ISO 16573-1:2020
Steel — Measurement method for the evaluation of hydrogen embrittlement resistance of high strength steels — Part 1: Constant load test
This document provides a method for the evaluation of the resistance to hydrogen embrittlement (i.e. hydrogen delayed fracture) using constant loading test with hydrogen pre-charged specimens. The amount of hydrogen content absorbed in the specimens is analysed quantitatively by thermal desorption analysis such as gas chromatography, mass spectrometry and so on. In the case of hydrogen continuous charging such as hydrogen absorption in aqueous solution at free corrosion potential, hydrogen absorption in atmospheric corrosion environments and hydrogen absorption in high pressure hydrogen gas, the evaluation method is also briefly described. This method is mainly applicable to the evaluation of hydrogen embrittlement resistance of high strength steel bolts.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Specimen preparation
6 Hydrogen charging methods
6.1 General
6.2 Cathodic charge method
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 Constant loading test
8.1 Constant loading test procedures
8.2 Presentation of the results
9 Post-test specimen treatment
10 Hydrogen thermal desorption analysis
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
6 Hydrogen charging methods
6.1 General
6.2 Cathodic charge method
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 Constant loading test
8.1 Constant loading test procedures
8.2 Presentation of the results
9 Post-test specimen treatment
10 Hydrogen thermal desorption analysis
10.1 General
10.2 Experimental apparatus (gas chromatograph)
10.3 Experimental apparatus (mass spectrometry)
11 Test report
Bibliography