Explore of NiMn-base meta-magnetic shape memory alloys

NiMn基超磁形状记忆合金的探索

• 批准号: 21656169
• 负责人: OIKAWA Katsunari
• 金额: $ 2.16万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21656169/
• 关键词: 形状記憶合金; メタ磁性; 磁気変態; 機能性材料; 磁性形状記憶合金; マルテンサイト変態

Heusler alloys such as Ni-Mn-Ga and Ni-Mn-In alloys have received much attention as ferromagnetic shape memory alloys and metamagnetic shape memory alloys. These alloys are formed the solid solution of bcc-base ordered structure at high temperature in the composition range from NiMn-B2 phase to Ni2MnX-L21 phase. This bcc-base ordered phase transform to the martensite phase with unique magnetic properties. In the case of alloys with Al, Ga, In, Sb of metalloid groups, the stability of bcc ordered structure have been studied well, but in the case of Si, Ge, Pb, Bi in the same metalloid groups, those are not clarified yet. In this study, Ni59Mn50-xXx(X : Si, Ge, Pb, Bi)was prepared and the phase stability of these alloys in the temperature range from 850. C to 1000. C was investigated. Alloys added small amount of Si and Ge showed the martensitic structure, and the solubility of Si and Ge in the NiMn-B2 structure is 4 at%and 7at%, respectively. Both Ni50Mn35Si15 and Ni50Mn35Ge15 alloys showed the single-phase structure. But the crystalline structure of these alloys is. 2 phase with Ni3Mn2Si2 structure not solid solution phase with bcc ordered structure. In the Ni-Mn-Ge system, 1, 2, T were newly founded. In the case of alloys with Pb and Bi, the solubility of these elements in NiMn-B2 phase is less than 1 at%and the structure of the martensite phase are 2M structure

Ni-Mn-Ga和Ni-Mn-In合金等Heusler合金作为铁磁形状记忆合金和变磁形状记忆合金而备受关注。这些合金在高温下形成bcc基有序结构的固溶体，成分范围从NiMn-B2相到Ni2MnX-L21相。这种 bcc 基有序相转变为具有独特磁性的马氏体相。对于含有Al、Ga、In、Sb类准金属族的合金，bcc有序结构的稳定性已得到很好的研究，但对于同一类准金属族中的Si、Ge、Pb、Bi的合金，其bcc有序结构的稳定性尚不清楚。然而。本研究制备了Ni59Mn50-xXx(X：Si、Ge、Pb、Bi)，并研究了这些合金在850℃至1000℃温度范围内的相稳定性。添加少量Si和Ge的合金呈现马氏体结构，Si和Ge在NiMn-B2结构中的溶解度分别为4at%和7at%。 Ni50Mn35Si15和Ni50Mn35Ge15合金均呈现单相结构。但这些合金的晶体结构是。具有 Ni3Mn2Si2 结构的 2 相，不是具有 bcc 有序结构的固溶体相。在Ni-Mn-Ge系中，新建立了1、2、T。对于含有 Pb 和 Bi 的合金，这些元素在 NiMn-B2 相中的溶解度小于 1 at%，马氏体相的结构为 2M 结构

项目成果

Chemical segregation and mechanical properties of NiFeGaCo magnetic shape memory alloy

NiFeGaCo磁性形状记忆合金的化学偏析及力学性能

• 发表时间: 2011
• 作者: K. Oikawa;R. Saito;K. Anzai;T. Omori;Y. Sutou;R. Kainuma;K. Ishida and V. A. Chernenko
• 通讯作者: K. Ishida and V. A. Chernenko

Ni-Fe-Ga-Co系磁性形状記憶合金の材料特性とプロセス

Ni-Fe-Ga-Co磁性形状记忆合金材料性能及工艺

• 发表时间: 2010
• 作者: 及川勝成;ら
• 通讯作者: ら

Magnetic anisotropy and stress-assisted magnetic-field-induced strain in the Ni-Fe-Ga-Co ferromagnetic shape memory alloy

Ni-Fe-Ga-Co铁磁形状记忆合金的磁各向异性和应力辅助磁场诱发应变

• 发表时间: 2011
• 作者: H. Morito;K. Oikawa;A. Fujita;K. Fukamichi;R. Kainuma and K. Ishida
• 通讯作者: R. Kainuma and K. Ishida

磁性形状記憶合金の開発とマイクロPDによる結晶育成

磁性形状记忆合金的开发和使用微PD的晶体生长

• 发表时间: 2010
• 作者: 須藤祐司;及川勝成;石川博康;貝沼亮介;石田清仁
• 通讯作者: 石田清仁

Magnetic and structural properties of the magnetic shape memory compound Ni2Mn1.48Sb0.52

• DOI: 10.1088/0953-8984/22/9/096002
• 发表时间: 2006-02
• 期刊: Journal of Physics: Condensed Matter
• 作者: P. Brown;A. P. Gandy;K. Ishida;W. Ito;R. Kainuma;T. Kanomata;K. Neumann;K. Oikawa;B. Ouladdiaf;A. Sheikh;K. Ziebeck