Deposition of Ti-6Al-4V using laser and wire, part I: Microstructural properties of single beads

Publikation: Beitrag in FachzeitschriftForschungsartikelBeigetragenBegutachtung

Beitragende

  • Erhard Brandl - , Airbus Group (Autor:in)
  • Vesselin Michailov - , Brandenburgische Technische Universität Cottbus-Senftenberg (Autor:in)
  • Bernd Viehweger - , Brandenburgische Technische Universität Cottbus-Senftenberg (Autor:in)
  • Christoph Leyens - , Institut für Werkstoffwissenschaft (IfWW), Professur für Werkstofftechnik, Technische Universität Dresden (Autor:in)

Abstract

In this paper, the microstructural characteristics of Ti-6Al-4V single beads and their dependence on process parameters are addressed. Single beads represent the smallest - and therefore fundamental - unit of additive manufactured components. Bead-on-plates and single beads are produced using a 3.5. kW Nd:YAG laser and Ti-6Al-4V wire. Within 71 sets of process parameters laser beam power, welding speed, and wire-feed speed are varied. The microstructures are investigated by light and scanning electron microscopy, and are divided into several zones according to the thermal history underwent. Microstructural differences of the beads are correlated to the process parameters and discussed. The experiments reveal fundamental microstructural and process characteristics which are helpful for the repeatable and predictable manufacturing and understanding of multi-layered components.

Details

OriginalspracheEnglisch
Seiten (von - bis)1120-1129
Seitenumfang10
FachzeitschriftSurface and Coatings Technology
Jahrgang206
Ausgabenummer6
PublikationsstatusVeröffentlicht - 15 Dez. 2011
Peer-Review-StatusJa

Schlagworte

Schlagwörter

  • Additive manufacturing, Deposition, Laser, Microstructure, Ti-6Al-4V, Titanium