Title:
EVALUATION METHOD AND DEVICE FOR STRESS CORROSION CRACK
Document Type and Number:
Japanese Patent JP2003121582
Kind Code:
A
Abstract:
To evaluate in-situ stress corrosion cracks in structural members of nuclear power plant and the like, and to analyze the mechanism of stress corrosion cracks.
A sample X is arranged in an autoclave 9 under a specific environmental atmosphere and specified stress is loaded from a step motor 3 for loading, by way of a shaft 1 holding the sample X to put the sample X under a stress-corrosion environment. By driving a step motor 7 for probe driving of a contact electrical resistance measuring unit 4, the probe 5 is contacted the sample X to measure the contact electric resistance and stress corrosion cracks of the sample X is evaluated in-situ, from the variation of the contact electrical resistance.
Inventors:
SHOJI TETSUO
JUHA PIPPO
JUHA PIPPO
Application Number:
JP2001320552A
Publication Date:
April 23, 2003
Filing Date:
October 18, 2001
Export Citation:
Assignee:
UNIV TOHOKU
International Classes:
G01N17/02; G01N27/04; G21C17/003; G21D1/00; (IPC1-7): G21C17/003; G01N17/02; G01N27/04; G21D1/00
Attorney, Agent or Firm:
Sugimura Kosaku (1 person outside)