T/CNS 48-2021 The method for testing the initiation of stress corrosion cracking in metal materials under high-temperature and high-pressure water conditions in nuclear power plants
T/CNS 48-2021 The method for testing the initiation of stress corrosion cracking in metal materials under high-temperature and high-pressure water conditions in nuclear power plants
Basic Information
Scope
Scope: This document is applicable to the evaluation of the stress corrosion resistance of metal materials used in nuclear power plants in high-temperature and high-pressure water. The specified method can evaluate the stress corrosion crack initiation behavior of circular cross-sectional specimens with a certain gauge length under axial displacement or load control in water media at 360°C and 20MPa or below. Product components and other special-shaped specimens can refer to this document for implementation; Main technical content: This document specifies the test methods and related technical requirements for stress corrosion crack initiation of metal materials used in nuclear power plants under high-temperature and high-pressure water conditions.