Relationship between the size and inner structure of particles of virgin and re-used MS1 maraging steel powder for additive manufacturing

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F20%3A43955599" target="_blank" >RIV/49777513:23210/20:43955599 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/1996-1944/13/4/956/htm" target="_blank" >https://www.mdpi.com/1996-1944/13/4/956/htm</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma13040956" target="_blank" >10.3390/ma13040956</a>

Result language

angličtina

Original language name

Relationship between the size and inner structure of particles of virgin and re-used MS1 maraging steel powder for additive manufacturing

Original language description

Additive manufacturing (AM) is today in the main focus – and not only in commercial production. Products with complex geometry can be built using various AM techniques, which include laser sintering of metal powder. Although the technique has been known for a quite long time, the impact of the morphology of individual powder particles on the process has not yet been adequately documented. This article presents a detailed microscopic analysis of virgin and reused powder particles of MS1 maraging steel. The metallographic observation was performed using a scanning electron microscope (SEM). The particle size of the individual powder particles was measured in the SEM and the particle surface morphology and its change in the reused powder were observed. Individual particles were analyzed in detail using an SEM with a focused ion beam (FIB) milling capability. The powder particles were gradually cut off in thin layers so that their internal structure, chemical element distribution, and possible internal defects and their shape could be monitored. Elemental distribution and phase distribution were analyzed using EDS and EBSD respectively. The findings have led to a better understanding and prediction of defects in additive-manufactured products. This could be helpful not just in the AM field but in any metal powder-based processes, such as metal injection molding, powder metallurgy, spray deposition processes, and others.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/EF18_069%2F0010040" target="_blank" >EF18_069/0010040: Research of additive technologies for future applications in machinery industry - RTI plus</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

Name of the periodical

Materials

ISSN

1996-1944

e-ISSN

—

Volume of the periodical

13

Issue of the periodical within the volume

4

Country of publishing house

CH - SWITZERLAND

Number of pages

14

Pages from-to

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UT code for WoS article

000520419300147

EID of the result in the Scopus database

2-s2.0-85082006443