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首页> 外文期刊>Materials science forum >Structure, Phase Transformations and Properties of Rapidly Quenched Ti_2NiCu Alloys
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Structure, Phase Transformations and Properties of Rapidly Quenched Ti_2NiCu Alloys

机译：快速淬火Ti_2NiCu合金的结构，相变和性能

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摘要

Methods of X-ray diffraction, transmission and scanning electron microscopy, and electron diffraction have been used to study phase and chemical compositions and structure of Ti_2NiCu alloys. The alloys of the quasi-binary section TiNi-TiCu, which exhibit in the initial as-cast state thermoelastic martensitic transformations B2→B19 and related shape memory effects, have been produced by rapid quenching of the melt (melt spinning technique). The chemical composition of the Ti_2NiCu alloys was varied with respect to titanium and nickel within x < ±1 at. %. The mechanical properties of the alloys have been measured in the initial state and after subsequent heat treatment. The kinetics of the crystallization from the amorphous state, devitrification processes and the forward and reverse thermoelastic martensitic transformations were investigated. Their characteristic temperatures have been determined by measuring temperature dependences of the electrical resistivity of the alloys. The diagram of the dependence of the critical temperatures on the chemical composition has been constructed.
机译：X射线衍射，透射和扫描电子显微镜以及电子衍射的方法已被用于研究Ti_2NiCu合金的相和化学组成及结构。通过熔体的快速淬火（熔体纺丝技术）生产了准二元截面TiNi-TiCu合金，该合金在初始铸态时表现出热弹性马氏体转变B2→B19和相关的形状记忆效应。 Ti_2NiCu合金的化学组​​成相对于钛和镍在x <±1 at之内变化。 ％。已经在初始状态和随后的热处理之后测量了合金的机械性能。研究了从非晶态，失透过程以及正向和反向热弹性马氏体转变的结晶动力学。它们的特征温度已经通过测量合金的电阻率的温度依赖性来确定。已经建立了临界温度对化学组成的依赖关系图。

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  • 来源
    《Materials science forum》 |2013年第2013期|321-325|共5页
  • 作者

    A.V. Pushin; A.A. Popov; V.G. Pushin;

  • 作者单位

    Institute of Metal Physics, Ural Branch, Russian Academy of Sciences,S. Kovalevskaya str.18, Ekaterinburg, 620990, Russia,The First President of Russia B.N. Yeltsin Ural Federal University (UrFU),Mira str. 19, Ekaterinburg, 620002, Russia;

    The First President of Russia B.N. Yeltsin Ural Federal University (UrFU),Mira str. 19, Ekaterinburg, 620002, Russia;

    Institute of Metal Physics, Ural Branch, Russian Academy of Sciences,S. Kovalevskaya str.18, Ekaterinburg, 620990, Russia,The First President of Russia B.N. Yeltsin Ural Federal University (UrFU),Mira str. 19, Ekaterinburg, 620002, Russia;

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  • 正文语种 eng
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  • 关键词

    Ti_2NiCu-based alloys; rapid quenching; melt spinning technique; amorphous state; nanocrystals; thermoelastic martensitic transformations; shape memory effects;

    机译：Ti_2NiCu基合金;快速淬火;熔融纺丝技术非晶态;纳米晶体;热弹性马氏体相变;形状记忆效应;

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