ISO 7539-11:2013 PDF

Name: ISO 7539-11:2013 — Corrosion of metals and alloys — Stress corrosion testing — Part 11: Guidelines for testing the resistance of metals and alloys to hydrogen embrittlement and hydrogen-assisted cracking
SKU: ISO 7539-11:2013
Price: 25 EUR
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Corrosion of metals and alloys — Stress corrosion testing — Part 11: Guidelines for testing the resistance of metals and alloys to hydrogen embrittlement and hydrogen-assisted cracking

Название (английский):

ISO 7539-11:2013

Corrosion of metals and alloys — Stress corrosion testing — Part 11: Guidelines for testing the resistance of metals and alloys to hydrogen embrittlement and hydrogen-assisted cracking

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 16
Дата публикации:: 9 апреля 2013 г.
Издание:: ISO IS 7539 edition 1 version 1
ICS:: 77.060

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Описание (английский):

ISO 7539-11:2013 gives guidance on the key features that should be accounted for in designing and conducting tests to evaluate the resistance of a metal or its alloy to hydrogen embrittlement and hydrogen-assisted cracking.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview - ISO 7539-11:2013 (Hydrogen embrittlement testing)

ISO 7539-11:2013 is part of the ISO 7539 series on stress corrosion testing. It provides guidance on the key features to consider when designing and conducting laboratory tests to evaluate the resistance of metals and alloys to hydrogen embrittlement and hydrogen‑assisted cracking. The document is advisory (guidelines) rather than prescriptive for specific test procedures, and it focuses on experimental design choices that influence hydrogen uptake, crack initiation and growth, and the interpretation of results.

Key technical topics and requirements

Factors affecting test behavior (Clause 3)

Dynamic plastic straining and strain rate - importance of film rupture, dislocation transport and localized hydrogen ingress.
Test time and hydrogen uptake - role of diffusivity and exposure time; relation between surface sources and subsurface cracking.
Temperature effects - impact on trap occupancy, diffusivity, solubility and ductility; transients and cooling rates can alter susceptibility.

Selection of test method (Clause 4)

Specimen type - choice between smooth, notched or pre‑cracked specimens affects hydrogen localization and ranking vs. quantitative fracture parameters.
Test duration and pre‑charging - guidance on using diffusion models (Fick’s law) to estimate charging times and steady‑state concentration profiles.
Load form and testing welds - considerations for static vs. dynamic loading, creep, and weld heat‑affected zones.
Hydrogen effusivity and measurement - recommend use of electrochemical permeation techniques (see ISO 17081) to assess uptake and transport where appropriate.

Post‑test evaluation - inspection and interpretation steps to relate laboratory observations to likely service behaviour.

Practical applications and who uses the standard

ISO 7539-11:2013 is useful for:

Materials, corrosion and fracture engineers designing hydrogen‑embrittlement test programs

Test laboratories developing comparative or failure‑analysis procedures

R&D teams evaluating new alloys, coatings or heat treatments for hydrogen service

Asset owners and engineers in sectors where hydrogen exposure or cathodic protection is relevant (energy, oil & gas, transport, hydrogen infrastructure)

The guidance helps users select specimen geometry, charging protocols, temperatures, and durations that meaningfully reflect service conditions or qualify materials for hydrogen‑sensitive applications.

Related standards

ISO 7539 series (Parts 1–9, 11) - general stress corrosion and specimen preparation methods

ISO 17081 - electrochemical hydrogen permeation (measurement of hydrogen uptake and transport)

Using ISO 7539-11:2013 in combination with test‑method standards (e.g., slow strain rate, pre‑cracked specimen methods) improves the relevance and comparability of hydrogen embrittlement and hydrogen‑assisted cracking assessments.

ISO 7539-11:2013 PDF

Abstract

Похожие стандарты

Overview - ISO 7539-11:2013 (Hydrogen embrittlement testing)

Key technical topics and requirements

Practical applications and who uses the standard

Related standards

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