...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Mechanical behavior and phase transformation of beta-type Ti-35Nb-2Ta-3Zr alloy fabricated by 3D-Printing
【24h】

Mechanical behavior and phase transformation of beta-type Ti-35Nb-2Ta-3Zr alloy fabricated by 3D-Printing

机译：用3D印刷制造的β型Ti-35nb-2TA-3zr合金的力学行为和相变

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

Additive manufacturing (AM) has a substantial capability to produce superior and divergent properties of titanium alloys for biomedical implants, unlike the existing conventional technologies. This work investigated the mechanical properties and microstructure evolution of a beta-type Ti-35Nb-2Ta-3Zr alloy prepared by selective laser sintering (SLS) process. The superelastic properties of the resultant specimen were characterized by cyclic loading-unloading tensile testing to evaluate the effect of SLS-process on the beta-type Ti alloy specimen. The zigzag and V-shaped formation of {112}<111>(beta) twins, coexisting with stress-induced omega-formation, were observed by the transmission electron microscopy (TEM). The formation of Type I twin martensite along with beta-structure is attributed to superelastic recovery and elastic recovery of SLS-produced specimen. High resolution TEM (HRTEM) observation was used to investigate the transition between beta and omega phases. Thin layers of omega-formation in weak interfacial stress regions along with the longitudinal twin boundaries were also analyzed. The orientation relationship between omega-structure and parent beta-phase involves an overlapping of omega-phase, observed along with longitudinal beta-matrix and beta-twins. Moreover, dislocation tangles and dislocation pile-ups form along with twin martensite, stress-induced omega-phase, and beta-phase. (C) 2019 Elsevier B.V. All rights reserved.
机译：与现有的常规技术不同，添加剂制造（AM）具有产生用于生物医学植入物的钛合金的优异性和发散性能。该作品研究了通过选择性激光烧结（SLS）工艺制备的β型Ti-35nb-2TA-3zr合金的机械性能和微观结构演化。通过循环加载 - 卸载拉伸试验表征所得样本的超弹性性能，以评估SLS-过程对β型Ti合金标本的影响。通过透射电子显微镜（TEM）观察{112} <111>（β111>（β）双胞胎的Zigzag和V形形成与应激诱导的ω形成。 I型双马氏体与β结构的形成归因于SLS制作标本的超弹性回收和弹性回收。使用高分辨率TEM（HRTEM）观察来研究β和ω阶段之间的转变。还分析了薄弱界面应力区域的薄层形成以及纵向双界的薄层。 ω结构与母体β相之间的取向关系涉及ω相的重叠，与纵向β基质和β-双胞胎一起观察。此外，脱位缠结和位错堆积与双马氏体，应激诱导的ω相和β相。 （c）2019 Elsevier B.v.保留所有权利。

著录项

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