.7Cu2.5B0.3)In15.5 alloy. The proposed alloying manner is also favorable to enhance fracture resistance and cyclability.
- Subjects :
- Materials science
Alloy
chemistry.chemical_element
02 engineering and technology
engineering.material
01 natural sciences
Refrigerant
[SPI]Engineering Sciences [physics]
Magnetic shape memory alloys
0103 physical sciences
Doping
General Materials Science
Ni-Mn-In
Adiabatic process
Boron
010302 applied physics
Mechanical Engineering
Metallurgy
Metals and Alloys
Refrigeration
Shape-memory alloy
021001 nanoscience & nanotechnology
Condensed Matter Physics
Copper
Elastocaloric
chemistry
Mechanics of Materials
Martensitic transformation
engineering
0210 nano-technology
Subjects
Details
- ISSN :
- 13596462
- Volume :
- 185
- Database :
- OpenAIRE
- Journal :
- Scripta Materialia
- Accession number :
- edsair.doi.dedup.....802e14f955dfb3a134d7997e56d25dee