ISO 16573-2:2022
Steel — Measurement method for the evaluation of hydrogen embrittlement resistance of high-strength steels — Part 2: Slow strain rate test
This document provides an evaluation method of the resistance of high-strength steels to hydrogen embrittlement (i.e. hydrogen delayed fracture) using slow strain rate test with hydrogen pre-charged specimens. The amount of hydrogen absorbed in the specimens is analysed quantitatively by thermal desorption analysis such as gas chromatography, mass spectrometry and so on. This document includes testing methods for either smooth or notched specimens.
It is applicable to ferritic base steels.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Specimen preparation
5.1 General
5.2 Cylindrical type specimen
5.3 Flat type specimen
6 Hydrogen charging methods
6.1 General
6.2 Cathodic charging
6.2.1 Hydrogen charging solution
6.2.2 Hydrogen charging conditions
6.3 Hydrogen absorption in aqueous solution at free corrosion potential
6.4 Hydrogen absorption in atmospheric corrosion environments
6.5 Hydrogen absorption in high pressure hydrogen gas
7 Preparation of electroplating solution and electroplating condition
7.1 General
7.2 Electroplating solution
7.3 Electroplating conditions
8 Slow strain rate test
8.1 General
8.2 Procedure
8.3 Presentation of the results
9 Post-test specimen treatment
10 Hydrogen thermal desorption
10.1 General
10.2 Experimental apparatus (gas chromatograph)
10.3 Experimental apparatus (mass spectrometry)
11 Test report
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Specimen preparation
5.1 General
5.2 Cylindrical type specimen
5.3 Flat type specimen
6 Hydrogen charging methods
6.1 General
6.2 Cathodic charging
6.2.1 Hydrogen charging solution
6.2.2 Hydrogen charging conditions
6.3 Hydrogen absorption in aqueous solution at free corrosion potential
6.4 Hydrogen absorption in atmospheric corrosion environments
6.5 Hydrogen absorption in high pressure hydrogen gas
7 Preparation of electroplating solution and electroplating condition
7.1 General
7.2 Electroplating solution
7.3 Electroplating conditions
8 Slow strain rate test
8.1 General
8.2 Procedure
8.3 Presentation of the results
9 Post-test specimen treatment
10 Hydrogen thermal desorption
10.1 General
10.2 Experimental apparatus (gas chromatograph)
10.3 Experimental apparatus (mass spectrometry)
11 Test report
Bibliography