Effect of Powder Flow Rate and Gas Flow Rate on the Evolving Properties of Deposited Ti6Al4V/Cu Composites

Mutiu F. Erinosho; Esther Titilayo Akinlabi; Sisa Pityana

doi:10.4028/www.scientific.net/AMR.1016.177

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1016Effect of Powder Flow Rate and Gas Flow Rate on...

Effect of Powder Flow Rate and Gas Flow Rate on the Evolving Properties of Deposited Ti6Al4V/Cu Composites

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.

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Periodical:

Advanced Materials Research (Volume 1016)

Pages:

177-182

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1016.177

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Online since:

August 2014

Authors:

Mutiu F. Erinosho*, Esther Titilayo Akinlabi, Sisa Pityana

Keywords:

Copper, Gas Flow Rate, Microhardness, Microstructure, Porosity, Powder Flow Rate, Ti6Al4V

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