Incommensurateness in nanotwinning models of modulated martensites

Barbora Benesova; Miroslav Frost; Malte Kampschulte; Christof Melcher; Petr Sedlak; Hanus Seiner

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Incommensurateness in nanotwinning models of modulated martensites

机译：调制马氏体纳米孪生模型中的不对称性

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We study the formation of modulated martensites in ferromagnetic shape memory alloys by a mathematical model originating from the nanotwinning concept. The results show that the incommensurateness, systematically observed in experiments for the modulated phases, may be understood as a precursor effect of the intermartensitic transitions, and its appearance does not contradict the nanotwinning concept itself. The model sufficiently explains the different levels of incommensurateness reported from different experimental observations for the 14-layered and 10-layered martensites of the Ni-Mn-Ga alloy and outlines the mechanism of formation of faults in the stacking sequences of these materials.

机译：我们通过源自纳米孪生概念的数学模型研究了铁磁形状记忆合金中调制马氏体的形成。结果表明，在调制相的实验中系统观察到的不相称性可以理解为马氏体转变的先驱效应，其出现与纳米孪生概念本身并不矛盾。该模型充分说明了Ni-Mn-Ga合金14层和10层马氏体的不同实验观察结果所报告的不同程度的不相称性，并概述了这些材料的堆积顺序中的断层形成机理。

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来源
《Physical review》 |2015年第18期|180101.1-180101.5|共5页
作者
Barbora Benesova; Miroslav Frost; Malte Kampschulte; Christof Melcher; Petr Sedlak; Hanus Seiner;
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作者单位

Department of Mathematics, Julius-Maxmilians University Wuerzburg, Emil-Fischer-Strasse 40, D-97074 Wuerzburg, Germany;

Institute of Thermomechanics, Academy of Sciences of the Czech Republic, Dolejskova 5, 182 00 Prague 8, Czech Republic;

Department of Mathematics I, RWTH Aachen, Pontdriesch 14-16, D-52056 Aachen, Germany;

Department of Mathematics I, RWTH Aachen, Pontdriesch 14-16, D-52056 Aachen, Germany;

Institute of Thermomechanics, Academy of Sciences of the Czech Republic, Dolejskova 5, 182 00 Prague 8, Czech Republic;

Institute of Thermomechanics, Academy of Sciences of the Czech Republic, Dolejskova 5, 182 00 Prague 8, Czech Republic;

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正文语种 eng
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关键词
commensurate-incommensurate transitions; martensitic transformations;

机译：相称的过渡;马氏体转变;

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1. Incommensurate 6M-modulated structure of Ni-Fe-Ga martensite [J] . L. Righi, P. Lazpita, J. Gutierrez Scripta materialia . 2010,第6期

机译：Ni-Fe-Ga马氏体的不相称6M调制结构
2. Incommensurate modulated structure of the ferromagnetic shape-memory Ni2MnGa martensite [J] . Righi L, Albertini F, Calestani G, International Journal of Quantum Chemistry . 2006,第11期

机译：铁磁形状记忆Ni2MnGa马氏体的不规则调制结构
3. Magnetism of nanotwinned martensite in magnetic shape memory alloys [J] . Golub V, Lvov V. A., Salyuk O., Journal of Physics. Condensed Matter . 2020,第31期

机译：磁性形状记忆合金中纳米线马氏体的磁力
4. Nonlinear localization in modulated and incommensurate (self-modulated) optical structures [C] . Gerasimchuk, I.V., Kovalev, . 2003

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5. A new Framework for the Interpretation of Modulated Martensites in Shape Memory Alloys. [D] . Jusuf, Vincent. 2013

机译：解释形状记忆合金中马氏体的新框架。
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7. Incommensurate modulated structure of the ferromagnetic shape-memory Ni2MnGa martensite. [O] . Righi Lara, Albertini Franca, Paoluzi Antonio, 2006

机译：铁磁形状记忆Ni2MnGa马氏体的不当调制结构。
8. Determination of the Incommensurately Modulated Structure of Alpha-Uranium Below 37K [R] . van Smaalen, S., George, T. F. 1986

机译：确定37K以下α-铀的不同调制结构

Incommensurateness in nanotwinning models of modulated martensites

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