Microstructure, Magnetism and Magnetic Field Induced-Strain in Er-Doped Co-Ni-Al Polycrystalline Alloy

Ju, Jia; Lou, Shuting; Chen, Yan; Yang, Lijun; Li, Tao; Hao, Shuai; Wang, Xingyi; Liu, Huan

doi:10.1007/s11664-017-5339-6

Cited by 7 publications

(8 citation statements)

References 20 publications

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“…Earlier research has indicated that the MFIS of FSMAs depends on the driving force that is coupled to the rearrangement of the twin boundaries [ 34 , 35 ]. The driving force can be expressed by using a dimensionless field parameter (Df) (see Equation (3)) [ 36 ]:

where Ms·H is the Zeeman energy and Ku are the magneto crystalline anisotropy energy. Moreover, Ms is the saturation magnetization and H is the applied magnetic field.…”

Section: Discussionmentioning

confidence: 99%

“…Earlier research has indicated that the MFIS of FSMAs depends on the driving force that is coupled to the rearrangement of the twin boundaries [34,35]. The driving force can be expressed by using a dimensionless field parameter (Df) (see Equation ( 3)) [36]:…”

Section: Mfis Variationsmentioning

confidence: 99%

“…To secure the twin martensite rearrangements in the A1 to A4 alloy samples, another key parameter, Ku, has here been calculated. These calculations are based on the Sucksmith-Thompson method (see Equations ( 4) and ( 5)) [36].…”

Section: Mfis Variationsmentioning

confidence: 99%

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Microstructure and Magnetic Field-Induced Strain of a Ni-Mn-Ga-Co-Gd High-Entropy Alloy

Bao

et al. 2021

Materials

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The effect of a high-entropy design on martensitic transformation and magnetic field-induced strain has been investigated in the present study for Ni-Mn-Ga-Co-Gd ferromagnetic shape-memory alloys. The purpose was to increase the martensitic transition temperature, as well as the magnetic field-induced strain, of these materials. The results show that there is a co-existence of β, γ, and martensite phases in the microstructure of the alloy samples. Additionally, the martensitic transformation temperature shows a markedly increasing trend for these high-entropy samples, with the largest value being approximately 500 °C. The morphology of the martensite exhibits typical twin characteristics of type L10. Moreover, the magnetic field-induced strain shows an increasing trend, which is caused by the driving force of the twin martensite re-arrangement strengthening.

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where Ms·H is the Zeeman energy and Ku are the magneto crystalline anisotropy energy. Moreover, Ms is the saturation magnetization and H is the applied magnetic field.…”

Section: Discussionmentioning

confidence: 99%

“…Earlier research has indicated that the MFIS of FSMAs depends on the driving force that is coupled to the rearrangement of the twin boundaries [34,35]. The driving force can be expressed by using a dimensionless field parameter (Df) (see Equation ( 3)) [36]:…”

Section: Mfis Variationsmentioning

confidence: 99%

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Microstructure and Magnetic Field-Induced Strain of a Ni-Mn-Ga-Co-Gd High-Entropy Alloy

Bao

et al. 2021

Materials

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“…Additionally, recent studies [10,14,15] on Co-Ni-Al series alloys, revealed that a large output MFIS could be affected by two main parameters, including a suitable martensite structure and a large deformation drive force. As it concerns the first factor, the MFIS can be obtained due to the martensite twin boundaries rearrangement under EMF.…”

Section: Introductionmentioning

confidence: 99%

“…This is due to the magnetic domains, which exist in twin martensite variants, migrated in parallel with EMF direction, which results in the martensite variants being rearranged. In addition, as it concerns the second factor, the drive force for MFIS can be controlled by saturation magnetization and magnetocrystalline anisotropy of alloy, as described by Handley [16] and Ju et al [14].…”

Section: Introductionmentioning

confidence: 99%

Structure and Martensitic Transformation in Rapidly Solidified CoNiAlFe Alloy

Chen

Shuai

et al. 2017

Metals

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Abstract:Housler based magnetic controlled shape memory alloys are characterized by a large magnetic field induced strain. The strain was dependent on the twin martensite structure rearrangement, and the rapid solidification technology had a significant influence on the microstructure, physical, and chemical properties of the alloy. Thus, the structure and the martensitic transformation changes of Co 33 Ni 31 Al 27 Fe 9 during the rapidly solidified process were studied. The microstructure of Co 33 Ni 31 Al 27 Fe 9 with furnace cooled and rapid solidification (RS) constitutes a dual-phase structure, β phase and γ phase in a low cooling rate and martensite and γ phase in a high cooling rate. The γ phase at the grain boundaries reduced and became more fragile by raising the R C value. The one-step austenite-martensite phase transformation occurred during the process of heating and cooling. The phase transition temperature presents an increasing trend by rising the cooling rate, even to over the room temperature. Moreover, the martensite structure in Co 33 Ni 31 Al 27 Fe 9 constitutes a typical L1 0 -type twinning structure.

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Effect of heat treatment on structure and magnetic properties of Ni36Co37Al27 alloy produced by laser powder bed fusion

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Kim

Shamshurin

et al. 2023

Journal of Alloys and Compounds

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Microstructure, Magnetism and Magnetic Field Induced-Strain in Er-Doped Co-Ni-Al Polycrystalline Alloy

Cited by 7 publications

References 20 publications

Microstructure and Magnetic Field-Induced Strain of a Ni-Mn-Ga-Co-Gd High-Entropy Alloy

Microstructure and Magnetic Field-Induced Strain of a Ni-Mn-Ga-Co-Gd High-Entropy Alloy

Structure and Martensitic Transformation in Rapidly Solidified CoNiAlFe Alloy

Effect of heat treatment on structure and magnetic properties of Ni36Co37Al27 alloy produced by laser powder bed fusion

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