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/ReportReportProfessional

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

NameJCR Technical Reports
PublisherPublications Office of the European Union
VolumeEUR 28746 EN
ISSN (Print)1831-9424

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, Vol.. 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, Vol. EUR 28746 EN).
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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.",
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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, vol. 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, Vol. EUR 28746 EN).

Research output: Book/ReportReportProfessional

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

AU - Holmström, Stefan

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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

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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

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SN - 978-92-79-72278-3

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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, Vol. EUR 28746 EN). https://doi.org/10.2760/49859