EFFECT OF ADDITIVE PRODUCTION ON AISI 316L MATERIAL PROPERTIES

Result code in 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>

Result on the web

<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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Result language

angličtina

Original language name

EFFECT OF ADDITIVE PRODUCTION ON AISI 316L MATERIAL PROPERTIES

Original language description

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.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/EF17_049%2F0008399" target="_blank" >EF17_049/0008399: Development of inter-sector cooperation of RMSTC with the application sphere in the field of advanced research and innovations of classical metal materials and technologies using modelling methods</a><br>

Continuities

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

Publication year

2020

Confidentiality

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

Article name in the collection

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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Number of pages

6

Pages from-to

434-439

Publisher name

Tanger Ltd.

Place of publication

Ostrava

Event location

Brno

Event date

May 20, 2020

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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