TY - JOUR
T1 - Crack Resistance Behavior of ODS and Standard 9%Cr–containing Steels at High Temperature
AU - Chaouadi, Rachid
AU - Coen, Gunter
AU - Lucon, Enrico
AU - Massaut, Vincent
N1 - Score = 10
PY - 2010/7/15
Y1 - 2010/7/15
N2 - 9%Cr–Oxide Dispersion Strengthened (ODS) steels are under intense research in the EU and other countries to extend the operation temperature range of ferritic alloys towards 600–650°C. Unfortunately, fracture toughness behavior in this high temperature range is missing. Therefore, the main objective of this work is to evaluate the crack resistance behavior of a 9%Cr ODS steel in the range of 300–650 °C and comparison to the standard non ODS Eurofer-97 steel.
Test results on the ODS steel show a drastic decrease of both initiation toughness and tearing resistance with increasing test temperature. In particular, above 550°C, the crack resistance curve (J–R curve) of ODS Eurofer is extremely low while the standard Eurofer–97 exhibit a much higher crack resistance curve.
AB - 9%Cr–Oxide Dispersion Strengthened (ODS) steels are under intense research in the EU and other countries to extend the operation temperature range of ferritic alloys towards 600–650°C. Unfortunately, fracture toughness behavior in this high temperature range is missing. Therefore, the main objective of this work is to evaluate the crack resistance behavior of a 9%Cr ODS steel in the range of 300–650 °C and comparison to the standard non ODS Eurofer-97 steel.
Test results on the ODS steel show a drastic decrease of both initiation toughness and tearing resistance with increasing test temperature. In particular, above 550°C, the crack resistance curve (J–R curve) of ODS Eurofer is extremely low while the standard Eurofer–97 exhibit a much higher crack resistance curve.
KW - ODS
KW - Eurofer
KW - J-R curve
KW - high temperature
KW - initiation toughness
KW - tearing resistance
UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_107158
UR - http://knowledgecentre.sckcen.be/so2/bibref/7129
U2 - 10.1016/j.jnucmat.2010.05.021
DO - 10.1016/j.jnucmat.2010.05.021
M3 - Article
SN - 0022-3115
VL - 403
SP - 15
EP - 18
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - 1-3
ER -