TY - JOUR
T1 - Nonlinear ultrasonic characterization of precipitation in 17-4PH stainless steel
AU - Matlack, Kathryn H.
AU - Bradley, Harrison A.
AU - Thiele, Sebastian
AU - Kim, Jin Yeon
AU - Wall, James J.
AU - Jung, Hee Joon
AU - Qu, Jianmin
AU - Jacobs, Laurence J.
N1 - Publisher Copyright:
© 2014 Elsevier Ltd.
PY - 2015/4
Y1 - 2015/4
N2 - This research is part of a broader effort to develop a nondestructive evaluation technique to monitor radiation damage in reactor pressure vessel steels, the main contributor being copper-rich precipitates. In this work, 17-4PH stainless steel is thermally aged to study the effects of copper precipitates on the acoustic nonlinearity parameter. Nonlinear ultrasonic measurements using Rayleigh waves are performed on isothermally aged 17-4PH. Results showed a decrease in the acoustic nonlinearity parameter with increasing aging time, consistent with evidence of copper precipitation from hardness, thermo-electric power, transmission electron microscopy, and atom probe tomography measurements.
AB - This research is part of a broader effort to develop a nondestructive evaluation technique to monitor radiation damage in reactor pressure vessel steels, the main contributor being copper-rich precipitates. In this work, 17-4PH stainless steel is thermally aged to study the effects of copper precipitates on the acoustic nonlinearity parameter. Nonlinear ultrasonic measurements using Rayleigh waves are performed on isothermally aged 17-4PH. Results showed a decrease in the acoustic nonlinearity parameter with increasing aging time, consistent with evidence of copper precipitation from hardness, thermo-electric power, transmission electron microscopy, and atom probe tomography measurements.
KW - Nonlinear
KW - Nonlinear ultrasonic methods
KW - Precipitate hardening
KW - Rayleigh waves
KW - Thermal embrittlement
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U2 - 10.1016/j.ndteint.2014.11.001
DO - 10.1016/j.ndteint.2014.11.001
M3 - Article
AN - SCOPUS:84920659569
SN - 0963-8695
VL - 71
SP - 8
EP - 15
JO - NDT and E International
JF - NDT and E International
ER -