TY - GEN
T1 - Effects of addition of V and NB on Ω in high CR ferritic steels
AU - Mitsuhara, Masatoshi
AU - Yoshida, Yu
AU - Ikeda, Ken Ichi
AU - Nakashima, Hideharu
AU - Wakai, Takashi
PY - 2007
Y1 - 2007
N2 - Creep tests and microstructural observations in several high Cr ferritic steels bearing V and Nb were carried out in order to investigate effects of addition of V and Nb on Ω, which is a coefficient of Ω method. Creep strength was improved with increasing the V content and was slightly lowered by increasing the Nb content. Ω in all the steels bearing V or Nb was lager than that in fundamental steel. The dependence of Ω on the amount of additions was different between V and Nb. In steels bearing V, Ω became larger with increasing V content. In steels bearing Nb, Ω became smaller. These results revealed that Ω corresponds to the creep strength, indicating that the value of Ω can be estimated using the strengthening effects of the additive element.
AB - Creep tests and microstructural observations in several high Cr ferritic steels bearing V and Nb were carried out in order to investigate effects of addition of V and Nb on Ω, which is a coefficient of Ω method. Creep strength was improved with increasing the V content and was slightly lowered by increasing the Nb content. Ω in all the steels bearing V or Nb was lager than that in fundamental steel. The dependence of Ω on the amount of additions was different between V and Nb. In steels bearing V, Ω became larger with increasing V content. In steels bearing Nb, Ω became smaller. These results revealed that Ω corresponds to the creep strength, indicating that the value of Ω can be estimated using the strengthening effects of the additive element.
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U2 - 10.4028/0-87849-462-6.95
DO - 10.4028/0-87849-462-6.95
M3 - Conference contribution
AN - SCOPUS:38349112855
SN - 0878494626
SN - 9780878494620
T3 - Materials Science Forum
SP - 95
EP - 98
BT - Selected, peer reviewed papers from The Sixth Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
PB - Trans Tech Publications Ltd
T2 - 6th Pacific Rim International Conference on Advanced Materials and Processing, PRICM 6
Y2 - 5 November 2007 through 9 November 2007
ER -