Effective interface model for design and tailoring of wc-co microstructures

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

    Abstract

    Interface structures are a key feature in developing modern composite material solutions with ever improved performance. To that effect, we present a nano-microstructural modeling approach for the WC-Co system which can include the interface structures of WC-Co and various other phases present in the microstructure, utilising a methodology which combines imaging based and synthetically generated nano-microstructures into an effective interface model for predicting the behavior and properties of the resulting composite material. The effective model comprises of a local model of the WC-Co interface interacting with a larger scale model of the WC-Co microstructure. The interface model consists of either layered modeling of the different phase structures (phases of WC, films due to doping of cemented carbides, binder phase and microstructure, segregated and carbide structures within the binder such as gamma or eta phases, oriented and/or gradient structures etc.) or utilization of locally defined spatial morphologies and properties in three-dimensional models. In this current work, two approaches are made available and demonstrated. Firstly, commonly identified interface structures can be assessed with the methodology via creation of synthetic carbide-carbide, carbide-binder or related microstructural characteristics. Secondly, the use of phase field analysis generated interface solute concentrations are used as an input from accompanying work by the authors. The results provide a linkage between the interface character of cemented carbide microstructures and their properties, for example with respect to compressive strength, fracture toughness and wear resistance. The results demonstrate the obvious importance of interface character and properties with respect to resulting material properties, and describe a toolset towards systematic inclusion of these features in a materials-by-design type of material development. The methodology presents a multiscale formalism for carrying out performance and application driven evaluation and tailoring of composite interfaces and mesostructures, carried out on the basis of the emerging engineering material properties.

    Original languageEnglish
    Title of host publicationProceedings Euro PM 2015
    Subtitle of host publicationInternational Power Metallurgy Congress and Exhibition
    PublisherEuropean Power Metallurgy Association EPMA
    ISBN (Electronic)978-189907247-7
    Publication statusPublished - 2015
    MoE publication typeA4 Article in a conference publication
    EventInternational Power Metallurgy Congress and Exhibition, Euro PM 2015 - Reims, France
    Duration: 4 Oct 20157 Oct 2015

    Conference

    ConferenceInternational Power Metallurgy Congress and Exhibition, Euro PM 2015
    CountryFrance
    CityReims
    Period4/10/157/10/15

    Fingerprint

    Carbides
    microstructure
    Microstructure
    carbides
    Binders
    Materials properties
    Composite materials
    methodology
    composite materials
    Phase structure
    Compressive strength
    Wear resistance
    Fracture toughness
    Doping (additives)
    compressive strength
    Imaging techniques
    scale models
    three dimensional models
    fracture strength
    wear resistance

    Cite this

    Laukkanen, A., Andersson, T., Pinomaa, T., & Holmberg, K. (2015). Effective interface model for design and tailoring of wc-co microstructures. In Proceedings Euro PM 2015: International Power Metallurgy Congress and Exhibition European Power Metallurgy Association EPMA.
    Laukkanen, Anssi ; Andersson, Tom ; Pinomaa, Tatu ; Holmberg, Kenneth. / Effective interface model for design and tailoring of wc-co microstructures. Proceedings Euro PM 2015: International Power Metallurgy Congress and Exhibition. European Power Metallurgy Association EPMA, 2015.
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    title = "Effective interface model for design and tailoring of wc-co microstructures",
    abstract = "Interface structures are a key feature in developing modern composite material solutions with ever improved performance. To that effect, we present a nano-microstructural modeling approach for the WC-Co system which can include the interface structures of WC-Co and various other phases present in the microstructure, utilising a methodology which combines imaging based and synthetically generated nano-microstructures into an effective interface model for predicting the behavior and properties of the resulting composite material. The effective model comprises of a local model of the WC-Co interface interacting with a larger scale model of the WC-Co microstructure. The interface model consists of either layered modeling of the different phase structures (phases of WC, films due to doping of cemented carbides, binder phase and microstructure, segregated and carbide structures within the binder such as gamma or eta phases, oriented and/or gradient structures etc.) or utilization of locally defined spatial morphologies and properties in three-dimensional models. In this current work, two approaches are made available and demonstrated. Firstly, commonly identified interface structures can be assessed with the methodology via creation of synthetic carbide-carbide, carbide-binder or related microstructural characteristics. Secondly, the use of phase field analysis generated interface solute concentrations are used as an input from accompanying work by the authors. The results provide a linkage between the interface character of cemented carbide microstructures and their properties, for example with respect to compressive strength, fracture toughness and wear resistance. The results demonstrate the obvious importance of interface character and properties with respect to resulting material properties, and describe a toolset towards systematic inclusion of these features in a materials-by-design type of material development. The methodology presents a multiscale formalism for carrying out performance and application driven evaluation and tailoring of composite interfaces and mesostructures, carried out on the basis of the emerging engineering material properties.",
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    Laukkanen, A, Andersson, T, Pinomaa, T & Holmberg, K 2015, Effective interface model for design and tailoring of wc-co microstructures. in Proceedings Euro PM 2015: International Power Metallurgy Congress and Exhibition. European Power Metallurgy Association EPMA, International Power Metallurgy Congress and Exhibition, Euro PM 2015, Reims, France, 4/10/15.

    Effective interface model for design and tailoring of wc-co microstructures. / Laukkanen, Anssi; Andersson, Tom; Pinomaa, Tatu; Holmberg, Kenneth.

    Proceedings Euro PM 2015: International Power Metallurgy Congress and Exhibition. European Power Metallurgy Association EPMA, 2015.

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

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    T1 - Effective interface model for design and tailoring of wc-co microstructures

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    AU - Pinomaa, Tatu

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    N2 - Interface structures are a key feature in developing modern composite material solutions with ever improved performance. To that effect, we present a nano-microstructural modeling approach for the WC-Co system which can include the interface structures of WC-Co and various other phases present in the microstructure, utilising a methodology which combines imaging based and synthetically generated nano-microstructures into an effective interface model for predicting the behavior and properties of the resulting composite material. The effective model comprises of a local model of the WC-Co interface interacting with a larger scale model of the WC-Co microstructure. The interface model consists of either layered modeling of the different phase structures (phases of WC, films due to doping of cemented carbides, binder phase and microstructure, segregated and carbide structures within the binder such as gamma or eta phases, oriented and/or gradient structures etc.) or utilization of locally defined spatial morphologies and properties in three-dimensional models. In this current work, two approaches are made available and demonstrated. Firstly, commonly identified interface structures can be assessed with the methodology via creation of synthetic carbide-carbide, carbide-binder or related microstructural characteristics. Secondly, the use of phase field analysis generated interface solute concentrations are used as an input from accompanying work by the authors. The results provide a linkage between the interface character of cemented carbide microstructures and their properties, for example with respect to compressive strength, fracture toughness and wear resistance. The results demonstrate the obvious importance of interface character and properties with respect to resulting material properties, and describe a toolset towards systematic inclusion of these features in a materials-by-design type of material development. The methodology presents a multiscale formalism for carrying out performance and application driven evaluation and tailoring of composite interfaces and mesostructures, carried out on the basis of the emerging engineering material properties.

    AB - Interface structures are a key feature in developing modern composite material solutions with ever improved performance. To that effect, we present a nano-microstructural modeling approach for the WC-Co system which can include the interface structures of WC-Co and various other phases present in the microstructure, utilising a methodology which combines imaging based and synthetically generated nano-microstructures into an effective interface model for predicting the behavior and properties of the resulting composite material. The effective model comprises of a local model of the WC-Co interface interacting with a larger scale model of the WC-Co microstructure. The interface model consists of either layered modeling of the different phase structures (phases of WC, films due to doping of cemented carbides, binder phase and microstructure, segregated and carbide structures within the binder such as gamma or eta phases, oriented and/or gradient structures etc.) or utilization of locally defined spatial morphologies and properties in three-dimensional models. In this current work, two approaches are made available and demonstrated. Firstly, commonly identified interface structures can be assessed with the methodology via creation of synthetic carbide-carbide, carbide-binder or related microstructural characteristics. Secondly, the use of phase field analysis generated interface solute concentrations are used as an input from accompanying work by the authors. The results provide a linkage between the interface character of cemented carbide microstructures and their properties, for example with respect to compressive strength, fracture toughness and wear resistance. The results demonstrate the obvious importance of interface character and properties with respect to resulting material properties, and describe a toolset towards systematic inclusion of these features in a materials-by-design type of material development. The methodology presents a multiscale formalism for carrying out performance and application driven evaluation and tailoring of composite interfaces and mesostructures, carried out on the basis of the emerging engineering material properties.

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    M3 - Conference article in proceedings

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    BT - Proceedings Euro PM 2015

    PB - European Power Metallurgy Association EPMA

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    Laukkanen A, Andersson T, Pinomaa T, Holmberg K. Effective interface model for design and tailoring of wc-co microstructures. In Proceedings Euro PM 2015: International Power Metallurgy Congress and Exhibition. European Power Metallurgy Association EPMA. 2015