Morphology, microstructure, and hardness of titanium (Ti-6Al-4V) blocks deposited by wire-feed additive layer manufacturing (ALM)

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Erhard Brandl - , Airbus Group (Author)
  • Achim Schoberth - , Airbus Group (Author)
  • Christoph Leyens - , Chair of Materials Technology, TUD Dresden University of Technology (Author)

Abstract

Additive layer manufacturing offers a potential for time and cost savings, especially for aerospace components made from costly titanium alloys. In this paper, the morphology, microstructure, chemical composition, and hardness of additive manufactured Ti-6Al-4V blocks are investigated and discussed. Blocks (7 beads wide, 7 layers high) were deposited using Ti-6Al-4V wire and a Nd:YAG laser. Two different sets of parameters are used and three different post heat treatment conditions (as-built, 600°C/4. h, 1200°C/2. h) are investigated. The experiments reveal elementary properties of additive manufactured Ti-6Al-4V material in correlation to process parameters and heat treatments, which are discussed comprehensively.

Details

Original languageEnglish
Pages (from-to)295-307
Number of pages13
JournalMaterials Science and Engineering: A
Volume532
Publication statusPublished - 15 Jan 2012
Peer-reviewedYes

Keywords

Keywords

  • Additive layer manufacturing, Chemical composition, Hardness measurement, Light microscopy, Microstructure, Titanium alloys