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

Lerata Botsane Malefane, W du Preez, M Maringa

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.


Full Text:

PDF


DOI: http://dx.doi.org/10.7166/28-3-1861

Refbacks

  • There are currently no refbacks.




Copyright (c) 2017 Lerata Botsane Malefane


ISSN 2224-7890 (on-line) ; ISSN 1012-277X (print)


Powered by OJS and hosted by Stellenbosch University Library and Information Service since 2011.


Disclaimer:

This journal is hosted by the SU LIS on request of the journal owner/editor. The SU LIS takes no responsibility for the content published within this journal, and disclaim all liability arising out of the use of or inability to use the information contained herein. We assume no responsibility, and shall not be liable for any breaches of agreement with other publishers/hosts.

SUNJournals Help