TY - GEN
T1 - Creep property evaluation of heat-resistant steels by small punch creep test
AU - Komazaki, S.
AU - Nakata, T.
AU - Sugimoto, T.
AU - Kohno, Y.
PY - 2007/1/1
Y1 - 2007/1/1
N2 - The recently developed small punch (SP) creep test was applied to four different heat-resistant ferritic steels, namely, two kinds of conventional ferritic steels which had been actually used in the high-temperature components for long periods and two advanced high chromium ferritic steels for fusion reactor materials to investigate the applicability of the SP creep test. The ratio of the load of SP creep test to the stress of standard uniaxial creep test was calculated so that both the creep rupture curves (load/stress versus Larson-Miller parameter curves) were overlapped to convert the results of SP creep test into those of standard test. As a result, the ratio was determined to be 2.4, irrespective of the kind of ferritic steel. This result indicates that the creep rupture strength of heat-resistance ferritic steels can be estimated using a miniaturized plate-type specimen and this conversion coefficient 2.4 independent of the kind of ferritic steel.
AB - The recently developed small punch (SP) creep test was applied to four different heat-resistant ferritic steels, namely, two kinds of conventional ferritic steels which had been actually used in the high-temperature components for long periods and two advanced high chromium ferritic steels for fusion reactor materials to investigate the applicability of the SP creep test. The ratio of the load of SP creep test to the stress of standard uniaxial creep test was calculated so that both the creep rupture curves (load/stress versus Larson-Miller parameter curves) were overlapped to convert the results of SP creep test into those of standard test. As a result, the ratio was determined to be 2.4, irrespective of the kind of ferritic steel. This result indicates that the creep rupture strength of heat-resistance ferritic steels can be estimated using a miniaturized plate-type specimen and this conversion coefficient 2.4 independent of the kind of ferritic steel.
KW - Creep properties
KW - Fossil power plant
KW - Fusion reactor
KW - Heat-resistant steel
KW - Life prediction
KW - Material deterioration
KW - Small punch creep test
KW - Small specimen test technique
UR - http://www.scopus.com/inward/record.url?scp=38349010837&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=38349010837&partnerID=8YFLogxK
U2 - 10.4028/0-87849-428-6.4434
DO - 10.4028/0-87849-428-6.4434
M3 - Conference contribution
AN - SCOPUS:38349010837
SN - 0878494286
SN - 9780878494286
T3 - Materials Science Forum
SP - 4434
EP - 4439
BT - Supplement to THERMEC 2006, 5th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2006
PB - Trans Tech Publications Ltd
T2 - 5th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2006
Y2 - 4 July 2006 through 8 July 2006
ER -