• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering >Microstructure and properties of an equiatomic TaTiZr alloy
【24h】

Microstructure and properties of an equiatomic TaTiZr alloy

机译：赤脂素合金的微观结构和性质

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Microstructure and compression mechanical properties of a ternary TaTiZr alloy, after hot isostatic pressing (HIP) at 1400 °C, are reported. In the slow cooled condition, the alloy had a coarse-grained structure consisting of Zr-rich BCC matrix and Ta-rich submicron-sized BCC precipitates, which were coherent to the matrix phase. Ti was almost equally distributed between these two phases, omega-phase nano-precipitates were also detected inside the Zr-rich matrix. According to CALPHAD analysis, the observed microstructure is a metastable one, which was formed in the temperature range of 800-1130 °C during cooling after HIP. The HIP'd alloy had high yield stress of 1671 MPa at 25 °C and 1440 MPa at 400 °C, but low ductility, likely due to the presence of the omega phase. Considerable alloy softening, accommodated by a noticeable increase in ductility, occurred between 400 °C and 600 °C, with the yield stress decreasing to 346 MPa at 600 °C, 157 MPa at 800 °C and 103 MPa at 1000 °C. Such dramatic change in the mechanical behavior was correlated with dissolution of the omega phase and approaching phase equilibrium at T ≥ 600 °C.
机译：三元合金TaTiZr，之后在1400℃下热等静压（HIP）中，报告的微观结构和压缩机械性能。在缓慢冷却的情况下，合金具有由Zr丰富-BCC矩阵和富钽亚微米级的析出物BCC，这是相干的基质相的粗粒度结构。将Ti几乎同样这两个阶段之间分配，ω-相富Zr的矩阵内还检测到的纳米沉淀物。据CALPHAD分析，观察到的微观结构是亚酮，其HIP后的冷却过程中形成的温度范围内的800-1130℃。的HIP'd合金具有1671兆帕的屈服应力高，在25℃和1440兆帕，在400℃，但延展性低，这可能是由于所述ω相的存在。相当大的合金的软化，通过在延展性显着增加容纳，发生400℃和600℃之间，具有屈服应力降低到346兆帕，在600℃，157兆帕在800℃和103兆帕在1000℃。在机械行为，例如巨大的变化在T≥600中的ω相的溶解和接近相平衡相关℃。

著录项

  • 来源
    《Materials Science and Engineering》 |2021年第13期|141168.1-141168.11|共11页
  • 作者

    O.N. Senkov; S.J. Ruhr; J.M. Shank; E.J. Payton; C. Woodward;

  • 作者单位

    Air Force Research Laboratory Materials and Manufacturing Directorate Wright-Patterson AFB OH 45433 USA;

    Air Force Research Laboratory Materials and Manufacturing Directorate Wright-Patterson AFB OH 45433 USA;

    Air Force Research Laboratory Materials and Manufacturing Directorate Wright-Patterson AFB OH 45433 USA;

    Air Force Research Laboratory Materials and Manufacturing Directorate Wright-Patterson AFB OH 45433 USA;

    Air Force Research Laboratory Materials and Manufacturing Directorate Wright-Patterson AFB OH 45433 USA;

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

    Refractory alloy; Microstructure; Phase composition; Mechanical properties;

    机译：耐火合金;微观结构;相组成;机械性能;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号