EFFECT OF ADDITIVE PRODUCTION ON AISI 316L MATERIAL PROPERTIES

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25870807%3A_____%2F20%3AN0000003" target="_blank" >RIV/25870807:_____/20:N0000003 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.metalconference.eu/en/conference-proceedings-metal/" target="_blank" >https://www.metalconference.eu/en/conference-proceedings-metal/</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

EFFECT OF ADDITIVE PRODUCTION ON AISI 316L MATERIAL PROPERTIES

Popis výsledku v původním jazyce

This work is focused on the study of influence of additives manufacturing on material properties of AISI 316L steel. Comparison of the material properties of the plate produced by the selective laser melting (SLM) technology and the hot-rolled plate was performed not only on the results of tensile tests, but also on small punch tests, which is an evolving and promising testing method and will be implemented into standardized testing methods within EU soon. The determination of the yield point and the tensile strength from the results of small punch tests is based on the simple correlation among them. For wrought steels this correlation was verified but no such a relation is known for additive steels. Therefore, we tried to use this correlation to additive manufactured material and to compare the obtained results with the results of conventional tensile tests. The results of mechanical testing are complemented by microstructural investigation of both technologies, including fractographic analysis of fracture surfaces. The results of mechanical testing obtained in our research were added to the graph of the dependence of yield stress and tensile strength on the corresponding parameters of SPT tests. Although it seems that in the case of the yield stress dependence, the results of 3D printed material could complement the existing linear dependence valid for various austenitic steels, in the case of the correlation of the tensile strength it turned out that this is not possible. The results of the tensile strength obtained for 3D printed material lies significantly below the existing dependencies and have large variance of values which is related to the results of the metallographic investigation. It is not possible to use the current correlation and it is appropriate to obtain more results, e.g. from different technological conditions of 3D printing including HIP processing.

Název v anglickém jazyce

EFFECT OF ADDITIVE PRODUCTION ON AISI 316L MATERIAL PROPERTIES

Popis výsledku anglicky

This work is focused on the study of influence of additives manufacturing on material properties of AISI 316L steel. Comparison of the material properties of the plate produced by the selective laser melting (SLM) technology and the hot-rolled plate was performed not only on the results of tensile tests, but also on small punch tests, which is an evolving and promising testing method and will be implemented into standardized testing methods within EU soon. The determination of the yield point and the tensile strength from the results of small punch tests is based on the simple correlation among them. For wrought steels this correlation was verified but no such a relation is known for additive steels. Therefore, we tried to use this correlation to additive manufactured material and to compare the obtained results with the results of conventional tensile tests. The results of mechanical testing are complemented by microstructural investigation of both technologies, including fractographic analysis of fracture surfaces. The results of mechanical testing obtained in our research were added to the graph of the dependence of yield stress and tensile strength on the corresponding parameters of SPT tests. Although it seems that in the case of the yield stress dependence, the results of 3D printed material could complement the existing linear dependence valid for various austenitic steels, in the case of the correlation of the tensile strength it turned out that this is not possible. The results of the tensile strength obtained for 3D printed material lies significantly below the existing dependencies and have large variance of values which is related to the results of the metallographic investigation. It is not possible to use the current correlation and it is appropriate to obtain more results, e.g. from different technological conditions of 3D printing including HIP processing.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/EF17_049%2F0008399" target="_blank" >EF17_049/0008399: Rozvoj mezisektorové spolupráce RMTVC s aplikační sférou v oblasti výzkumu progresivních a inovací klasických kovových materiálů a technologií s využitím metod modelování</a><br>

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

Metal 2020 - 29th International Conference on Metallurgy and Materials Conference Proceedings

ISBN

978-80-87294-97-0

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

434-439

Název nakladatele

Tanger Ltd.

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

20. 5. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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