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首页> 外文期刊>Materials Science and Engineering >Influence of deformation parameters and network structure to the microstructure evolution and flow stress of TiBw/Ti64 composite
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Influence of deformation parameters and network structure to the microstructure evolution and flow stress of TiBw/Ti64 composite

机译：变形参数和网络结构对TIBW / TI64复合材料微观结构演化和流量应力的影响

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摘要

Titanium matrix composites (TMCs) play important roles in the weight reduction of the modem aero-space industry due to the excellent combination of strength and ductility. Especially, titanium matrix composites with network architecture have drawn much attention in recent years. To better understand the influence of deformation temperature, strain rate and the network size over the microstructure evolution and the flow stress of network structured TMCs, 8 vol.% TiBw/Ti64 composites with network sized 65 μm, 110 urn and 150 μm were prepared for thermal compression test. The results showed that the decrease in deformation temperature and the increase of the strain rate will prompt the dynamic recrystallization process, thereby producing refined equiaxed α grains. Multiple changes were observed accompanying the decrease of network size, including the refinement of the deformation microstructure, the drop of compressive flow stress, as well as the decrease of the texture intensity. It was also found that, the texture of specimens deformed in β region was inherited from the texture of body centered cubic (BCC) β phase through β→α transformation, abiding by Burgers relationship. Moreover, preference in variants selection during β→α transformation was observed, which is an important factor for the formation of texture in β phase deformation.
机译：钛基复合材料（差旅管理公司）起到减重的调制解调器航空航天工业的重要作用，由于强度和延展性的完美结合。特别是随着网络架构钛基复合材料已引起广泛关注，近年来。为了更好地理解变形温度，应变速率的影响，网络规模上的显微结构演变和结构化差旅管理网络的流动应力，8体积％TiBw​​ /与网络Ti64复合材料尺寸为65μm，110瓮和150μm的是为制备热压缩试验。结果表明，在变形温度的降低和应变速率的增加将促使动态再结晶过程，从而产生精等轴α晶粒。观察到伴随网络尺寸的减小，包括变形组织的微细化，压缩流动应力的下降，以及纹理强度的降低倍数变化。还发现的是，在β区域变形样品的纹理是从主体的质感继承通过β→α变换心立方（BCC）的β相，由汉堡包关系里面。此外，优选的变体中β→α转变过程中选择，观察，这是在β相的变形的形成纹理的重要因素。

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  • 来源
    《Materials Science and Engineering》 |2021年第30期|140997.1-140997.10|共10页
  • 作者

    Rui Zhang; Lujun Huang; Xiangxu Zhao; Lin Geng; Shuai Wang; Shan Jiang; Yang Jiao;

  • 作者单位

    School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 PR China;

    State Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin 150001 PR China School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 PR China;

    School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 PR China;

    State Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology Harbin 150001 PR China School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 PR China;

    School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 PR China;

    School of Materials Science and Engineering Harbin Institute of Technology Harbin 150001 PR China;

    Center of Analysis and Measurement Harbin Institute of Technology Harbin 150001 PR China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Titanium matrix composite; Thermal compression; Microstructure evolution; Deformation texture; Network structure;

    机译：钛基复合材料;热压缩;微观结构演变;变形纹理;网络结构;

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