Detail publikace
Analysis of fatigue processes of SLM materials by acoustic emission
KRATOCHVÍLOVÁ, V. VLAŠIC, F. MAZAL, P. PALOUŠEK, D. PANTĚLEJEV, L.
Anglický název
Analysis of fatigue processes of SLM materials by acoustic emission
Typ
článek v časopise ve Scopus, Jsc
Jazyk
en
Originální abstrakt
The paper gives an overview of selective laser melting (SLM) materials properties focusing on fatigue processes and their acoustic emission. The SLM technology belongs to rapid prototyping technologies and allows to quickly produce metal parts with complicated shapes. However, the mechanical properties of these materials are currently worse than those of conventionally produced materials. Acoustic emission method was used to compare fatigue behaviour of SLM and conventionally produced materials. Tested materials were aluminium alloy AW-2618A (AlCu2Mg1,5Ni), copper alloy AMPCOLOY® 944 (Cu7Ni2Si1Cr) and SLM materials with similar chemical composition. The results from all materials were compared. The fractographic and metallographic analysis were also conducted as a complement. In general, the fatigue life of SLM materials is worse than those of conventionally produced. The difference is much more significant in aluminium alloys than in copper alloys. It is caused by the big amount of internal defects and inhomogeneities in SLM materials.
Anglický abstrakt
The paper gives an overview of selective laser melting (SLM) materials properties focusing on fatigue processes and their acoustic emission. The SLM technology belongs to rapid prototyping technologies and allows to quickly produce metal parts with complicated shapes. However, the mechanical properties of these materials are currently worse than those of conventionally produced materials. Acoustic emission method was used to compare fatigue behaviour of SLM and conventionally produced materials. Tested materials were aluminium alloy AW-2618A (AlCu2Mg1,5Ni), copper alloy AMPCOLOY® 944 (Cu7Ni2Si1Cr) and SLM materials with similar chemical composition. The results from all materials were compared. The fractographic and metallographic analysis were also conducted as a complement. In general, the fatigue life of SLM materials is worse than those of conventionally produced. The difference is much more significant in aluminium alloys than in copper alloys. It is caused by the big amount of internal defects and inhomogeneities in SLM materials.
Klíčová slova anglicky
selective laser melting, fatigue, acoustic emission, additive technology
Vydáno
28.03.2018
Nakladatel
Indescience Enterprises Ltd.
Místo
United Kingdom
ISSN
1741-8410
Ročník
17
Číslo
3
Strany od–do
193–205
Počet stran
13
BIBTEX
@article{BUT140564,
author="Vendula {Skřivánková} and František {Vlašic} and Pavel {Mazal} and David {Paloušek} and Libor {Pantělejev},
title="Analysis of fatigue processes of SLM materials by acoustic emission",
year="2018",
volume="17",
number="3",
month="March",
pages="193--205",
publisher="Indescience Enterprises Ltd.",
address="United Kingdom",
issn="1741-8410"
}