TEST METHOD OF STRESS CORROSION CRACK DEVELOPMENT AND TESTING EQUIPMENT THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a test method of stress corrosion crack development capable of evaluating a crack developing speed even under a condition of a low load/low stress magnification coefficient, and to provide testing equipment therefor.;SOLUTION: The testing equipment of stress corrosion crack development is constituted so as to measure a stress corrosion crack developing speed under the condition of a predetermined load or stress magnification coefficient and has a testpiece 11 having a pre-crack 15 including at least one of a crack and pitting preliminarily introduced into its one side, a loading means (e.g., bending fixture 12) for causing tensile stress in the pre-crack 15 of the testpiece 11 and a corossion liquid impregnation means (e.g., corrosion liquid storage tank 13) for immersing at least the pre-crack 15 of the testpiece 11 in a corrosion liquid 14.;COPYRIGHT: (C)2008,JPO&INPIT