| 摘要 |
PROBLEM TO BE SOLVED: To provide a testpiece for the detection of stress corrosion cracking and capable of detecting and monitoring stress corrosion cracking and easily setting a stress value equivalent to an object to be monitored. SOLUTION: The testpiece 50 for detecting stress corrosion cracking and the state of stress corrosion cracking of a body to be tested which corrodes in contact with a corrosive medium is provided with both a testpiece main body 51 made of the same metallic material as that of the body to be tested and a stress providing mechanism 69 embedded in the testpiece main body 51 for providing a stress for the testpiece main body 51 without coming into contact with the corrosive medium. The testpiece 50 for the detection of stress corrosion cracking includes both a tube 51 made of the same metallic material as that of the body to be tested and having a closed tip and a pressing rod 52 capable of being inserted in the tube 51 and generates a stress specified on the basis of a pressing force of a tip 58 of the pressing rod 52 pressing a wall 57 in the inner part of the tube 51 in the directions of separating both end parts of the tube 51. COPYRIGHT: (C)2009,JPO&INPIT
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