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Preparation of TiAl Based Metallic Fibers

  • Yongchuan Yu
  • Shuling Zhang
  • Weiye Chen
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

The microstructure and outward of Ti-44Al-8Nb fibers prepared by melt spinning method were investigated by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and analyzed by line scan energy spectrum and energy dispersive X-ray detector. The fibers were manufactured at two rotation speeds. The outward of the fibers with Rayleigh-wave was defaulted when the rotation speed was 2000 r/min. But when the rotational speed up to 2600 r/min, the fibers became a ribbon shape. The fiber quality of the fibers prepared with these two rotation speeds were unsatisfactory. The microstructure was mainly composed of fine α2 phase, γ phase dendritic crystal and a second phase which was confirmed to be Ti5Si3. The above analysis results showed that the reaction among Ti-44Al-8Nb alloy, quartz tube, and BN crucible occurred. The feasibility of zirconia crucible and zirconia tube were speculated. In all respects, the above work laid the foundation for the latter part of the preparation process which also needs to be optimized.

Keywords

Microstructure Rapid-solidification Melt extracted 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.School of Mechanical EngineeringNingxia UniversityNingxia YinchuanChina
  2. 2.School of Materials Science and EngineeringBeifang University of NationalitiesNingxia YinchuanChina

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