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Effect of powder milling on sintering behavior and monotonic and cyclic mechanical properties of Mo and Mo-Si lattices produced by direct ink writing

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F23%3APU150155" target="_blank" >RIV/00216305:26620/23:PU150155 - isvavai.cz</a>

  • Result on the web

    <a href="https://www.sciencedirect.com/science/article/pii/S2238785423024511" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2238785423024511</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.jmrt.2023.10.002" target="_blank" >10.1016/j.jmrt.2023.10.002</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Effect of powder milling on sintering behavior and monotonic and cyclic mechanical properties of Mo and Mo-Si lattices produced by direct ink writing

  • Original language description

    Molybdenum is a refractory metal regarded as a promising basis for producing high-temperature components. However, the potential of manufacturing molybdenum-based structures by direct ink writing (DIW) has not been explored. In this study, three-dimensional porous molybdenum (Mo) and molybdenum-silicon (Mo-Si) composite lattices were fabricated using DIW with non-milled and milled powders. The effects of Mo powder morphology (resulting from milling) and chemical composition (alloying Mo with 3 and 10 wt% of Si) on the microstructure, phase composition, and static and cyclic compression properties at room temperature were investigated. Lattices fabricated from commercial spherical Mo powder exhibited the highest intra-filament porosity. Conversely, lattices fabricated from milled Mo powder were denser and had higher compressive strength, offset stress, and quasi-elastic gradient. Alloying Mo with Si during sintering resulted in composite lattices with Mo thorn Mo3Si microstructure. A low content of Mo3Si slightly decreased monotonic compression properties but did not affect the cyclic compression response compared to Mo lattices made from milled powder. In contrast, a high content of Mo3Si produced quasi-brittle lattices with reduced compressive strength and increased damage accumulation during cyclic loading. The cyclic behavior of all lattices was characterized by a ratcheting-dominated stress-strain response. Lattices fabricated from milled Mo and milled Mo-3 wt.%Si powders demonstrated superior performance compared to those fabricated from commercial spherical Mo and milled Mo-10 wt%Si powders. The results suggest that using milled powders can enhance the mechanical reliability and promote the use of DIW as preferred additive manufacturing technology for the fabrication of Mo-Si composite lattices. (c) 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

  • 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

    20501 - Materials engineering

Result continuities

  • Project

    <a href="/en/project/LTC20068" target="_blank" >LTC20068: New materials for emerging energy technologies</a><br>

  • Continuities

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

Others

  • Publication year

    2023

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Journal of Materials Research and Technology

  • ISSN

    2238-7854

  • e-ISSN

    2214-0697

  • Volume of the periodical

    27

  • Issue of the periodical within the volume

    10

  • Country of publishing house

    BR - BRAZIL

  • Number of pages

    15

  • Pages from-to

    2475-2489

  • UT code for WoS article

    001105470800001

  • EID of the result in the Scopus database

    2-s2.0-85174149540