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.

通过弯曲和拉伸实验，Zr-Co-X（X= Ni，Pd，Pt）合金获得了约40%的形状记忆效应和2%的超弹性应变。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的特征。利用常规透射电镜和高角环形暗场扫描透射电镜研究了ZrCo基合金中一种新的六层正交（6 O）马氏体长周期堆垛有序（LPSO）结构。LPSO结构的晶格参数估计为a = 0.34 nm，B = 0.45 nm，c = 1.53 nm。根据消光规则和对称性，确定LPSO结构的空间群为Immm。

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