All Stories

  1. Microstructure-Informed Prediction of Hardening in Ion-Irradiated Reactor Pressure Vessel Steels

    Article • Metals, February 2024, MDPI AG

    Dr. Frank Bergner

  2. Microstructural characterisation of brittle fracture initiation sites in reactor pressure vessel steels

    Article • Nuclear Materials and Energy, December 2023, Elsevier

    Dr. Frank Bergner

  3. Microstructural Characterization of Reactor Pressure Vessel Steels

    Article • Metals, July 2023, MDPI AG

    Dr. Frank Bergner

  4. Small-angle neutron scattering study of neutron-irradiated and post-irradiation annealed VVER-1000 reactor pressure vessel weld material

    Article • Frontiers in Nuclear Engineering, April 2023, Frontiers

    Dr. Frank Bergner

  5. Multiscale modelling in nuclear ferritic steels: From nano-sized defects to embrittlement

    Article • Materials Today Physics, October 2022, Elsevier

    Dr. Frank Bergner

  6. Nanoindentation applied to ion-irradiated and neutron-irradiated Fe-9Cr and Fe-9Cr-NiSiP model alloys

    Article • Journal of Applied Physics, July 2022, American Institute of Physics

    Dr. Frank Bergner

  7. Small-angle neutron scattering uncovers irradiation effects on Fe-Cr model alloys and a steel

    Article • Journal of Applied Crystallography, June 2022, International Union of Crystallography

    Dr. Frank Bergner

  8. Microstructure-informed prediction and measurement of nanoindentation hardness of an Fe-9Cr alloy irradiated with Fe-ions of 1 and 5 MeV energy

    Article • Nuclear Materials and Energy, March 2022, Elsevier

    Dr. Frank Bergner

  9. Effect of Neutron Flux on an Irradiation-Induced Microstructure and Hardening of Reactor Pressure Vessel Steels

    Article • Metals, February 2022, MDPI AG

    Dr. Frank Bergner

  10. Nanoindentation Response of Ion-Irradiated Fe, Fe-Cr Alloys and Ferritic-Martensitic Steel Eurofer 97: The Effect of Ion Energy

    Article • Frontiers in Materials, January 2022, Frontiers

    Dr. Frank Bergner

  11. Multiscale modelling for fusion and fission materials: The M4F project

    Article • Nuclear Materials and Energy, December 2021, Elsevier

    Dr. Frank Bergner

  12. Depth distribution of irradiation-induced dislocation loops in an Fe-9Cr model alloy irradiated with Fe ions: The effect of ion energy

    Article • Nuclear Materials and Energy, June 2021, Elsevier

    Dr. Frank Bergner

  13. Use of the small punch test for the estimation of ductile-to-brittle transition temperature shift of irradiated steels

    Article • Nuclear Materials and Energy, March 2021, Elsevier

    Dr. Frank Bergner

  14. Microstructure and fracture toughness characterization of three 9Cr ODS EUROFER steels with different thermo-mechanical treatments

    Article • Journal of Nuclear Materials, December 2020, Elsevier

    Dr. Frank Bergner

  15. The dominant mechanisms for the formation of solute-rich clusters in low-Cu steels under irradiation

    Article • Materials Today Energy, September 2020, Elsevier

    Dr. Frank Bergner

  16. Relationships between depth-resolved primary radiation damage, irradiation-induced nanostructure and nanoindentation response of ion-irradiated Fe-Cr and ODS Fe-Cr alloys

    Article • Nuclear Materials and Energy, August 2020, Elsevier

    Dr. Frank Bergner

  17. Microstructural characterization of inhomogeneity in 9Cr ODS EUROFER steel

    Article • Journal of Nuclear Materials, May 2020, Elsevier

    Dr. Frank Bergner

  18. TEM Observation of Loops Decorating Dislocations and Resulting Source Hardening of Neutron-Irradiated Fe-Cr Alloys

    Article • Metals, January 2020, MDPI AG

    Dr. Frank Bergner

  19. Nanoindentation of single- (Fe) and dual-beam (Fe and He) ion-irradiated ODS Fe-14Cr-based alloys: Effect of the initial microstructure on irradiation-induced hardening

    Article • Journal of Nuclear Materials, May 2019, Elsevier

    Dr. Frank Bergner

  20. Effect of anisotropic microstructure of ODS steels on small punch test results

    Article • Theoretical and Applied Fracture Mechanics, April 2019, Elsevier

    Dr. Frank Bergner

  21. Magnetic small-angle neutron scattering

    Article • Reviews of Modern Physics, March 2019, American Physical Society (APS)

    Dr. Frank Bergner, Sabrina Disch

  22. Post-irradiation annealing behaviour of oxide dispersion strengthened Fe-Cr alloys studied by nanoindentation

    Article • Philosophical Magazine Letters, December 2018, Taylor & Francis

    Dr. Frank Bergner

  23. Why Do Secondary Cracks Preferentially Form in Hot-Rolled ODS Steels in Comparison with Hot-Extruded ODS Steels?

    Article • Crystals, July 2018, MDPI AG

    Dr. Frank Bergner

  24. Helium-ion microscopy, helium-ion irradiation and nanoindentation of Eurofer 97 and ODS Eurofer

    Article • Journal of Nuclear Materials, July 2018, Elsevier

    Dr. Frank Bergner

  25. Nanoindentation of ion-irradiated reactor pressure vessel steels – model-based interpretation and comparison with neutron irradiation

    Article • The Philosophical Magazine A Journal of Theoretical Experimental and Applied Physics, January 2018, Taylor & Francis

    Dr. Frank Bergner

  26. Fe2+ ion irradiated JRQ steel investigated by nanoindentation and slow-positron Doppler broadening spectroscopy

    Article • Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms, January 2018, Elsevier

    Dr. Frank Bergner

  27. Microstructure characterization and strengthening mechanisms of oxide dispersion strengthened (ODS) Fe-9%Cr and Fe-14%Cr extruded bars

    Article • Journal of Nuclear Materials, November 2017, Elsevier

    Dr. Frank Bergner

  28. The effect of the initial microstructure in terms of sink strength on the ion-irradiation-induced hardening of ODS alloys studied by nanoindentation

    Article • Journal of Nuclear Materials, November 2017, Elsevier

    Dr. Frank Bergner

  29. Effect of microstructural anisotropy on fracture toughness of hot rolled 13Cr ODS steel – The role of primary and secondary cracking

    Article • Journal of Nuclear Materials, August 2017, Elsevier

    Dr. Frank Bergner

  30. Investigation of spark plasma sintered oxide-dispersion strengthened steels by means of small-angle neutron scattering

    Article • Journal of Alloys and Compounds, November 2016, Elsevier

    Dr. Frank Bergner

  31. Alternative Fabrication Routes toward Oxide-Dispersion-Strengthened Steels and Model Alloys

    Article • Metallurgical and Materials Transactions A, July 2016, Springer Science + Business Media

    Dr. Frank Bergner

  32. Fabrication and characterization of oxide dispersion strengthened (ODS) 14Cr steels consolidated by means of hot isostatic pressing, hot extrusion and spark plasma sintering

    Article • Journal of Nuclear Materials, April 2016, Elsevier

    Dr. Frank Bergner

  33. Ion irradiation combined with nanoindentation as a screening test procedure for irradiation hardening

    Article • Journal of Nuclear Materials, April 2016, Elsevier

    Dr. Frank Bergner

  34. JRQ and JPA irradiated and annealed reactor pressure vessel steels studied by positron annihilation

    Article • Radiation Effects and Defects in Solids, March 2016, Taylor & Francis

    Dr. Frank Bergner

  35. Irradiation hardening of Fe–9Cr-based alloys and ODS Eurofer: Effect of helium implantation and iron-ion irradiation at 300 °C including sequence effects

    Article • Journal of Nuclear Materials, March 2016, Elsevier

    Dr. Frank Bergner

  36. Effect of neutron flux on the characteristics of irradiation-induced nanofeatures and hardening in pressure vessel steels

    Article • Acta Materialia, February 2016, Elsevier

    Dr. Frank Bergner

  37. Bimodal Grain Size Distribution of Nanostructured Ferritic ODS Fe-Cr Alloys

    Article • Journal of the American Ceramic Society, September 2015, Wiley

    Dr. Frank Bergner

  38. Contributions of Cu-rich clusters, dislocation loops and nanovoids to the irradiation-induced hardening of Cu-bearing low-Ni reactor pressure vessel steels

    Article • Journal of Nuclear Materials, June 2015, Elsevier

    Dr. Frank Bergner

  39. Post-irradiation annealing behavior of neutron-irradiated FeCu, FeMnNi and FeMnNiCu model alloys investigated by means of small-angle neutron scattering

    Article • Journal of Nuclear Materials, November 2014, Elsevier

    Dr. Frank Bergner

  40. FP7 Project LONGLIFE: Overview of results and implications

    Article • Nuclear Engineering and Design, October 2014, Elsevier

    Dr. Frank Bergner

  41. Application of a three-feature dispersed-barrier hardening model to neutron-irradiated Fe–Cr model alloys

    Article • Journal of Nuclear Materials, May 2014, Elsevier

    Dr. Frank Bergner

  42. Microstructural and mechanical characterisation of ODS ferritic alloys produced by mechanical alloying and spark plasma sintering

    Article • Materials Science and Technology, April 2014, Taylor & Francis

    Dr. Frank Bergner

  43. Critical assessment of Cr-rich precipitates in neutron-irradiated Fe–12at%Cr: Comparison of SANS and APT

    Article • Journal of Nuclear Materials, November 2013, Elsevier

    Dr. Frank Bergner

  44. Damage accumulation in pure iron and high concentrated Fe–12.5 at% Cr alloy: comparison between object kinetic Monte Carlo and cluster dynamics

    Article • Radiation Effects and Defects in Solids, October 2013, Taylor & Francis

    Dr. Frank Bergner

  45. Small-angle neutron scattering of low-Cu RPV steels neutron-irradiated at 255°C and post-irradiation annealed at 290°C

    Article • Journal of Nuclear Materials, October 2013, Elsevier

    Dr. Frank Bergner

  46. Cr segregation on dislocation loops enhances hardening in ferritic Fe–Cr alloys

    Article • Acta Materialia, March 2013, Elsevier

    Dr. Frank Bergner

  47. Long Term Irradiation Phenomena in RPV Steels—The LONGLIFE Project

    Article • December 2012, ASTM International

    Dr. Frank Bergner

  48. Nanoscale characterization of ODS Fe–9%Cr model alloys compacted by spark plasma sintering

    Article • Journal of Nuclear Materials, September 2012, Elsevier

    Henrich Frielinghaus, Dr. Frank Bergner

  49. Application of Positron Annihilation Spectroscopy to the Study of Irradiated Fe-Cr Alloys

    Article • Defect and Diffusion Forum, September 2012, Trans Tech Publications

    Dr. Frank Bergner

  50. Influence of the copper impurity level on the irradiation response of reactor pressure vessel steels investigated by SANS

    Article • Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms, June 2012, Elsevier

    Dr. Frank Bergner

  51. Vibrational contribution to the thermodynamics of nanosized precipitates: vacancy–copper clusters in bcc-Fe

    Article • Journal of Physics Condensed Matter, May 2012, Institute of Physics Publishing

    Dr. Frank Bergner

  52. Safety Monitoring of Materials and Components of Nuclear Power Plants

    Article • January 2012, Springer Science + Business Media

    Dr. Frank Bergner

  53. Nanoclusters in bcc-Fe containing vacancies, copper and nickel: Structure and energetics

    Article • Journal of Nuclear Materials, November 2011, Elsevier

    Dr. Frank Bergner

  54. Ion-irradiation-induced damage in Fe–Cr alloys characterized by nanoindentation

    Article • Journal of Nuclear Materials, October 2011, Elsevier

    Dr. Frank Bergner

  55. Microstructure of oxide dispersion strengthened Eurofer and iron–chromium alloys investigated by means of small-angle neutron scattering and transmission electron microscopy

    Article • Journal of Nuclear Materials, September 2011, Elsevier

    Dr. Frank Bergner

  56. Small-angle neutron scattering investigation of as-irradiated, annealed and reirradiated reactor pressure vessel weld material of decommissioned reactor

    Article • Journal of Nuclear Materials, September 2011, Elsevier

    Dr. Frank Bergner

  57. Structure, energetics and thermodynamics of copper–vacancy clusters in bcc-Fe: An atomistic study

    Article • Journal of Nuclear Materials, July 2011, Elsevier

    Dr. Frank Bergner

  58. Cluster Dynamics Study of Neutron Irradiation Induced Defects in Fe-12.5at%Cr Alloy

    Article • Solid State Phenomena, June 2011, Trans Tech Publications

    Dr. Frank Bergner

  59. The microstructure of neutron-irradiated Fe–Cr alloys: A small-angle neutron scattering study

    Article • Journal of Nuclear Materials, February 2011, Elsevier

    Dr. Frank Bergner

  60. SANS investigation of a neutron-irradiated Fe–9at%Cr alloy

    Article • Journal of Nuclear Materials, December 2010, Elsevier

    Dr. Frank Bergner

  61. Characterization of neutron-irradiated ferritic model alloys and a RPV steel from combined APT, SANS, TEM and PAS analyses

    Article • Journal of Nuclear Materials, November 2010, Elsevier

    Dr. Frank Bergner

  62. On the correlation between irradiation-induced microstructural features and the hardening of reactor pressure vessel steels

    Article • Journal of Nuclear Materials, November 2010, Elsevier

    Dr. Frank Bergner

  63. On the formation of mixed vacancy-copper clusters in neutron-irradiated Fe-Cu alloys

    Article • Journal of Physics Conference Series, October 2010, Institute of Physics Publishing

    Dr. Frank Bergner

  64. SANS investigation of neutron-irradiated Fe-Cr alloys

    Article • Journal of Physics Conference Series, October 2010, Institute of Physics Publishing

    Dr. Frank Bergner

  65. Comparative small-angle neutron scattering study of neutron-irradiated Fe, Fe-based alloys and a pressure vessel steel

    Article • Journal of Nuclear Materials, April 2010, Elsevier

    Dr. Frank Bergner

  66. Cluster dynamics simulation of point defect clusters in neutron irradiated pure iron

    Article • Radiation Effects and Defects in Solids, March 2010, Taylor & Francis

    Dr. Frank Bergner

  67. Mechanical Properties of Spark Plasma Sintered Fe-Cr Compacts Strengthened by Nanodispersed Yttria Particles

    Article • Materials Testing, March 2010, De Gruyter

    Dr. Frank Bergner

  68. Irradiation Damage and Embrittlement in RPV Steels Under the Aspect of Long Term Operation: Overview of the FP7 Project LONGLIFE

    Article • January 2010, ASME International

    Dr. Frank Bergner

  69. Study of Metastable States of the Precipitates in Reactor Steels Under Neutron Irradiation

    Article • January 2010, Springer Science + Business Media

    Dr. Frank Bergner

  70. Acceleration of irradiation hardening of low-copper reactor pressure vessel steel observed by means of SANS and tensile testing

    Article • Philosophical Magazine Letters, December 2009, Taylor & Francis

    Dr. Frank Bergner

  71. Estimation of the solubility limit of Cr in Fe at 300°C from small-angle neutron scattering in neutron-irradiated Fe–Cr alloys

    Article • Scripta Materialia, December 2009, Elsevier

    Dr. Frank Bergner

  72. Ion-irradiation-induced damage of steels characterized by means of nanoindentation

    Article • Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms, May 2009, Elsevier

    Dr. Frank Bergner

  73. Flux dependence of cluster formation in neutron irradiated weld material - small-angle neutron scattering experiments and rate theory simulation

    Article • October 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Dr. Frank Bergner

  74. Cluster Dynamics Simulation of Reactor Pressure Vessel Steels under Irradiation

    Article • April 2008, CrossRef Test Account

    Dr. Frank Bergner

  75. Investigation of the Damage Around a Crack Tip in Metals using Small Angle X-Ray Scattering

    Article • Materials Testing, April 2008, De Gruyter

    Dr. Frank Bergner

  76. Flux dependence of cluster formation in neutron-irradiated weld material

    Article • Journal of Physics Condensed Matter, February 2008, Institute of Physics Publishing

    Dr. Frank Bergner

  77. Nature of defect clusters in neutron-irradiated iron-based alloys deduced from small-angle neutron scattering

    Article • Journal of Nuclear Materials, February 2008, Elsevier

    Dr. Frank Bergner

  78. Small-angle neutron scattering study of neutron-irradiated iron and an iron–nickel alloy

    Article • Journal of Nuclear Materials, February 2008, Elsevier

    Dr. Frank Bergner

  79. Indentation response of single-crystalline GaAs in the nano-, micro-, and macroregime

    Article • International Journal of Materials Research (formerly Zeitschrift fuer Metallkunde), August 2007, De Gruyter

    Dr. Frank Bergner

  80. SANS response of VVER440-type weld material after neutron irradiation, post-irradiation annealing and reirradiation

    Article • The Philosophical Magazine A Journal of Theoretical Experimental and Applied Physics, March 2007, Taylor & Francis

    Dr. Frank Bergner

  81. Small-angle neutron scattering study of post-irradiation annealed neutron irradiated pressure vessel steels

    Article • Journal of Nuclear Materials, July 2006, Elsevier

    Dr. Frank Bergner

  82. Deformation-induced small-angle scattering contrast in aluminium alloys

    Article • Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms, August 2005, Elsevier

    Dr. Frank Bergner, Dr Wim Bras

  83. Material-related fundamentals of cutting techniques for GaAs wafer manufacturing

    Article • Zeitschrift für Metallkunde, July 2005, De Gruyter

    Dr. Frank Bergner

  84. Scaling of self-similar long fatigue crack growth in aluminium alloys

    Article • Materials Science and Engineering A, July 2005, Elsevier

    Dr. Frank Bergner

  85. On the factors affecting the propagation of long fatigue cracks in thin-sheet wrought aluminium alloys

    Article • International Journal of Fatigue, September 2003, Elsevier

    Dr. Frank Bergner

  86. Mapping of the rate-controlling steps for environment-assisted fatigue crack growth applied to the aluminium alloy 6013 T6

    Article • International Journal of Fatigue, August 2002, Elsevier

    Dr. Frank Bergner

  87. The material-dependent variability of fatigue crack growth rates of aluminium alloys in the Paris regime

    Article • International Journal of Fatigue, May 2001, Elsevier

    Dr. Frank Bergner

  88. Article • Journal of Materials Science Materials in Medicine, January 2001, Springer Science + Business Media

    Dr. Frank Bergner

  89. Environment-sensitive fracture of aluminium alloy 6013

    Article • Werkstoffe und Korrosion, September 2000, Wiley

    Dr. Frank Bergner

  90. Environment-sensitive fracture of aluminium alloy 6013

    Article • Werkstoffe und Korrosion, September 2000, Wiley

    Dr. Frank Bergner

  91. A new approach to the correlation between the coefficient and the exponent in the power law equation of fatigue crack growth

    Article • International Journal of Fatigue, March 2000, Elsevier

    Dr. Frank Bergner

  92. Influence of the depth position on the neutron embrittlement of the VVER reactor pressure vessel steel 15Cr2MoV(A) consequences for the assessment of reactor safety

    Article • Nuclear Engineering and Design, November 1995, Elsevier

    Dr. Frank Bergner

  93. The role of microstructure in the propagation of ultrasound in bainitic low-alloy steels

    Article • International Journal of Pressure Vessels and Piping, January 1993, Elsevier

    Dr. Frank Bergner

  94. Mechanisms of ultrasonic attenuation in a bainitic low-alloy steel

    Article • Scripta Metallurgica et Materialia, July 1990, Elsevier

    Dr. Frank Bergner