Flow-induced defects during metal injection molding: Role of powder morphology

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F24%3A63580600" target="_blank" >RIV/70883521:28110/24:63580600 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/70883521:28610/24:63580600

Výsledek na webu

<a href="https://pubs.aip.org/aip/pof/article/36/8/083334/3309308/Flow-induced-defects-during-metal-injection" target="_blank" >https://pubs.aip.org/aip/pof/article/36/8/083334/3309308/Flow-induced-defects-during-metal-injection</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0219410" target="_blank" >10.1063/5.0219410</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Flow-induced defects during metal injection molding: Role of powder morphology

Popis výsledku v původním jazyce

Owing to the quality issues of highly filled compounds used in metal injection molding, the current research is focused on intercepting flow-induced inhomogeneities in multiphase compounds resulting from the segregation of metal powder particles from (typically) three/four-component polymer binders, resulting in an unacceptable porosity of the final sintered metal parts. A recently developed nondestructive approach for quantifying the extent of these flow-induced defects was employed to study the effect of the size and shape of water- and gas-atomized 17-4PH stainless steel powders on segregation. This method combines scanning electron microscopy/energy dispersive x-ray spectroscopy with an in-house analytical tool. The results show a higher tendency of coarser particles (D-50 of 20 mu m) for flow-induced defects, while an irregular shape (water-atomized particles) reduces this unwanted phenomenon.

Název v anglickém jazyce

Flow-induced defects during metal injection molding: Role of powder morphology

Popis výsledku anglicky

Owing to the quality issues of highly filled compounds used in metal injection molding, the current research is focused on intercepting flow-induced inhomogeneities in multiphase compounds resulting from the segregation of metal powder particles from (typically) three/four-component polymer binders, resulting in an unacceptable porosity of the final sintered metal parts. A recently developed nondestructive approach for quantifying the extent of these flow-induced defects was employed to study the effect of the size and shape of water- and gas-atomized 17-4PH stainless steel powders on segregation. This method combines scanning electron microscopy/energy dispersive x-ray spectroscopy with an in-house analytical tool. The results show a higher tendency of coarser particles (D-50 of 20 mu m) for flow-induced defects, while an irregular shape (water-atomized particles) reduces this unwanted phenomenon.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Physics of Fluids

ISSN

1070-6631

e-ISSN

1089-7666

Svazek periodika

36

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

—

Kód UT WoS článku

001295411000007

EID výsledku v databázi Scopus

2-s2.0-85201892910