Direct Metal Deposition of Functional Graded Structures in Ti- Al System

I. Shishkovsky, F. Missemer, I. Smurov

Research output: Contribution to journalConference articlepeer-review

63 Citations (Scopus)

Abstract

A direct laser metal deposition (DLMD) technology with co-axial powder injection is used to fabricate a complex functional graded structure (FGS) fabrication. The aim of the study is to demonstrate the possibility to produce intermetallic phases in the Ti-Al powder systems in the course of a single-step DMD process. Besides, relationships between the main laser cladding parameters and the intermetallic phase structures of the built-up objects have been studied. In our research we applied the optical microscopy, X-ray analysis, microhardness measurement and SEM with EDX analysis of the laser-fabricated intermetallics. The discussion of the mechanisms of Ti x Al y (x,y = 1.3) intermetallic transformations in exothermal reactions is also offered in the report.

Original languageEnglish
Pages (from-to)382-391
Number of pages10
JournalPhysics Procedia
Volume39
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event7th International Conference on Laser Assisted Net Shape Engineering. LANE 2012 - Furth, Germany
Duration: 12 Nov 201215 Nov 2012

Keywords

  • Direct metal deposition (DMD)
  • functional graded structures (FGS)
  • Ti Al y intermetallides

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