Microstructure evolution in Ti6Al4V alloy laser cladded with Premix Ti+TiB2 powders

M. O.H. Amuda, E. T. Akinlabi, M. Moolla

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Microstructure evolution in relation to the geometrical properties of Ti6Al4V treated with laser deposited premix Ti/TiB2 powders is presented. The microstructural characterisation is reinforced with X-ray diffractometry and scanning electron microscopy to identify the predominant phases responsible for the change inmicrohardness values of the cladded alloy. Geometrical analysis indicates that the aspect ratio is outside the range specified for the production of defect free claddings while the degree of dilution of XYZ ensured a thin interfacial layer which assists in avoiding crack in the cladded layer. A maximum microhardness value of WXY is achieved in the cladded layer which is about five folds greater than that of the substrate; and this is attributed to the presence of hard undissolved TiB2 particles in the cladded alloy.

Original languageEnglish
Pages (from-to)763-773
Number of pages11
JournalMaterials Today: Proceedings
Issue number2
Publication statusPublished - 2017


  • Aspect ratio
  • bead geometry
  • dilution
  • microhardness
  • microstructure evolution
  • pre-mix powders
  • scan speed

ASJC Scopus subject areas

  • General Materials Science


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