Crystal structure and crystallographic characteristics of martensite in Ni50Mn38Sb12 alloys

Zhang, Chunyang; Yan, Haile; Zhang, Yudong; Esling, Claude; Zhao, Xiang; Zuo, Liang

doi:10.1107/s1600576716002296

Cited by 8 publications

(2 citation statements)

References 33 publications

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“…The crystallographic orientation of the microwire was measured by the electron backscatter research papers diffraction (EBSD) technique in the SEM. More detailed information on the EBSD measurements for crystallographic analysis in magnetic SMAs can be found in the literature (Zhang et al, 2016a(Zhang et al, , 2017aLin et al, 2016;Yan et al, 2016).…”

Section: Methodsmentioning

confidence: 99%

Magnetic field-induced magnetostructural transition and huge tensile superelasticity in an oligocrystalline Ni–Cu–Co–Mn–In microwire

Chen

Cong

Sun

et al. 2019

Int Union Crystallogr J

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Meta-magnetic shape-memory alloys combine ferroelastic order with ferromagnetic order and exhibit attractive multifunctional properties, but they are extremely brittle, showing hardly any tensile deformability, which impedes their practical application. Here, for the first time, an Ni–Cu–Co–Mn–In microwire has been developed that simultaneously exhibits a magnetic field-induced first-order meta-magnetic phase transition and huge tensile superelasticity. A temperature-dependent in situ synchrotron high-energy X-ray diffraction investigation reveals that the martensite of this Ni43.7Cu1.5Co5.1Mn36.7In13 microwire shows a monoclinic six-layered modulated structure and the austenite shows a cubic structure. This microwire exhibits an oligocrystalline structure with bamboo grains, which remarkably reduces the strain incompatibility during deformation and martensitic transformation. As a result, huge tensile superelasticity with a recoverable strain of 13% is achieved in the microwire. This huge tensile superelasticity is in agreement with our theoretical calculations based on the crystal structure and lattice correspondence of austenite and martensite and the crystallographic orientation of the grains. Owing to the large magnetization difference between austenite and martensite, a pronounced magnetic field-induced magnetostructural transition is achieved in the microwire, which could give rise to a variety of magnetically driven functional properties. For example, a large magnetocaloric effect with an isothermal entropy change of 12.7 J kg−1 K−1 (under 5 T) is obtained. The realization of magnetic-field- and tensile-stress-induced structural transformations in the microwire may pave the way for exploiting the multifunctional properties under the coupling of magnetic field and stress for applications in miniature multifunctional devices.

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Section: Methodsmentioning

confidence: 99%

Magnetic field-induced magnetostructural transition and huge tensile superelasticity in an oligocrystalline Ni–Cu–Co–Mn–In microwire

Chen

Cong

Sun

et al. 2019

Int Union Crystallogr J

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“…This dual-OR phenomenon widely exists in many other NiMn-based ferromagnetic shape memory alloys with modulated martensite, such as Ni 50 Mn 30 Ga 20 (Li Z. B. et al, 2011) with 7M modulated martensite, Ni 50 Mn 28 Ga 22 (Li Z. et al, 2011) with 5M modulated martensite and Ni 50 Mn 38 Sb 12 (Zhang et al, 2016) alloy with 4O modulated martensite.…”

Section: Transformation Orientation Relationshipmentioning

confidence: 97%

Recent Progress in Crystallographic Characterization, Magnetoresponsive and Elastocaloric Effects of Ni-Mn-In-Based Heusler Alloys—A Review

2022

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Ni-Mn-In-based magnetic shape memory alloys have promising applications in numerous state-of-the-art technologies, such as solid-state refrigeration and smart sensing, resulting from the magnetic field-induced inverse martensitic transformation. This paper aims at presenting a comprehensive review of the recent research progress of Ni-Mn-In-based alloys. First, the crystallographic characterization of these compounds that strongly affects functional behaviors, including the crystal structure of modulated martensite, the self-organization of martensite variants and the strain path during martensitic transformation, are reviewed. Second, the current research progress in functional behaviors, including magnetic shape memory, magnetocaloric and elastocaloric effects, are summarized. Finally, the main bottlenecks hindering the technical development and some possible solutions to overcome these difficulties are discussed. This review is expected to provide some useful insights for the design of novel advanced magnetic shape memory alloys.

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Microstructural and Crystallographic Insights in a Martensite/Austenite Dual Phase Ni–Mn–Sb Alloy

et al. 2017

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For Ni-Mn-Sb multifunctional alloy, its microstructure and crystallographic information are decisive factors for its multiple magnetic field induced properties, such as magnetic field induced shape memory effect, magneto-caloric effect, exchange bias effect, and so on. While, studies on such field are rarely conducted. In the present work, a comprehensive study on microstructural features and crystallographic characteristics has been conducted in a martensite/austenite dual phase coexisting polycrystalline Ni 50 Mn 37 Sb 13 alloy. Results show that the martensite is self-organized in plates in the original austenite. The intra-plate martensite presents a fine lamellar microstructure and each fine lamella corresponds to one martensite variant. Crystallographic orientation analysis indicates that each martensite plate exists four differently oriented martensite variants and they can form three types of twins, type I, type II, and compound twin. Trace analysis results show that the interface between adjacent variants are their twinning plane K 1 . Further investigation on martensitic transformation orientation relationship reveals that the Pitsch orientation relationship, specified as 0 1 1g A È // 2 2 1g M È and < 0 11> A //< 1 22> M , is the effective one from austenite to martensite. All the above results offer basic microstructural and crystallographic information on Ni-Mn-Sb alloys and can be useful for further investigation on property optimization of these alloys.

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Crystal structure and crystallographic characteristics of martensite in Ni₅₀Mn₃₈Sb₁₂ alloys

Cited by 8 publications

References 33 publications

Magnetic field-induced magnetostructural transition and huge tensile superelasticity in an oligocrystalline Ni–Cu–Co–Mn–In microwire

Magnetic field-induced magnetostructural transition and huge tensile superelasticity in an oligocrystalline Ni–Cu–Co–Mn–In microwire

Recent Progress in Crystallographic Characterization, Magnetoresponsive and Elastocaloric Effects of Ni-Mn-In-Based Heusler Alloys—A Review

Microstructural and Crystallographic Insights in a Martensite/Austenite Dual Phase Ni–Mn–Sb Alloy

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