TY - JOUR
T1 - Characterization of high temperature creep properties in recrystallized 12cr-ods ferritic steel claddings
AU - Ukai, Shigeharu
AU - Okuda, Takanari
AU - Fujiwara, Masayuki
AU - Kobayashi, Toshimi
AU - Mizuta, Syunji
AU - Nakashima, Hideharu
PY - 2002/8
Y1 - 2002/8
N2 - The high temperature strengthening mechanism of previously manufactured 12Cr-ODS ferritic steel claddings was clarified. In the recrystallized 12Cr-2W-0.3Ti-0.24Y2O3-ODS ferritic steel cladding, αY2TiO5 type complex oxide formation was responsible for the drastic reduction of oxide particle size and the resulting shortened distance between particles, which led to superior internal creep rupture strength at 973 K because of the high resistance to gliding dislocation. Internal creep deformation was considered to be controlled by the grain boundary sliding associated with grain morphology: the near Σ11, Σ and Σ19 coincidence boundaries with a (110) common axis.
AB - The high temperature strengthening mechanism of previously manufactured 12Cr-ODS ferritic steel claddings was clarified. In the recrystallized 12Cr-2W-0.3Ti-0.24Y2O3-ODS ferritic steel cladding, αY2TiO5 type complex oxide formation was responsible for the drastic reduction of oxide particle size and the resulting shortened distance between particles, which led to superior internal creep rupture strength at 973 K because of the high resistance to gliding dislocation. Internal creep deformation was considered to be controlled by the grain boundary sliding associated with grain morphology: the near Σ11, Σ and Σ19 coincidence boundaries with a (110) common axis.
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U2 - 10.1080/18811248.2002.9715271
DO - 10.1080/18811248.2002.9715271
M3 - Article
AN - SCOPUS:0036698994
VL - 39
SP - 872
EP - 879
JO - Journal of Nuclear Science and Technology
JF - Journal of Nuclear Science and Technology
SN - 0022-3131
IS - 8
ER -