Mesoscale modelling of short crack initiation in metallic selective laser melting microstructures

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    1 Citation (Scopus)

    Abstract

    Selective Laser Melting (SLM), a type of Additive Manufacturing (AM), is versatile manufacturing method especially for rapid prototyping. One big issue with the method is components material integrity. Various types of defects can be left inside the material after sintering process. These defects often have derogative effect on materials fatigue life time. In this paper different material defect types are identified from Scanning Electron Microscope (SEM) images. Defected areas are transferred to Finite Element Models (FEM). Simple uniaxial tension test is performed to the models and results are incorporated into low cycle fatigue life time prediction. Residual stresses play also significant role in material endurance. Simple process model in created in order to predict residual stress levels.
    Original languageEnglish
    Title of host publicationEURO PM2015 congress proceedings
    PublisherEuropean Power Metallurgy Association EPMA
    ISBN (Electronic)978-1-899072-47-7
    Publication statusPublished - 2015
    MoE publication typeA4 Article in a conference publication
    EventEuro PM2015 Power Metallurgy Congress and Exhibition, - Reims, France
    Duration: 4 Oct 20157 Oct 2015

    Conference

    ConferenceEuro PM2015 Power Metallurgy Congress and Exhibition,
    Abbreviated titleEuro PM2015
    CountryFrance
    CityReims
    Period4/10/157/10/15

    Fingerprint

    Crack initiation
    Melting
    Microstructure
    Lasers
    Fatigue of materials
    Defects
    Residual stresses
    3D printers
    Rapid prototyping
    Durability
    Electron microscopes
    Sintering
    Scanning

    Keywords

    • ProperTune

    Cite this

    @inproceedings{c3cf112bc58c45c6a1c5e4cc027f77d8,
    title = "Mesoscale modelling of short crack initiation in metallic selective laser melting microstructures",
    abstract = "Selective Laser Melting (SLM), a type of Additive Manufacturing (AM), is versatile manufacturing method especially for rapid prototyping. One big issue with the method is components material integrity. Various types of defects can be left inside the material after sintering process. These defects often have derogative effect on materials fatigue life time. In this paper different material defect types are identified from Scanning Electron Microscope (SEM) images. Defected areas are transferred to Finite Element Models (FEM). Simple uniaxial tension test is performed to the models and results are incorporated into low cycle fatigue life time prediction. Residual stresses play also significant role in material endurance. Simple process model in created in order to predict residual stress levels.",
    keywords = "ProperTune",
    author = "Tom Andersson and Anssi Laukkanen and Tatu Pinomaa and Antero Jokinen and Antti Vaajoki and Tarja Laitinen",
    year = "2015",
    language = "English",
    booktitle = "EURO PM2015 congress proceedings",
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    Andersson, T, Laukkanen, A, Pinomaa, T, Jokinen, A, Vaajoki, A & Laitinen, T 2015, Mesoscale modelling of short crack initiation in metallic selective laser melting microstructures. in EURO PM2015 congress proceedings. European Power Metallurgy Association EPMA, Euro PM2015 Power Metallurgy Congress and Exhibition, , Reims, France, 4/10/15.

    Mesoscale modelling of short crack initiation in metallic selective laser melting microstructures. / Andersson, Tom; Laukkanen, Anssi; Pinomaa, Tatu; Jokinen, Antero; Vaajoki, Antti; Laitinen, Tarja.

    EURO PM2015 congress proceedings. European Power Metallurgy Association EPMA, 2015.

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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    T1 - Mesoscale modelling of short crack initiation in metallic selective laser melting microstructures

    AU - Andersson, Tom

    AU - Laukkanen, Anssi

    AU - Pinomaa, Tatu

    AU - Jokinen, Antero

    AU - Vaajoki, Antti

    AU - Laitinen, Tarja

    PY - 2015

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    AB - Selective Laser Melting (SLM), a type of Additive Manufacturing (AM), is versatile manufacturing method especially for rapid prototyping. One big issue with the method is components material integrity. Various types of defects can be left inside the material after sintering process. These defects often have derogative effect on materials fatigue life time. In this paper different material defect types are identified from Scanning Electron Microscope (SEM) images. Defected areas are transferred to Finite Element Models (FEM). Simple uniaxial tension test is performed to the models and results are incorporated into low cycle fatigue life time prediction. Residual stresses play also significant role in material endurance. Simple process model in created in order to predict residual stress levels.

    KW - ProperTune

    M3 - Conference article in proceedings

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    PB - European Power Metallurgy Association EPMA

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