The influence of processing parameters on strut diameter and internal porosity in Ti6Al4V cellular structure

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Authors

Colleges, School and Institutes

External organisations

  • American University in Cairo
  • The Advanced Materials Processing Lab. (AMPLAB)

Abstract

Ti6Al4V cellular structures were fabricated by selective laser melting using a wide range of processing parameters. Optical and scanning electron microscopy were employed to analyze the influence of laser power and scan speed on the strut diameter and the internal porosity. Strut diameter was found to be dependent on the input energy. It increased with increasing the input energy density. As for the internal porosity, at low laser power and high scan speed discontinuity within the struts and defects with entrapped non molten powder particles were observed. While at intermediate laser power and scan speed irregular defects caused by lack of fusion were formed. At high laser power and low scan speed large pores were about 70µm were formed.

Details

Original languageEnglish
Title of host publicationMaterials Science and Technology 2018, MS and T 2018
Publication statusPublished - 1 Jan 2019
EventMaterials Science and Technology 2018, MS and T 2018 - Columbus, United States
Duration: 14 Oct 201818 Oct 2018

Conference

ConferenceMaterials Science and Technology 2018, MS and T 2018
CountryUnited States
CityColumbus
Period14/10/1818/10/18

Keywords

  • Lattice structure, Porosity, Processing parameters, Selective laser melting