Determination of high temperature material properties of 15-15Ti steel by small specimen techniques

Stefan Holmström, Igor Simonovski, Fredericus de Haan, Jean-Marc Lapetite, Daniele Balardi, Marta Serrano, Eberhard Altstadt, Jarir Aktaa, Vasile Radu, Hygreeva Namburi, Carlo Cristalli, Rami Pohja, Remi Delville, Arnaud Courcelle

    Research output: Book/ReportReport

    Abstract

    This report presents the final results from the round robin test program on thin-walled cladding tubes in the EERA-JPNM pilot project TASTE. The test methods and assessment procedures used for the assessment of 15-15Ti steel are presented in a previous TASTE report 1. In this report the test results from different test types are assessed, compared and evaluated. The collation of results, mainly on tensile properties shows good agreement between tests methods. An open question remains if there is some anisotropy between the axial and the hoop direction of the tubes. Results from ring tension indicate lower strength values than the test performed in the axial direction. However, the ring tension calculated estimates do not take bending and friction into account. Tensile strength estimates from miniature Small punch tests samples (3 mm in diameter and 0.25 mm thick) indicate no anisotropy whereas tests on the full wall thickness (0.45 mm) with larger puncher balls indicate a reduction towards the INR measured tensile strength (Ring Tension) in the hoop direction. The ring compression test estimates based on calibration at room temperature by ENEA showed surprisingly good performance in estimating the tensile strength at higher temperatures despite the complex stress distribution for this type of test.
    Original languageEnglish
    PublisherEuropean Union
    Number of pages118
    ISBN (Print)978-92-79-72278-3
    DOIs
    Publication statusPublished - 2017
    MoE publication typeD4 Published development or research report or study

    Publication series

    SeriesEU Publications
    NumberEUR 28746 EN
    ISSN1018-5593

    Fingerprint

    Materials properties
    Tensile strength
    Steel
    Anisotropy
    Tensile properties
    Temperature
    Stress concentration
    Calibration
    Friction

    Keywords

    • fuel claddig
    • 15-15Ti steel
    • mechanical testing
    • small specimen techniques

    Cite this

    Holmström, S., Simonovski, I., de Haan, F., Lapetite, J-M., Balardi, D., Serrano, M., ... Courcelle, A. (2017). Determination of high temperature material properties of 15-15Ti steel by small specimen techniques. European Union. EU Publications, No. EUR 28746 EN https://doi.org/10.2760/49859
    Holmström, Stefan ; Simonovski, Igor ; de Haan, Fredericus ; Lapetite, Jean-Marc ; Balardi, Daniele ; Serrano, Marta ; Altstadt, Eberhard ; Aktaa, Jarir ; Radu, Vasile ; Namburi, Hygreeva ; Cristalli, Carlo ; Pohja, Rami ; Delville, Remi ; Courcelle, Arnaud. / Determination of high temperature material properties of 15-15Ti steel by small specimen techniques. European Union, 2017. 118 p. (EU Publications; No. EUR 28746 EN).
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    title = "Determination of high temperature material properties of 15-15Ti steel by small specimen techniques",
    abstract = "This report presents the final results from the round robin test program on thin-walled cladding tubes in the EERA-JPNM pilot project TASTE. The test methods and assessment procedures used for the assessment of 15-15Ti steel are presented in a previous TASTE report 1. In this report the test results from different test types are assessed, compared and evaluated. The collation of results, mainly on tensile properties shows good agreement between tests methods. An open question remains if there is some anisotropy between the axial and the hoop direction of the tubes. Results from ring tension indicate lower strength values than the test performed in the axial direction. However, the ring tension calculated estimates do not take bending and friction into account. Tensile strength estimates from miniature Small punch tests samples (3 mm in diameter and 0.25 mm thick) indicate no anisotropy whereas tests on the full wall thickness (0.45 mm) with larger puncher balls indicate a reduction towards the INR measured tensile strength (Ring Tension) in the hoop direction. The ring compression test estimates based on calibration at room temperature by ENEA showed surprisingly good performance in estimating the tensile strength at higher temperatures despite the complex stress distribution for this type of test.",
    keywords = "fuel claddig, 15-15Ti steel, mechanical testing, small specimen techniques",
    author = "Stefan Holmstr{\"o}m and Igor Simonovski and {de Haan}, Fredericus and Jean-Marc Lapetite and Daniele Balardi and Marta Serrano and Eberhard Altstadt and Jarir Aktaa and Vasile Radu and Hygreeva Namburi and Carlo Cristalli and Rami Pohja and Remi Delville and Arnaud Courcelle",
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    Holmström, S, Simonovski, I, de Haan, F, Lapetite, J-M, Balardi, D, Serrano, M, Altstadt, E, Aktaa, J, Radu, V, Namburi, H, Cristalli, C, Pohja, R, Delville, R & Courcelle, A 2017, Determination of high temperature material properties of 15-15Ti steel by small specimen techniques. EU Publications, no. EUR 28746 EN, European Union. https://doi.org/10.2760/49859

    Determination of high temperature material properties of 15-15Ti steel by small specimen techniques. / Holmström, Stefan; Simonovski, Igor; de Haan, Fredericus; Lapetite, Jean-Marc; Balardi, Daniele; Serrano, Marta; Altstadt, Eberhard; Aktaa, Jarir; Radu, Vasile; Namburi, Hygreeva; Cristalli, Carlo; Pohja, Rami; Delville, Remi; Courcelle, Arnaud.

    European Union, 2017. 118 p. (EU Publications; No. EUR 28746 EN).

    Research output: Book/ReportReport

    TY - BOOK

    T1 - Determination of high temperature material properties of 15-15Ti steel by small specimen techniques

    AU - Holmström, Stefan

    AU - Simonovski, Igor

    AU - de Haan, Fredericus

    AU - Lapetite, Jean-Marc

    AU - Balardi, Daniele

    AU - Serrano, Marta

    AU - Altstadt, Eberhard

    AU - Aktaa, Jarir

    AU - Radu, Vasile

    AU - Namburi, Hygreeva

    AU - Cristalli, Carlo

    AU - Pohja, Rami

    AU - Delville, Remi

    AU - Courcelle, Arnaud

    PY - 2017

    Y1 - 2017

    N2 - This report presents the final results from the round robin test program on thin-walled cladding tubes in the EERA-JPNM pilot project TASTE. The test methods and assessment procedures used for the assessment of 15-15Ti steel are presented in a previous TASTE report 1. In this report the test results from different test types are assessed, compared and evaluated. The collation of results, mainly on tensile properties shows good agreement between tests methods. An open question remains if there is some anisotropy between the axial and the hoop direction of the tubes. Results from ring tension indicate lower strength values than the test performed in the axial direction. However, the ring tension calculated estimates do not take bending and friction into account. Tensile strength estimates from miniature Small punch tests samples (3 mm in diameter and 0.25 mm thick) indicate no anisotropy whereas tests on the full wall thickness (0.45 mm) with larger puncher balls indicate a reduction towards the INR measured tensile strength (Ring Tension) in the hoop direction. The ring compression test estimates based on calibration at room temperature by ENEA showed surprisingly good performance in estimating the tensile strength at higher temperatures despite the complex stress distribution for this type of test.

    AB - This report presents the final results from the round robin test program on thin-walled cladding tubes in the EERA-JPNM pilot project TASTE. The test methods and assessment procedures used for the assessment of 15-15Ti steel are presented in a previous TASTE report 1. In this report the test results from different test types are assessed, compared and evaluated. The collation of results, mainly on tensile properties shows good agreement between tests methods. An open question remains if there is some anisotropy between the axial and the hoop direction of the tubes. Results from ring tension indicate lower strength values than the test performed in the axial direction. However, the ring tension calculated estimates do not take bending and friction into account. Tensile strength estimates from miniature Small punch tests samples (3 mm in diameter and 0.25 mm thick) indicate no anisotropy whereas tests on the full wall thickness (0.45 mm) with larger puncher balls indicate a reduction towards the INR measured tensile strength (Ring Tension) in the hoop direction. The ring compression test estimates based on calibration at room temperature by ENEA showed surprisingly good performance in estimating the tensile strength at higher temperatures despite the complex stress distribution for this type of test.

    KW - fuel claddig

    KW - 15-15Ti steel

    KW - mechanical testing

    KW - small specimen techniques

    U2 - 10.2760/49859

    DO - 10.2760/49859

    M3 - Report

    SN - 978-92-79-72278-3

    T3 - EU Publications

    BT - Determination of high temperature material properties of 15-15Ti steel by small specimen techniques

    PB - European Union

    ER -

    Holmström S, Simonovski I, de Haan F, Lapetite J-M, Balardi D, Serrano M et al. Determination of high temperature material properties of 15-15Ti steel by small specimen techniques. European Union, 2017. 118 p. (EU Publications; No. EUR 28746 EN). https://doi.org/10.2760/49859