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Influence of the thermal history on the phase composition of laser directed energy deposited Ti-8.5 wt% Mo alloy

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F22%3AN0000024" target="_blank" >RIV/26316919:_____/22:N0000024 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216208:11320/22:10446613

  • Result on the web

    <a href="https://doi.org/10.1016/j.matdes.2022.111049" target="_blank" >https://doi.org/10.1016/j.matdes.2022.111049</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.matdes.2022.111049" target="_blank" >10.1016/j.matdes.2022.111049</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Influence of the thermal history on the phase composition of laser directed energy deposited Ti-8.5 wt% Mo alloy

  • Original language description

    Ti-8.5Mo (wt%) alloy was prepared by laser directed energy deposition (L-DED) from the mixture of cp-Ti and Ti-15Mo powder in the ratio of 50:50 using constant laser power of 600 W. Microstructure of as -printed material was characterized by microhardness mapping, light and scanning electron microscopy employing EDS technique and local X-ray diffraction measurements. In particular, the influence of the baseplate preheating to 500 ? on microstructure evolution was determined. The microstructure of the as-deposited samples consists of columnar grains orientated parallel to the building direction. Volume fraction of alpha, beta and omega phases, and consequently also microhardness, vary for different positions within the sample due to different thermal history during the printing process. Bottom part of the sample contains increased fraction of alpha phase due to longer exposure to temperatures favorable for alpha phase precipitation. Preheating of the baseplate provides additional thermodynamic stabilization of the alpha phase. Numerical model, predicting the temperature evolution in each layer of the sample during deposition and consequently the ultimate phase composition, was developed. The results obtained from the model are consistent with the experimentally observed phase transformations. CO 2022 The Author(s). Published by Elsevier Ltd.

  • 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

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

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

Others

  • Publication year

    2022

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    MATERIALS & DESIGN

  • ISSN

    0264-1275

  • e-ISSN

    1873-4197

  • Volume of the periodical

    222

  • Issue of the periodical within the volume

    OCTOBER 2022

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    12

  • Pages from-to

    nestránkováno

  • UT code for WoS article

    000863299700001

  • EID of the result in the Scopus database

    2-s2.0-85136456402