• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials Science and Engineering >Thermomechanical treatment-induced microstructure refinement to optimize mechanical properties of TC21 titanium alloys
【24h】

Thermomechanical treatment-induced microstructure refinement to optimize mechanical properties of TC21 titanium alloys

机译：热机械处理诱导的微观结构细化，优化TC21钛合金的机械性能

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

The main objective of this study was to optimize mechanical properties of TC21 alloys by combining hot rolling with single ageing. The microstructure was characterized by optical microscopy (OM), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and image analysis software. Results showed that hot-rolled and 520°C aged samples exhibited more excellent comprehensive properties. It was observed that the rolling process not only refined primary α phase (α_p), but also resulted in the precipitation of fine secondary α phases (α_s) in the p transformed microstructure (β_(trans))- The ageing treatment enhanced the precipitation of more α_s, but had little effect on the α_p size. Hot-rolled sample exhibited the higher strength than the as-received sample, which was attributed to an increase in the number of α_p/β_(trans) interfaces and the refinement of α_s precipitations. The aged samples had the higher strength than the hot-rolled sample due to an increase in the number of α_s/β interfaces. The as-received and hot-rolled samples exhibited higher ductility than the aged sample, because the β_(trans) underwent a larger deformation and had a better coordinated deformation between α_p and β_(trans) of the as-received and hot-rolled samples. Both strength and ductility of TC21 alloy decreased with increasing ageing temperature, the decrease in the strength was attributed to the reduction of the number density of α_s precipitates, whereas the decrease in the ductility was attributed to the reduction in the α_p volume fraction and the coarsening of α_s.
机译：本研究的主要目的是通过将热轧轧制与单衰老结合来优化TC21合金的机械性能。微观结构的特征在于光学显微镜（OM），扫描电子显微镜（SEM），透射电子显微镜（TEM）和图像分析软件。结果表明，热轧和520°C老化样品表现出更优异的综合性能。观察到轧制过程不仅重化初级α相（α_P），而且导致P变换微观结构（β_（反式））中细胞细胞α相（α_）的沉淀 - 老化处理增强了沉淀更多α_S，但对α_P大小没有影响。热轧样品表现出比AS接收的样品更高的强度，其归因于α_P/β-（Trans）界面的数量的增加和α_S沉淀的细化。由于α_S/β接口的数量的增加，老化样品具有比热轧样品更高的强度。接收的和热轧样品表现出比老化样品更高的延展性，因为β_（反式）经历了较大的变形，并且在接收和热轧样品的α_P和β-（Trans）之间具有更好的协调变形。 TC21合金的强度和延展性随着老化温度的增加而降低，强度的降低归因于α_S沉淀物的数量密度的降低，而延展性的降低归因于α_P体积分数的减少和粗化α_s。

著录项

  • 来源
    《Materials Science and Engineering》 |2021年第22期|141095.1-141095.10|共10页
  • 作者

    Shu Wang; Yilong Liang; Hao Sun; Xin Feng; Chaowen Huang;

  • 作者单位

    College of Materials and Metallurgy Guizhou University Guiyang 550025 China Key Laboratory for Mechanical Behavior and Microstructure of Materials of Guizhou Province Guiyang 550025 China National & Local Joint Engineering Laboratory for High-performance Metal Structure Material and Advanced Manufacturing Technology Guiyang 550025 China;

    College of Materials and Metallurgy Guizhou University Guiyang 550025 China Key Laboratory for Mechanical Behavior and Microstructure of Materials of Guizhou Province Guiyang 550025 China National & Local Joint Engineering Laboratory for High-performance Metal Structure Material and Advanced Manufacturing Technology Guiyang 550025 China;

    College of Materials and Metallurgy Guizhou University Guiyang 550025 China Key Laboratory for Mechanical Behavior and Microstructure of Materials of Guizhou Province Guiyang 550025 China National & Local Joint Engineering Laboratory for High-performance Metal Structure Material and Advanced Manufacturing Technology Guiyang 550025 China;

    College of Materials and Metallurgy Guizhou University Guiyang 550025 China Key Laboratory for Mechanical Behavior and Microstructure of Materials of Guizhou Province Guiyang 550025 China National & Local Joint Engineering Laboratory for High-performance Metal Structure Material and Advanced Manufacturing Technology Guiyang 550025 China;

    College of Materials and Metallurgy Guizhou University Guiyang 550025 China Key Laboratory for Mechanical Behavior and Microstructure of Materials of Guizhou Province Guiyang 550025 China National & Local Joint Engineering Laboratory for High-performance Metal Structure Material and Advanced Manufacturing Technology Guiyang 550025 China;

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

    TC21 titanium alloy; Mechanical properties; α_s precipitates; Phase interface; Microstructure refinement;

    机译：TC21钛合金;机械性能;α_s沉淀;相界面;微观结构细化;

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