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首页> 外文期刊>Journal of Materials Research >Influence of the deformation rate on phase stability and mechanical properties of a Ti-29Nb-13Ta-4.6Zr-xO alloy analyzed by in situ high-energy X-ray diffraction during compression tests
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Influence of the deformation rate on phase stability and mechanical properties of a Ti-29Nb-13Ta-4.6Zr-xO alloy analyzed by in situ high-energy X-ray diffraction during compression tests

机译：变形率对Ti-29NB-13TA-4.6ZR-XO-4.6ZR-XO合金的相位稳定性和力学性能的影响在压缩试验期间分析的原位高能X射线衍射分析

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摘要

In this work, a Ti-29Nb-13Ta-4.6Zr-xO Gum Metal with two significantly different oxygen levels (388 and 3570 ppm) was investigated during deformation. The alloys were compressed during in situ high-energy X-ray diffraction using three different strain rates, 10~(-4), 10~(-3), and 10~(-1) s~(-1) in order to evaluate their influence on phase stability and mechanical properties. The influence of oxygen on the deformation process was also studied. Deformation takes place by twinning, stress-induced, and reverse martensitic transformation and was observed, for some samples, a spinodal decomposition of the p-phase during elastic deformation. The mechanical properties were similar for the different rates employed when considering the same oxygen level. The alloy with a higher amount of oxygen, however, showed a substantial increase in mechanical strength, with a yield strength of around 680 MPa, which is more than three times higher than for the specimen with 388 ppm of oxygen.
机译：在这项工作中，在变形期间研究了具有两个显着不同氧水平（388和3570ppm）的Ti-29nb-13ta-4.6zr-xo gum金属。使用三种不同的应变率，10〜（-4），10〜（-3）和10〜（-1）S〜（-1）以原位高能X射线衍射在原位高能X射线衍射期间被压缩。评估它们对相位稳定性和机械性能的影响。还研究了氧对变形过程的影响。通过孪晶，应激诱导和反向马氏体转化进行变形，并且对于一些样品，观察到旋转的样品，在弹性变形期间对P相的旋膜分解。在考虑相同氧气水平时采用的不同速率相似。然而，具有较高量氧的合金显示出机械强度的显着增加，屈服强度约为680MPa，比具有388ppm氧的样品高出三倍以上。

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  • 来源
    《Journal of Materials Research》 |2020年第14期|1777-1789|共13页
  • 作者

    Murillo R. da Silva; Piter Gargarella; Athos H. Plaine; Rodrigo J. Contieri; Simon Pauly; Uta Kuehn; Claudemiro Bolfarini;

  • 作者单位

    Graduate Program in Materials Science and Engineering Federal University of Sao Carlos Sao Carlos SP 13565-905 Brazil IFW Dresden Institute for Complex Materials 01069 Dresden Germany;

    Graduate Program in Materials Science and Engineering Federal University of Sao Carlos Sao Carlos SP 13565-905 Brazil Department of Materials Engineering Federal University of Sao Carlos Sao Carlos SP 13565-905 Brazil;

    Department of Mechanical Engineering State University of Santa Catarina - UDESC Joinville SC 89223-100 Brazil;

    School of Applied Science University of Campinas - UN1CAMP Campinas SP 13083-970 Brazil;

    Faculty of Engineering University of Applied Sciences Aschaffenburg 63743 Aschaffenburg Germany;

    IFW Dresden Institute for Complex Materials 01069 Dresden Germany;

    Graduate Program in Materials Science and Engineering Federal University of Sao Carlos Sao Carlos SP 13565-905 Brazil Department of Materials Engineering Federal University of Sao Carlos Sao Carlos SP 13565-905 Brazil;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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