Structure and Multifunctional Properties of Co50V33Ga16Sb1 Alloy

Huang, Yimin; Jing, Chao; Sun, Xiaodong; Zhang, Y. L.; Li, Z.; Ye, M. F.; Wu, Yuqin

doi:10.1007/s11837-019-03628-z

Cited by 7 publications

(2 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[21,22] In the past few decades, Co-based Heusler alloys have aroused wide concern as potential candidates for spintronic applications. [17,[23][24][25][26][27][28][29] Besides, the martensitic transformation (MT) in Co-based alloys has been under consideration since the 1970s. [28,30] In particular, the Co-based Heusler alloys undergoing the first-order type MT, namely the transformation from the L2 1 cubic austenitic structure to the D0 22 tetragonal martensitic structure, have been developed.…”

Section: Introductionmentioning

confidence: 99%

Large Elastocaloric Effect in Fe‐Doped Co–Fe–V–Ga Shape Memory Alloys

Xuan

Wang

et al. 2022

Physica Status Solidi (a)

View full text Add to dashboard Cite

Herein, the impact of Fe substitution for Co on martensitic transformation (MT), crystal structure, elastocaloric effect (eCE), and mechanical characteristics in Co51V34Ga15 shape memory alloys (SMAs) is systematically investigated. The temperatures of MT are found to be properly adjusted by varying the Fe content in Co51−xFexV34Ga15 (x = 0, 0.3, and 0.6) alloys, shifting toward the lower values as the Fe concentration increases. Furthermore, alloying with Fe is shown to significantly improve the eCE and superelastic properties of these alloys. Under the uniaxial stress of 600 MPa, the Co50.7Fe0.3V34Ga15 alloy exhibits a significant adiabatic temperature drop of −9.5 K under adiabatic cooling conditions. Moreover, it demonstrates good stability during the cycling test with a stable temperature change of −6.6 K remaining nearly constant after 420 cycles under 500 MPa. Additionally, a maximum compressive strength of approximately 1500 MPa is achieved in the Co50.7Fe0.3V34Ga15 alloy, which makes it the promising candidate for multifunctional materials.

show abstract

Section: Introductionmentioning

confidence: 99%

Large Elastocaloric Effect in Fe‐Doped Co–Fe–V–Ga Shape Memory Alloys

Xuan

Wang

et al. 2022

Physica Status Solidi (a)

View full text Add to dashboard Cite

show abstract

“…Recently, novel Heusler-type CoVGa alloys have been found to exhibit the multifunctional behaviors related to the first-order martensitic transformation from cubic L2 1 austenite to tetragonal D0 22 martensite. − Through the thermal/magnetic field-induced martensitic transformation, various functional behaviors, including magnetocaloric effect, − magnetostrain behavior, and shape memory effect, ,, were exploited. Besides, based on the stress-induced martensitic transformation, these alloys can also exhibit large elastocaloric effect .…”

Section: Introductionmentioning

confidence: 99%

Long-Term Stable Elastocaloric Effect in a Heusler-Type Co₅₁V₃₃Ga₁₆ Polycrystalline Alloy

Liu

Wang

et al. 2022

ACS Appl. Energy Mater.

View full text Add to dashboard Cite

Cyclic stability is of utmost importance for the long-term work of caloric materials in solid-state refrigeration. Heusler-type shape memory alloys show a large elastocaloric effect under low driving stress, but their intrinsic brittleness always leads to poor cyclic stability. Here, we demonstrate the simultaneously achieved large elastocaloric effect and long-term cyclic stability in a Heusler-type Co 51 V 33 Ga 16 polycrystalline alloy. Over a wide temperature range of 290−340 K, large adiabatic temperature change (ΔT ad ) values of −6.0 to −10.9 K can be obtained upon fast unloading. Moreover, by synthetically considering the influences of deformation parameters on the ΔT ad values, stress hysteresis, energy dissipation, and temporary residual strain to balance cooling capacity and cyclability, large ΔT ad values higher than 6.0 K are maintained for more than 50 000 superelastic cycles performed under the compressive strain of 3.5% and strain rate of 1.1 × 10 −2 s −1 , showing a very low degradation rate of 2 × 10 −5 K per cycle. Such cyclic stability of elastocaloric effect well outperforms those reported in Heusler-type alloys so far.

show abstract

Influence of hydrostatic pressure on martensitic transformation and strain behavior for Co52V29+xGa19−x Heusler alloys

Cao

et al. 2020

J Mater Sci

View full text Add to dashboard Cite

Structure and Multifunctional Properties of Co50V33Ga16Sb1 Alloy

Cited by 7 publications

References 40 publications

Large Elastocaloric Effect in Fe‐Doped Co–Fe–V–Ga Shape Memory Alloys

Large Elastocaloric Effect in Fe‐Doped Co–Fe–V–Ga Shape Memory Alloys

Long-Term Stable Elastocaloric Effect in a Heusler-Type Co₅₁V₃₃Ga₁₆ Polycrystalline Alloy

Influence of hydrostatic pressure on martensitic transformation and strain behavior for Co52V29+xGa19−x Heusler alloys

Contact Info

Product

Resources

About

Structure and Multifunctional Properties of Co50V33Ga16Sb1 Alloy

Cited by 7 publications

References 40 publications

Large Elastocaloric Effect in Fe‐Doped Co–Fe–V–Ga Shape Memory Alloys

Large Elastocaloric Effect in Fe‐Doped Co–Fe–V–Ga Shape Memory Alloys

Long-Term Stable Elastocaloric Effect in a Heusler-Type Co51V33Ga16 Polycrystalline Alloy

Influence of hydrostatic pressure on martensitic transformation and strain behavior for Co52V29+xGa19−x Heusler alloys

Contact Info

Product

Resources

About

Long-Term Stable Elastocaloric Effect in a Heusler-Type Co₅₁V₃₃Ga₁₆ Polycrystalline Alloy