TY - JOUR
T1 - Estimation of pitting damage induced by cavitation impacts
AU - Soyama, H.
AU - Futakawa, M.
AU - Homma, K.
N1 - Funding Information:
This work was partly supported by Japan Society for the Promotion of Science under Grant-in-Aid for Scientific Research (B)(2) 13555022 and 14350049.
PY - 2005/8/1
Y1 - 2005/8/1
N2 - In order to estimate the lifetime of the mercury target vessel of spallation neutron source which will be subjected to cavitation impacts, prediction methods of pitting damage induced by the cavitation impact were proposed. It is very important to estimate the incubation time, in which plastic deformation occurs without mass loss, because the thickness of the vessel is very small. In the present paper, two estimation methods were proposed. One of them is the estimation from erosion tests of severely damaged specimens by plotting the mass loss as a function of exposure time to cavitation on the logarithmic scales. Another method is the observation of plastic deformation pits on damaged surfaces at very early stages during incubation.
AB - In order to estimate the lifetime of the mercury target vessel of spallation neutron source which will be subjected to cavitation impacts, prediction methods of pitting damage induced by the cavitation impact were proposed. It is very important to estimate the incubation time, in which plastic deformation occurs without mass loss, because the thickness of the vessel is very small. In the present paper, two estimation methods were proposed. One of them is the estimation from erosion tests of severely damaged specimens by plotting the mass loss as a function of exposure time to cavitation on the logarithmic scales. Another method is the observation of plastic deformation pits on damaged surfaces at very early stages during incubation.
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U2 - 10.1016/j.jnucmat.2004.11.016
DO - 10.1016/j.jnucmat.2004.11.016
M3 - Conference article
AN - SCOPUS:23644437318
SN - 0022-3115
VL - 343
SP - 116
EP - 122
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - 1-3
T2 - Proceedings of the 6th International Workshop on Spallation Materials Technology IWSMT-6
Y2 - 30 November 2003 through 5 December 2003
ER -