Comparison of microstructure and mechanical properties of additively manufactured and conventional maraging steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F20%3A43955336" target="_blank" >RIV/49777513:23210/20:43955336 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.scientific.net/DDF.405.133" target="_blank" >https://www.scientific.net/DDF.405.133</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/DDF.405.133" target="_blank" >10.4028/www.scientific.net/DDF.405.133</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Comparison of microstructure and mechanical properties of additively manufactured and conventional maraging steel

Popis výsledku v původním jazyce

Maraging steel is an iron-nickel steel alloy which achieves very good material properties like high toughness, hardness, good weldability, high strength and dimensional stability during heat treatment. In this work, maraging steel 18Ni300 was manufactured by selective laser melting. It is a method of additive manufacturing (AM) technology, which are produce prototypes and functional parts. 3D CAD data are used during this process to provide a digital model of the part and the high intensity laser beam creates the parts by melting fine metallic particles together layer by layer. Additively manufactured samples were further heat treated by solution annealing or precipitation hardening. The same heat treatment was applied also to samples of conventional maraging steel 18Ni300, for a comparison. Resulting microstructures were analysed by light and scanning electron microscopy and mechanical properties were obtained by hardness measurement and tensile test. By additively manufactured samples were observed cell microstructures with homogeneous chemical composition, while conventional maraging steel were consisted of martensitic microstructures. Resulting mechanical properties were very similar for both steel types after the same heat treatment. The values of strength were 839-900 MPa for samples heat treated by solution annealing, the samples after precipitation hardening had values 1577 – 1711 MPa.

Název v anglickém jazyce

Comparison of microstructure and mechanical properties of additively manufactured and conventional maraging steel

Popis výsledku anglicky

Maraging steel is an iron-nickel steel alloy which achieves very good material properties like high toughness, hardness, good weldability, high strength and dimensional stability during heat treatment. In this work, maraging steel 18Ni300 was manufactured by selective laser melting. It is a method of additive manufacturing (AM) technology, which are produce prototypes and functional parts. 3D CAD data are used during this process to provide a digital model of the part and the high intensity laser beam creates the parts by melting fine metallic particles together layer by layer. Additively manufactured samples were further heat treated by solution annealing or precipitation hardening. The same heat treatment was applied also to samples of conventional maraging steel 18Ni300, for a comparison. Resulting microstructures were analysed by light and scanning electron microscopy and mechanical properties were obtained by hardness measurement and tensile test. By additively manufactured samples were observed cell microstructures with homogeneous chemical composition, while conventional maraging steel were consisted of martensitic microstructures. Resulting mechanical properties were very similar for both steel types after the same heat treatment. The values of strength were 839-900 MPa for samples heat treated by solution annealing, the samples after precipitation hardening had values 1577 – 1711 MPa.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/LO1502" target="_blank" >LO1502: Rozvoj Regionálního technologického institutu</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

Defect and Diffusion Forum

ISBN

978-3-0357-3612-0

ISSN

1012-0386

e-ISSN

1662-9507

Počet stran výsledku

6

Strana od-do

133-138

Název nakladatele

Trans Tech Publication Ltd.

Místo vydání

Baech

Místo konání akce

Nový Smokovec, Slovensko

Datum konání akce

24. 4. 2019

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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