Detail publikace

Influence of microstructure on impact properties of 9–18%Cr ODS steels for fusion/fission applications

HADRABA, H. FOURNIER, B. STRATIL, L. MALAPLATE, J. ROUFIÉ, A. WIDENT, P. ZIOLEK, L. BÉCHADE, J.

Anglický název

Influence of microstructure on impact properties of 9–18%Cr ODS steels for fusion/fission applications

Typ

Článek recenzovaný mimo WoS a Scopus

Jazyk

en

Originální abstrakt

The paper describes the influence of the microstructure of (9–18%)Cr–W–Ti–Y2O3 ODS steels on their impact fracture properties. The extrusion shape plays a major role on the impact properties, materials extruded as a rod present a higher upper shelf energy (USE) and a lower ductile to brittle transition temperature (DBTT) compared to materials extruded as plates. The DBTT for the non-recrystallized 14%Cr ferritic steels was shifted towards higher temperatures compared to the 9%Cr tempered ferritic–martensitic steel. Increasing the W and Ti content in 9%Cr tempered ferritic–martensitic ODS steel leads to a USE and a DBTT shifted towards higher energies and higher temperatures, respectively. Increasing the yttria content leads to a drop of the impact energy and a shift of the DBTT of ferritic ODS steel towards higher temperatures. The present study highlights extensive splitting of the fracture surfaces and a dependency of the impact energy on the fracture plane orientation according to the microstructure anisotropy.

Klíčová slova anglicky

ODS steels, KLST, impact behaviour, anisotropy

Vydáno

2011-04-01

ISSN

0022-3115

Ročník

411

Číslo

1-3

Strany od–do

112–118

Počet stran

7

BIBTEX


@article{BUT75999,
  author="HADRABA, H. and FOURNIER, B. and STRATIL, L. and MALAPLATE, J. and ROUFIÉ, A. and WIDENT, P. and ZIOLEK, L. and BÉCHADE, J.",
  title="Influence of microstructure on impact properties of 9–18%Cr ODS steels for fusion/fission applications",
  journal="Journal of Nuclear Materials",
  year="2011",
  volume="411",
  number="1-3",
  pages="112--118",
  issn="0022-3115"
}