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Variation in particle size fraction to optimize metal injection molding of water atomized 17–4PH stainless steel feedstocks

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F20%3A63526119" target="_blank" >RIV/70883521:28110/20:63526119 - isvavai.cz</a>

  • Alternative codes found

    RIV/70883521:28610/20:63526119

  • Result on the web

    <a href="https://www.sciencedirect.com/science/article/pii/S0032591020303442" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0032591020303442</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.powtec.2020.04.058" target="_blank" >10.1016/j.powtec.2020.04.058</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Variation in particle size fraction to optimize metal injection molding of water atomized 17–4PH stainless steel feedstocks

  • Original language description

    This work reports on an essential effect of rather slight size differences in water atomized 17–4PH stainless steel powder on resulting microstructure and dimensional tolerances of metal injection molding (MIM) parts. The powders of round to irregular shapes prepared in three different powder volume fractions were admixed into the paraffin wax/HDPE (50/50) binder in a double sigma mixer. After determination of critical solid loading, the rheological, molding, and sintering performance of 66 vol% solid loading feedstocks was tested on a complex-shaped MIM component. The slight differences in size fractions are reflected also in the powder shape, which was quantified through sphericity factor and aspect ratio by dynamic image analysis. The results indicate an increase in viscosity, flow instability and injection pressure, lower sintered density with enhanced dimensional deformations for feedstocks having higher amount of coarser (10–20) μm fraction accompanied with higher shape irregularity determined from sphericity factor and aspect ratio.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Result continuities

  • Project

    <a href="/en/project/LO1504" target="_blank" >LO1504: Centre of Polymer Systems Plus</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2020

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Powder Technology

  • ISSN

    0032-5910

  • e-ISSN

  • Volume of the periodical

    368

  • Issue of the periodical within the volume

    Neuveden

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    7

  • Pages from-to

    130-136

  • UT code for WoS article

    000540731900012

  • EID of the result in the Scopus database

    2-s2.0-85083874870