CHARACTERIZING THE EFFECT OF POST WELD HEAT TREATMENT ON THE MECHANICAL PROPERTIES OF LASER BEAM WELDED ADDITIVE MANUFACTURED TI6AL4V

Esther T. Akinlabi, Peter Omoniyi, Tien Chien Jen, Rasheedat M. Mahamood, Frederick Mwema, Stephen A. Akinlabi, Cynthia S. Abima

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

Abstract

The Ti6Al4V alloys are finding various industrial applications due to their attractive attributes, which can be enhanced via heat-treatment processes. In this study, titanium sheets (Ti6Al4V) were manufactured through laser metal deposition (LMD) using Ti6Al4V powder of particle sizes between 45-90 µm. The build parameters used are optimized at a laser power of 400 W, powder feed rate of 2.4 g/min, hatch spacing of 0.9652 mm, and scanning rotated at 90° between successive layers. The built block is sliced using a wire-electric discharge machine (EDM) into sheets of 2 mm thickness. The resulting blocks were joined using the butt configuration through laser beam welding technology. Post-weld heat treatments were conducted on the welds above the β transus temperature of 995°C. Material characterizations of the evolving properties were conducted using Optical Microscopy, Vickers microhardness, and tensile testing. The investigations show that the heat-treated samples have enhanced properties and can be recommended. The outcome of this research is significant as it gives insight into the optimization of laser welding and post-weld heat treatment parameters of Titanium Alloy Grade 5 for industrial applications.

Original languageEnglish
Title of host publicationAdvanced Materials
Subtitle of host publicationDesign, Processing, Characterization and Applications; Advances in Aerospace Technology
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791887615
DOIs
Publication statusPublished - 2023
Externally publishedYes
EventASME 2023 International Mechanical Engineering Congress and Exposition, IMECE 2023 - New Orleans, United States
Duration: 29 Oct 20232 Nov 2023

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume4

Conference

ConferenceASME 2023 International Mechanical Engineering Congress and Exposition, IMECE 2023
Country/TerritoryUnited States
CityNew Orleans
Period29/10/232/11/23

Keywords

  • Additive Manufacturing
  • Heat treatment
  • Laser Metal Deposition
  • Laser Welding
  • Microstructure

ASJC Scopus subject areas

  • Mechanical Engineering

Fingerprint

Dive into the research topics of 'CHARACTERIZING THE EFFECT OF POST WELD HEAT TREATMENT ON THE MECHANICAL PROPERTIES OF LASER BEAM WELDED ADDITIVE MANUFACTURED TI6AL4V'. Together they form a unique fingerprint.

Cite this