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Status of experimental activities in WP4 and WP5

This project focuses on understanding the deformation behavior and slip localization in Fe-Cr alloys and F/M steels through experimental activities such as in-situ TEM examinations, proton irradiations, and AFM and SEM-FEG studies of irradiated and deformed specimens. The aim is to validate the elemental processes of interactions and enhance the multiscale modeling for fusion and fission materials.

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Status of experimental activities in WP4 and WP5

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  1. Status of experimental activities in WP4 and WP5 M. Hernández-Mayoral (CIEMAT) F. Mompiou (CEMES) J. Chen (PSI) C. Robertson (CEA) D. Terentyev (SCK-CEN) Plenary meeting, February 2019 Paris, CNRS Author / Meeting, Place, Date

  2. Multiscale Modelling for Fusion and Fission Materials (M4F) WP4: Deformation mechanisms at the grain scale in F/M steelsTask 4.1: Elementary processes of plasticitySub-Task 4.1.4: Comparison in-situ TEM / DD simulations to validate the elementary processes of interactions(CIEMAT, CEMES) Author / Meeting, Place, Date

  3. Sub-Task 4.1.4: Comparison in-situ TEM / DD simulations to validate the elementary processes of interactions • Experimentsaimed at understandingthedeformationbehavior of FeCralloys  TEM in-situ straining experiments: direct observation of processes occurring under stress: • Collaboration CEMES (CNRS) and CIEMAT • Experiments: • Selection of materials and irradiationconditionsbasedonpreviousexperience: ion irradiatedmicrostructuresfromMatISSE • Materials: G385-Fe9Cr and E97 • Ion irradiation conditions selected in order to focus on the study of dislocation-defect interaction • Work plan: • Irradiation: theproposalwassent to HZDR and wasaccepted • Irradiationswereperformedthe 23rd to 25th January 2019 • In-situ strainingexperiments can startalong 2019 Autor / Congreso, fecha

  4. Ion irradiatedmicrostructure Fe ions, 5 MeV, 0.5 dpa at 500 nmfromthesurface, 300ºC G385-Fe9Cr (F) BF, g type 110 MatISSE CIEMAT TEM results www.jpnm-matisse.eu

  5. Ion irradiationexperiment at IBC (HZDR) • G385-Fe9Cr and E97 • Ion irradiation of 3 mm diameter discs • Fe ions at 5 MeV • 0.5 dpa at 500 nmfromthesurface • TEM examination • IrradiationperformedJanuary 2019 Author / Meeting, Place, Date

  6. Ion irradiationexperiment at IBC (HZDR) • G385-Fe9Cr • Ion irradiation of in-situ strainingsamples • Fe ions at 5 MeV • 0.5 dpa at 500 nmfromthesurface • TEM in-situ strainingexperiments • RT: CIEMAT • Highertemperatures: CEMES IrradiationperformedJanuary2019 at IBC (HZDR) Author / Meeting, Place, Date

  7. Multiscale Modelling for Fusion and Fission Materials (M4F) T4.4: Validation through the experimental study of slip localization(CIEMAT, PSI, CEA) Plenary meeting, February 2019 Paris, CNRS Author / Meeting, Place, Date

  8. Objective:Irradiation of Fe-Cr alloys and F/M steels aimed at exploring early stages of formation of dislocation free channels • PIE methods including • in situ TEM (CIEMAT, PSI) • ex-situ TEM (CIEMAT) (WP5) J. Chen /DM1 Meeting, Dresden, 21-22. 01. 2019

  9. T4.4: Validation through the experimental study of slip localization (CIEMAT, CEMHTI, PSI) • The materials under investigation have been selected: • Single crystal Fe-16Cr (99.95%) in size of 10x5 with surface (110) • G385-Fe9Cr, E97 • First proton irradiations are scheduled to be performed at CEMHTI inApril-June 2019 Author / Meeting, Place, Date

  10. Parameters of requested irradiation: In situ & ex situ TEM observation: irradiation temperatures: 300 °C irradiation dose: 1 dpa Beam application at CEMHTI has been submitted to EMIR J. Chen /DM1 Meeting, Dresden, 21-22. 01. 2019

  11. Sketch of In-beam creep test apparatus Beam Parameters: Particle: p Energy: 7.2 MeV Current: 10 µA on 10x6 mm2 helium cooling circuit J. Chen /DM1 Meeting, Dresden, 21-22. 01. 2019

  12. Degrade wheel and its damage distribution in Fe-Cr with 7.2 MeV proton 1 dpa needs around 80 hours in present beam conditions J. Chen /DM1 Meeting, Dresden, 21-22. 01. 2019

  13. In situ TEM straining sample holder and its sample Gatan Model 671 single tilt strain cooling holder 1.3 in-situ tensile specimens which fit the requirement of straining sample holder 2.5 9.0 11 J. Chen /DM1 Meeting, Dresden, 21-22. 01. 2019

  14. Multiscale Modelling for Fusion and Fission Materials (M4F) WP5: Channelling at the polycrystal scale in F/M steels T5.4: Experiments to support modelingSub-task 5.4.2: TEM examination of irradiated and deformed materials (CIEMAT, SCK-CEN)Sub-task 5.4.3: AFM and SEM-FEG study of surfaces of irradiated and deformed specimens (CIEMAT, CEA) Plenary meeting, February 2019 Paris, CNRS Author / Meeting, Place, Date

  15. Sub-task 5.4.2: TEM examination of irradiated and deformed materials and Sub-task 5.4.3: AFM and SEM-FEG study of surfaces of irradiated and deformed specimens • Activities within the sub-tasks: • TEM examination of E97 after tensile testing: in progress at SCK-CEN (status presented previously by N. Castin) • In-situ TEM experiments under T4.4 will be performed • G385-Fe9Cr and E97 • Ion and proton irradiated • Once these experiments are done, the samples in-situ tested will be further examined in order to provide quantitative information of the preirradiated and deformed microstructure. • SEM-EBSD, TEM (CIEMAT) • AFM (CEA)- selected cases Author / Meeting, Place, Date

  16. This project has received funding from the Euratom research and training programme 2014-2018 under grant agreement No 755039 Author / Meeting, Place, Date

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