Development of ZrCo-based shape memory and superelastic alloys with a novel type martensite

新型马氏体ZrCo基形状记忆超弹性合金的开发

• 批准号: 24656417
• 负责人: MATSUDA Mitsuhiro
• 金额: $ 2.5万
• 依托单位: Kumamoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-24656417/
• 关键词: 形状記憶・超弾性特性; マルテンサイト変態; 電子顕微鏡; 構造・機能材料; ジルコニウム; 長周期積層構造; 形状記憶・超弾性; 長周期積層規則構造

The shape memory effect of about 40% and the superelastic strain of 2% were obtained in Zr-Co-X ( X= Ni, Pd, Pt) alloys by convenient bending and tensile tests. This is originated from the formation of martensite with characteristics of both thermal and non-thermal martensitic transformation. A novel long-period stacking-ordered (LPSO) structure of martensite with six layers orthorhombic (6O) structure in ZrCo-based alloys was studied by conventional transmission electron microscopy and high-angle annular dark-field scanning transmission electron microscopy. The lattice parameters of the LPSO structure were estimated to be a = 0.34 nm, b = 0.45 nm, and c = 1.53 nm. The space group of the LPSO structure was determined to be Immm on the basis of the extinction rule and symmetry.

通过方便的弯曲和拉伸试验，Zr-Co-X（X=Ni、Pd、Pt）合金获得了约40%的形状记忆效应和2%的超弹应变。这是由于马氏体的形成，同时具有热马氏体相变和非热马氏体相变特征。利用常规透射电子显微镜和高角度环形暗场扫描透射电子显微镜研究了 ZrCo 基合金中一种新型六层斜方（6O）马氏体长周期堆叠有序（LPSO）结构。 LPSO结构的晶格参数估计为a = 0.34 nm、b = 0.45 nm和c = 1.53 nm。根据消光规则和对称性，确定LPSO结构的空间群为Immmm。

项目成果

Ductility enhancement in Co-Fe-Ni alloys by microstructural control

通过微观结构控制提高 Co-Fe-Ni 合金的延展性

• 发表时间: 2014
• 期刊: Intermetallics
• 影响因子: 4.4
• 作者: M. Matsuda;K. Yamashita;S. Tsurekawa;K. Takashima;M. Nishida
• 通讯作者: M. Nishida

マルテンサイト変態およびマイクロクラックによるB2 型ZrCo 基合金の高延性化

B2型ZrCo基合金马氏体相变和微裂纹的高延展性

• 发表时间: 2012
• 作者: M. Matsuda;Y. Iwamoto;K. Takashima;M. Nishida;金子 良太・片山 輝彦・飯島 正;松田光弘,岩本芳明,高島和希,西田稔
• 通讯作者: 松田光弘,岩本芳明,高島和希,西田稔

Enhancement of ductility in B2-type Zr-Co-Ni alloys with deformation-induced martensite and microcrack formation

• DOI: 10.1016/j.intermet.2013.01.008
• 发表时间: 2013-02
• 期刊: Intermetallics
• 影响因子: 4.4
• 作者: M. Matsuda;Y. Iwamoto;Y. Morizono;S. Tsurekawa;K. Takashima;M. Nishida

Zr-Ni-Co合金のマルテンサイト相に及ぼすCo濃度の影響

Co浓度对Zr-Ni-Co合金马氏体相的影响

• 发表时间: 2012
• 作者: 田中武勇樹;松田光弘;高島和希
• 通讯作者: 高島和希

Microstructural characterization of martensite with long period stacking structure in Zr-Co-Pd alloy

Zr-Co-Pd合金中长周期堆垛结构马氏体的显微组织表征

• 发表时间: 2014
• 作者: M. Matsuda;F. Tanaka;S. Tsurekawa;K. Takashima;M. Mitsuhara;M. Nishida
• 通讯作者: M. Nishida