Detail publikace

Microstructure and impact properties of ferritic ODS ODM401 (14%Cr-ODS of MA957 type)

Originální název

Microstructure and impact properties of ferritic ODS ODM401 (14%Cr-ODS of MA957 type)

Anglický název

Microstructure and impact properties of ferritic ODS ODM401 (14%Cr-ODS of MA957 type)

Jazyk

en

Originální abstrakt

The oxide dispersion strengthened (ODS) steel ODM401 is one of the ODS steels developed during the 1960–1970s as a structural tubing material for fast breeder reactors, mainly because of their hightemperature strength and swelling resistance under irradiation. Nowadays, these steels are taken under consideration as a structural material for blanket and heat exchanger components in fusion reactors. The aim of the work was to describe fracture behaviour of ODM401 steel in connection to the microstructure. The microstructure of as-extruded ODM401 steel has fine grains elongated in the extrusion direction. The two population of Y–Ti–O particles sizes were found in the microstructure of size about 10–20 nm and 2– 3 nm. Temperature dependence of KLST impact energy was measured and transition temperature tDBTT evaluated about -110 degree C. The fracture surface was formed by alternated cleavage areas connected by inclined areas fractured by dimple micro mechanism proportional to the impact energy.

Anglický abstrakt

The oxide dispersion strengthened (ODS) steel ODM401 is one of the ODS steels developed during the 1960–1970s as a structural tubing material for fast breeder reactors, mainly because of their hightemperature strength and swelling resistance under irradiation. Nowadays, these steels are taken under consideration as a structural material for blanket and heat exchanger components in fusion reactors. The aim of the work was to describe fracture behaviour of ODM401 steel in connection to the microstructure. The microstructure of as-extruded ODM401 steel has fine grains elongated in the extrusion direction. The two population of Y–Ti–O particles sizes were found in the microstructure of size about 10–20 nm and 2– 3 nm. Temperature dependence of KLST impact energy was measured and transition temperature tDBTT evaluated about -110 degree C. The fracture surface was formed by alternated cleavage areas connected by inclined areas fractured by dimple micro mechanism proportional to the impact energy.

BibTex


@article{BUT76002,
  author="Hynek {Hadraba} and Luděk {Stratil} and Ivo {Dlouhý}",
  title="Microstructure and impact properties of ferritic ODS ODM401 (14%Cr-ODS of MA957 type)",
  annote="The oxide dispersion strengthened (ODS) steel ODM401 is one of the ODS steels developed during the
1960–1970s as a structural tubing material for fast breeder reactors, mainly because of their hightemperature strength and swelling resistance under irradiation. Nowadays, these steels are taken under
consideration as a structural material for blanket and heat exchanger components in fusion reactors. The
aim of the work was to describe fracture behaviour of ODM401 steel in connection to the microstructure.
The microstructure of as-extruded ODM401 steel has fine grains elongated in the extrusion direction. The
two population of Y–Ti–O particles sizes were found in the microstructure of size about 10–20 nm and 2–
3 nm. Temperature dependence of KLST impact energy was measured and transition temperature tDBTT
evaluated about -110 degree C. The fracture surface was formed by alternated cleavage areas connected by
inclined areas fractured by dimple micro mechanism proportional to the impact energy.",
  chapter="76002",
  number="1-3",
  volume="417",
  year="2011",
  month="october",
  pages="241--244",
  type="journal article - other"
}