Published 2018 | Version v1
Report Metadata-only

The influence of microstructure on the fracture behaviour of ferritic ODS steels

Creators

  • 1. Helmholtz-Zentrum Dresden-Rossendorf e.V., Dresden (Germany). Structural Materials
  • 2. Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen (Germany). Inst. for Applied Materials

Description

Oxide dispersion strengthened (ODS) steels are candidate materials for fuel cladding tubes in Gen-IV nuclear fission reactors, and as structural material for fusion devices. ODS steel possess high temperature strength and irradiation resistance but suffer from low fracture toughness, anisotropic fracture behavior and secondary cracking. In the present work, the microstructural factors causing these problems are investigated through fracture toughness testing and basic microstructural analysis. Microstructural factors such as particle-matrix bond strength and grain morphology played a major in influencing fracture toughness and secondary cracking.

Part of:
Institute of Resource Ecology. Annual report 2017

Additional details

Publishing Information

Imprint Title
Institute of Resource Ecology. Annual report 2017
Imprint Pagination
110 p.
Journal Page Range
p. 59
ISSN
2191-8708
Report number
HZDR--085

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
49071776
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CRACK PROPAGATION; DISPERSIONS; FRACTURE PROPERTIES; MICROSTRUCTURE; MORPHOLOGY; OXIDES; SCANNING ELECTRON MICROSCOPY; STEELS
Descriptors DEC
ALLOYS; CARBON ADDITIONS; CHALCOGENIDES; ELECTRON MICROSCOPY; IRON ALLOYS; IRON BASE ALLOYS; MECHANICAL PROPERTIES; MICROSCOPY; OXYGEN COMPOUNDS; TRANSITION ELEMENT ALLOYS

Optional Information