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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F16%3APU121137" target="_blank" >RIV/00216305:26210/16:PU121137 - isvavai.cz</a>

Výsledek na webu

<a href="http://cndt.cz/ewgae2016/" target="_blank" >http://cndt.cz/ewgae2016/</a>

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

32nd European Conference on Acoustic Emission Testing

ISBN

978-80-214-5386-9

ISSN

—

e-ISSN

—

Počet stran výsledku

8

Strana od-do

263-270

Název nakladatele

VUTIUM Brno, Brno University of Technology

Místo vydání

Brno

Místo konání akce

Praha

Datum konání akce

7. 9. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—