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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/EF18_069%2F0010040" target="_blank" >EF18_069/0010040: Výzkum aditivních technologií pro budoucí uplatnění ve strojírenské praxi - RTI plus</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 periodika

Materials

ISSN

1996-1944

e-ISSN

—

Svazek periodika

13

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

14

Strana od-do

—

Kód UT WoS článku

000520419300147

EID výsledku v databázi Scopus

2-s2.0-85082006443