T/CSCP T/CSCP0002-2024 The electrical quick evaluation method for stress corrosion sensitivity of pipeline steel

Scope

Scope: This standard is applicable to the rapid diagnosis and evaluation of stress corrosion sensitivity in the field and in the laboratory, and is suitable for evaluating the stress corrosion sensitivity of materials or structural components serving in water-phase media such as the ocean, soil, and atmospheric thin liquid films; This standard is applicable to the evaluation of stress corrosion sensitivity of components made of materials such as pipeline steel, carbon steel, low-alloy steel, stainless steel, non-ferrous metals, and their alloys; This standard is applicable to on-site corrosion management personnel. Users of the standard must possess the skills of dynamic potential polarization curve testing and basic electrochemical knowledge; Main technical content: This standard specifies the terms and definitions, principles, evaluation methods, electrochemical evaluation parameters of stress corrosion sensitivity (including: scan potential selection requirements, scan rate requirements, fitting results, etc.), and the calculation formula of the stress corrosion sensitivity index. This standard obtains relevant evaluation parameters based on the results of rapid scan electrochemical tests of the materials or structural components to be evaluated, and calculates the stress corrosion sensitivity index, thereby achieving rapid and reliable evaluation of the stress corrosion sensitivity of materials or components.

Development Information

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