HIGH CYCLE FATIGUE PROPERTIES OF AS-BUILT TI6AL4V (ELI) PRODUCED BY DIRECT METAL LASER SINTERING

Authors

  • Lerata Botsane Malefane Department of Mechanical and Mechatronic Engineering, Central University of Technology, Free State, South Africa
  • W du Preez Department of Mechanical and Mechatronic Engineering, Central University of Technology, Free State, South Africa
  • M Maringa Department of Mechanical and Mechatronic Engineering, Central University of Technology, Free State, South Africa

DOI:

https://doi.org/10.7166/28-3-1861

Abstract

The high cycle fatigue (HCF) properties of direct metal laser sintering (DMLS) of Ti6Al4V (ELI) in three mutually orthogonal build directions were investigated by cycling specimens under load control, in a tension-tension fatigue testing machine. Semi-log graphs of maximum stress (S) against life (N) of the specimens produced along the respective three build directions were plotted, and the displayed endurance limits compared. Optical and scanning electron microscopy were used to compare and analyse the crack initiation and propagation characteristics of the specimens. The influence of the build direction on the fatigue properties of the tested specimens is discussed here.

Downloads

Download data is not yet available.

Author Biography

Lerata Botsane Malefane, Department of Mechanical and Mechatronic Engineering, Central University of Technology, Free State, South Africa

The author was enrolled for an M Eng (Mechanical Engineering) degree in the Department of Mechanical and Mechatronics Engineering, Central University of Technology Free State Bloemfontein, South Africa

Downloads

Published

2017-11-22

How to Cite

Malefane, L. B., du Preez, W., & Maringa, M. (2017). HIGH CYCLE FATIGUE PROPERTIES OF AS-BUILT TI6AL4V (ELI) PRODUCED BY DIRECT METAL LASER SINTERING. The South African Journal of Industrial Engineering, 28(3), 188–199. https://doi.org/10.7166/28-3-1861

Issue

Vol. 28 No. 3 (2017)

Section

General Articles

License

Authors who publish in the Journal agree to the following terms:
  1. Authors retain copyright and grant the Journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this Journal.
  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the Journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this Journal.