Effects of alloying on the Ti-Cu eutectoid transformation

  • Klein, M. (Author)
  • Ella Staufer (Author)
  • Christian Edtmaier (Author)
  • Jelena Horky (Author)
  • Martin Schmitz-Niederau (Author)
  • Duyao Zhang (Author)
  • Mark Easton (Author)
  • Klein, T. (Speaker)

Activity: Talk or presentation / LecturePresentation at a scientific conference / workshop

Description

The development of novel metal alloys tailored for additive manufacturing has been a research focus of recent years. While substantial progress has been presented using powder-based processes, relatively few efforts have been made using wire feedstock and most literature in this field is on commercial welding wires.
Additions of Cu to titanium alloys has been suggested to result in severe grain refinement upon solidification but at the same time a eutectoid reaction is induced. Available literature has provided evidence about these phenomena in binary model alloys, but few reports show the complex interactions in engineering alloy systems.
In the present work, we investigate the effects of the additions of a sluggishly transforming eutectoid element in combination with a solid-solution strengthener on the Ti-Cu active eutectoid system. Effects on the transformation behavior with respect to cooling rate are investigated using scanning and transmission electron microscopy, X-ray diffraction and atom probe tomography. The major objective is to establish an in-depth understanding on the microstructure formation phenomena and their impact on the mechanical properties. The comprehensive analyses presented in this work, suggests that the morphologies of the eutectoid transformation products can be modified using ternary elements, which allows for varying the resultant mechanical characteristics.
Period15 Apr 202418 Apr 2024
Event title3rd Materials Science Colloquium
Event typeConference

Research Field

  • Wire-Based Additive Manufacturing