A1 Journal article (refereed), original research

Fatigue characteristics of steels manufactured by selective laser melting


Open Access hybrid publication

Publication Details
Authors: Afkhami Shahriar, Dabiri Mohammad, Alavi S. Habib, Björk Timo, Salminen Antti
Publisher: Elsevier
Publication year: 2019
Language: English
Related Journal or Series Information: International Journal of Fatigue
Volume number: 122
Start page: 72
End page: 83
Number of pages: 12
ISSN: 0142-1123
eISSN: 1879-3452
JUFO-Level of this publication: 2
Open Access: Open Access hybrid publication

Abstract

Additive manufacturing is extending its influence on various modern
industries, including automobile, aerospace, aviation, and maritime.
This is specifically true for selective laser melting since it is
capable of manufacturing dense parts from metal and alloy powders. Thus,
the performance of materials processed by selective laser melting has
become the focus of many studies recently. However, their fatigue
endurance is yet to be understood comprehensively, and few studies have
been carried out on this topic thus far. The lack of understanding is
often attributed to the considerable number of manufacturing parameters,
which also hinders employing selective laser melting for typical
industrial applications. Among the various materials processed by
selective laser melting, steel is one of the most attractive ones to
manufacturers due to its broad range of properties and applications.
This paper aims to describe the studies carried out on the fatigue
properties of diverse types of steel manufactured by selective laser
melting. It also reviews the parameters which are recognized to be
effective on the fatigue behaviour of these steels. These parameters
include building orientation, heat treatment, surface quality, energy
density, and service condition of the final product. Recent studies on
selective laser melting along with the variety of its influential
parameters on the fatigue strength highlight a knowledge gap towards
reaching a comprehensive understanding of the fatigue behaviour of
steels manufactured by this process. Based on this fact, some of these
gaps are discussed as the potential topics for the future studies in the
field of additive manufacturing at the end of this review.


Last updated on 2019-04-03 at 11:43