+高级检索
中高温“硬核-强界面”的高强韧耐磨钛合金制备与研究
DOI:
作者:
作者单位:

四川大学材料科学与工程学院

作者简介:

通讯作者:

中图分类号:

TB331

基金项目:

四川省重点研发计划(2023ZDZX0028)


Preparation and study of high strength and wear-resistant titanium alloys with "hard core-strong interface" at moderate temperature
Author:
Affiliation:

School of Materials Science and Engineering, Sichuan University

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    为改善钛(Ti)的硬度和耐磨性,本文通过在纯钛(Ti)中引入TiB2硬质相,基于放电等离子烧结技术(SPS)控制二者的反应进程,在Ti基体中构建出继承B元素扩散路径的TiB2-TiB-Ti“硬核-强界面”组织结构。最终在TiB2添加量40%时,获得了室温下863.5 HV5以及400℃下720.9 HV5的高硬度,其在相同摩擦条件下,室温至400℃温域内的摩擦性能皆优于商用TC4高温钛合金。与此同时,得益于优良的结合界面,该合金还展示出独特的高温高强韧特性,在400℃下仍保持了1120 MPa的高抗压强度与10%以上的压缩率。本研究设计思路具有启发与普适性,有望为新型中高温高强韧耐磨钛合金材料的研发提供新方法,推动相关材料在航空航天领域的应用。

    Abstract:

    In order to improve the hardness and wear resistance of titanium (Ti), in this paper, it is proposed to introduce TiB2 hard phase into pure titanium (Ti), accurately control the reaction process of the two based on the discharge plasma sintering (SPS) technology, and construct a TiB2-TiB-Ti "hard-core-strong-interface" structure in Ti matrix that inherits the diffusion path of B elements. Finally, at 40% TiB2 addition, a high hardness of 863.5 HV5 at room temperature and 720.9 HV5 at 400℃ in the middle and high temperatures is obtained, which makes its friction performance better than that of commercial TC4 high-temperature titanium alloys under the same friction conditions in the temperature range from room temperature to 400℃. At the same time, thanks to its excellent bonding interface, the alloy also exhibits unique high-temperature and high-toughness properties, maintaining a high compressive strength of 1120 MPa and compression of more than 10% at 400℃. The design concept of this study is inspirational and useful. The design idea of this study is inspiring and universal, which is expected to provide a new method for the research and development of new medium-high-temperature and high-toughness wear-resistant titanium alloys, and to promote the application of related materials in aerospace field.

    参考文献
    相似文献
    引证文献
引用本文

李娟,刘畅,王璐,李洞亭,周立玉,刘颖.中高温“硬核-强界面”的高强韧耐磨钛合金制备与研究[J].稀有金属材料与工程,,().[lijuan, liuchang, wanglu, lidongting, zhouliyu, liuying. Preparation and study of high strength and wear-resistant titanium alloys with "hard core-strong interface" at moderate temperature[J]. Rare Metal Materials and Engineering,,().]
DOI:[doi]

复制
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2024-03-01
  • 最后修改日期:2024-04-10
  • 录用日期:2024-04-18
  • 在线发布日期:
  • 出版日期: