Fatigue Behaviour Evaluation of Additively and Conventionally Produced Materials by Acoustic Emission Method

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F17%3APU125057" target="_blank" >RIV/00216305:26210/17:PU125057 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S2452321617303001?via%3Dihub" target="_blank" >http://www.sciencedirect.com/science/article/pii/S2452321617303001?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.prostr.2017.07.187" target="_blank" >10.1016/j.prostr.2017.07.187</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fatigue Behaviour Evaluation of Additively and Conventionally Produced Materials by Acoustic Emission Method

Popis výsledku v původním jazyce

Additive manufacturing of metals is today one of the most growing fields in materials research. Selective laser melting (SLM) allows to produce metal parts with complicated shapes, but the quality of produced material is relatively low (in compare with conventionally produced materials). The main aims of latest studies is to improve materials properties and reach the same or better quality. Presented paper shows the comparison of fatigue behavior of SLM and conventional material using copper (Cu7.2Ni1.8Si1Cr) and aluminum (AlCu2Mg1.5Ni and AlSi10Mg) alloys. SLM and standard material samples were subjected to bending fatigue tests which were supplemented by acoustic emission (AE) measurement and fractography analysis. The results from AE measurement allows to analyze fatigue behavior, determine different fatigue stages and compare fatigue behavior of SLM and standard material in more detail. The results show that the main difference between fatigue behavior of SLM and standard material is not only in total fatigue life (the SLM material has significantly worse fatigue resistance), but mainly in the length of fatigue stages and in mechanism of crack development. As we expected, the fatigue resistance of SLM is strongly affected by amount of production defects.

Název v anglickém jazyce

Fatigue Behaviour Evaluation of Additively and Conventionally Produced Materials by Acoustic Emission Method

Popis výsledku anglicky

Additive manufacturing of metals is today one of the most growing fields in materials research. Selective laser melting (SLM) allows to produce metal parts with complicated shapes, but the quality of produced material is relatively low (in compare with conventionally produced materials). The main aims of latest studies is to improve materials properties and reach the same or better quality. Presented paper shows the comparison of fatigue behavior of SLM and conventional material using copper (Cu7.2Ni1.8Si1Cr) and aluminum (AlCu2Mg1.5Ni and AlSi10Mg) alloys. SLM and standard material samples were subjected to bending fatigue tests which were supplemented by acoustic emission (AE) measurement and fractography analysis. The results from AE measurement allows to analyze fatigue behavior, determine different fatigue stages and compare fatigue behavior of SLM and standard material in more detail. The results show that the main difference between fatigue behavior of SLM and standard material is not only in total fatigue life (the SLM material has significantly worse fatigue resistance), but mainly in the length of fatigue stages and in mechanism of crack development. As we expected, the fatigue resistance of SLM is strongly affected by amount of production defects.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20306 - Audio engineering, reliability analysis

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

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

2nd International Conference on Structural Integrity, ICSI 2017, 4-7 September 2017

ISBN

—

ISSN

2452-3216

e-ISSN

—

Počet stran výsledku

8

Strana od-do

393-400

Název nakladatele

Elsevier B.V.

Místo vydání

Funchal, Madeira, Portugal

Místo konání akce

Funchal

Datum konání akce

4. 9. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000419177800052