Influence of laser power in direct laser deposition on the proportion of ferrite and austenite in duplex steel saf2507

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F20%3AN0000040" target="_blank" >RIV/26316919:_____/20:N0000040 - isvavai.cz</a>

Result on the web

<a href="https://www.confer.cz/metal/2020/read/3517-influence-of-laser-power-in-direct-energy-deposition-on-the-proportion-of-ferrite-and-austenite-in-duplex-steel-saf2507.pdf" target="_blank" >https://www.confer.cz/metal/2020/read/3517-influence-of-laser-power-in-direct-energy-deposition-on-the-proportion-of-ferrite-and-austenite-in-duplex-steel-saf2507.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.37904/metal.2020.3517" target="_blank" >10.37904/metal.2020.3517</a>

Result language

angličtina

Original language name

Influence of laser power in direct laser deposition on the proportion of ferrite and austenite in duplex steel saf2507

Original language description

This work focuses on the effect of laser power on the proportion of austenite and ferrite in duplex steel SAF 2507. Duplex steels combine the advantages of ferritic and austenitic steels, preferably with an optimal proportion of austenite and ferrite. The effect of laser beam power in direct laser deposition on this proportion of microstructure constituents was studied. The proportion also has an impact on mechanical and corrosion properties, which are essential for this type of steel. Duplex steels are often used in corrosive environments and their mechanical properties and corrosion resistance depend on the proportion of austenite and ferrite. Direct laser deposition (DED) was used for making samples. DED operates on the principle of laser melting of a powder which is carried by the shielding gas into a nozzle. This technology can be used as an additive manufacturing process as well as for surface repairs and modification of components. The samples in this experimental study were printed using several different fixed outputs and the same intervals. One sample was printed using the machine's automatic mode. Microstructural analysis was performed using EBSD, EDS and light microscopy. The proportion of austenite and ferrite was measured by X-ray diffraction (XRD analysis). The differences in the proportion of ferrite and austenite were minimal, on the order of several percentage points.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/EF17_048%2F0007350" target="_blank" >EF17_048/0007350: Pre-Application Research of Functionally Graduated Materials by Additive Technologies</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

978-808729497-0

ISSN

2694-9296

e-ISSN

—

Number of pages

6

Pages from-to

539-544

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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