Effect of powder flow rate and gas flow rate on the evolving properties of deposited Ti6al4v/Cu composites

Mutiu F. Erinosho, Esther T. Akinlabi, Sisa Pityana

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Citations (Scopus)

Abstract

Pure copper was deposited with Ti6Al4V alloy via laser metal deposition (LMD) process to produce Ti6Al4V/Cu composites. This paper reports the effect of powder flow rate (PFR) and gas flow rate (GFR) of laser metal deposited Ti6Al4V/Cu composites. The deposited samples were characterised through the evolving microstructure and microhardness. It was observed that the PFR and GFR have an influence on the percentage of porosity present in the samples. The higher the flow rates of the powder and the gas, the higher the degree of porosity and vice versa. The widmanstettan structures were observed to be finer as the flow rate reduces which in turn causes a decrease in the hardness values of the deposited composites. The hardness values varied between HV381.3 ± 60 and HV447.3 ± 49.

Original languageEnglish
Title of host publicationMechanical and Aerospace Engineering V
PublisherTrans Tech Publications Ltd
Pages177-182
Number of pages6
ISBN (Print)9783038352235
DOIs
Publication statusPublished - 2014
Event5th International Conference on Mechanical and Aerospace Engineering, ICMAE 2014 - Madrid, Spain
Duration: 18 Jul 201419 Jul 2014

Publication series

NameAdvanced Materials Research
Volume1016
ISSN (Print)1022-6680
ISSN (Electronic)1662-8985

Conference

Conference5th International Conference on Mechanical and Aerospace Engineering, ICMAE 2014
Country/TerritorySpain
CityMadrid
Period18/07/1419/07/14

Keywords

  • Copper
  • Gas flow rate
  • Microhardness
  • Microstructure
  • Porosity
  • Powder flow rate
  • Ti6Al4V

ASJC Scopus subject areas

  • General Engineering

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