2016
DOI: 10.1016/j.matdes.2016.05.041
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Abstract: Selective laser melting (SLM) is being widely utilised to fabricate intricate structures used in various industries. Widening the range of applications that can benefit from such promising technology requires validating SLM parts in load bearing applications. Recent studies have mainly focussed on static loading, with minor attention to cyclic loading despite its vital importance in many applications.In this work, the fatigue performance of SLM AlSi10Mg was investigated considering the effects of surface quali… Show more

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Cited by 244 publications
(124 citation statements)
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“…Likewise with convectional dense parts, the fatigue properties of lattice structures are strongly influenced by their microstructure (grain size, texture, phase state) and surface roughness. The layer-by-layer material deposition and localized melting phenomena, which take place during AM processing, result in a strong material anisotropy and in a high level of residual stresses, both effects strongly impacting the fatigue resistance of AM-built components [11,[18][19][20][21]. Moreover, porosity and surface defects induced by the process are prone to trigger failure mechanisms like crack nucleation or plastic collapse.…”
Section: Introductionmentioning
confidence: 99%
“…Likewise with convectional dense parts, the fatigue properties of lattice structures are strongly influenced by their microstructure (grain size, texture, phase state) and surface roughness. The layer-by-layer material deposition and localized melting phenomena, which take place during AM processing, result in a strong material anisotropy and in a high level of residual stresses, both effects strongly impacting the fatigue resistance of AM-built components [11,[18][19][20][21]. Moreover, porosity and surface defects induced by the process are prone to trigger failure mechanisms like crack nucleation or plastic collapse.…”
Section: Introductionmentioning
confidence: 99%
“…The principal chemical composition of the constituent material of AlSi10Mg powder contains Al 88.9 wt%, Si 10.7 wt%, Mg 0.5 wt%, and the powder particle size ranges from 15 μm to 110 μm. The optimised manufacturing process described in [20,21] was adopted to produce parent material with minimal porosity. The specimens were manufactured under argon atmosphere with an oxygen content less than 0.09%.…”
Section: Manufacturingmentioning
confidence: 99%
“…The latter implies that the build orientation may not influence the fatigue life if the specimens are solution treated. [4,[6][7][8]. 'Rough' and 'Machined' refer to the surface condition, and 'as-built' and 'T6' refer to the heat treatment condition.…”
Section: Introductionmentioning
confidence: 99%
“…The results showed that solution treatment followed by T6 heat treatment reduced the tensile strength compared to the as-built (no heat treatment) and increased the fatigue resistance. Aboulkhair et al [7] expanded the study by investigating differences between machined and as-built surfaces in addition to heat treatment. They showed that machining the surface did not increase the fatigue life at high stress levels, yet it increased the fatigue life at low stresses (high cycle fatigue).…”
Section: Introductionmentioning
confidence: 99%
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