Effect of build direction on the microhardness and dry sliding wear behaviour of laser additive manufactured Ti-6Al-4V

Chandramohan Palanisamy, Shepherd Bhero, Babatunde Abiodun Obadele, Peter Apata Olubambi

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)

Abstract

This work presents micro structural and tribological behaviour of Ti-6Al-4V fabricated by direct metal laser sintering technique. The laser sintering was carried out at laser power of 170 W in an argon atmosphere. The microstructure, phase composition, micro hardness and wear study were determined. It has been found that specimens built vertically (VB) contained vanadium carbide (VC) and titanium oxide (TiO) phases in the present of α and β phases resulting in higher micro hardness as compared to horizontal build (HB) specimens. Wear volume loss was determined in a dry sliding wear configuration. An increase in applied load from 5 N to 25 N resulted in an increment in wear volume loss. The presence of delamination could be observed on the worn surface of HB specimen.

Original languageEnglish
Pages (from-to)397-402
Number of pages6
JournalMaterials Today: Proceedings
Volume5
Issue number1
DOIs
Publication statusPublished - 2018

Keywords

  • Hardness
  • Laser
  • Sintering
  • Titanium
  • Wear

ASJC Scopus subject areas

  • General Materials Science

Fingerprint

Dive into the research topics of 'Effect of build direction on the microhardness and dry sliding wear behaviour of laser additive manufactured Ti-6Al-4V'. Together they form a unique fingerprint.

Cite this