Detail publikace

STUDY OF FATIGUE PROCESSES OF SELECTIVE LASER MELTING AND CONVENTIONAL PRODUCED MATERIALS

KRATOCHVÍLOVÁ, V. VLAŠIC, F. MAZAL, P.

Originální název

STUDY OF FATIGUE PROCESSES OF SELECTIVE LASER MELTING AND CONVENTIONAL PRODUCED MATERIALS

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

The main aim of the study is to compare fatigue processes and its acoustic emission (AE) signal of conventional produced material and material produced by selective laser melting (SLM) technology. The SLM offers the same benefits as the rest of the rapid prototyping technologies, the most important is big range of produced shapes, but without expensive moulds, cores or huge material waste. However the mechanical properties of these materials are currently worse than those of conventionally produced materials. AE method was used to get new information about fatigue damage of SLM materials. This study summarizes results from bending fatigue tests of reference Al alloy AW-2618A (AlCu2Mg1,5Ni) and SLM material with comparable chemical composition. Acquired AE and fatigue data from both materials were compared. The fractographic and metallographic analysis were also conducted as complement. Internal defects and inhomogenities in SLM materials cause different fracture behaviour than we can see at conventional materials. Differences in fatigue behaviour of SLM materials are strongly reflected in AE signal. The results may be used to improve the production of SLM materials in order to get better material characteristics. AE data helps to understand the fatigue behaviour of SLM materials in order to predict crack initiation.

Klíčová slova

selective laser melting; acoustic emission method; fatigue; crack; Al alloy

Autoři

KRATOCHVÍLOVÁ, V.; VLAŠIC, F.; MAZAL, P.

Vydáno

7. 9. 2016

Nakladatel

VUTIUM Brno, Brno University of Technology

Místo

Brno

ISBN

978-80-214-5386-9

Kniha

32nd European Conference on Acoustic Emission Testing

Edice

1st edition

Strany od

263

Strany do

270

Strany počet

8

URL

http://cndt.cz/ewgae2016/

BibTex

@inproceedings{BUT129960,
  author="Vendula {Skřivánková} and František {Vlašic} and Pavel {Mazal}",
  title="STUDY OF FATIGUE PROCESSES OF SELECTIVE LASER MELTING AND CONVENTIONAL PRODUCED MATERIALS",
  booktitle="32nd European Conference on Acoustic Emission Testing",
  year="2016",
  series="1st edition",
  pages="263--270",
  publisher="VUTIUM Brno, Brno University of Technology",
  address="Brno",
  isbn="978-80-214-5386-9",
  url="http://cndt.cz/ewgae2016/"
}