Evaluation of susceptibility of high strength steels to delayed fracture by using cyclic corrosion test and slow strain rate test

Li, Songjie; Zhang, Zuogui; Akiyama, Eiji; Tsuzaki, Kaneaki; Zhang, Bo‐Ping

doi:10.1016/j.corsci.2010.02.005

Cited by 74 publications

(31 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…57) The present authors conducted CLT 58) and SSRT of CNRBSs corroded by CCT 59,60) and outdoor exposure 60,61) to take into account the hydrogen entry caused by corrosion and its influence on delayed fracture of high strength steels. To avoid hydrogen release from the steels which do not contain hydrogen traps such as carbides of V 29,53) and Ti, [54][55][56] the environment surrounding the specimen was kept wet during those tensile tests.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Delayed Fracture Property of High Strength Bolt Steels

Akiyama

2012

ISIJ Int.

Self Cite

View full text Add to dashboard Cite

Experimental studies attempting to evaluate the delayed fracture property of high strength bolt steels by using slow strain rate tests (SSRT) of circumferentially notched round bar specimens are reviewed in this paper. The relationship between the notch tensile strength (NTS) of the hydrogen-precharged specimens and the hydrogen content was approximated by power law relationship. It has been found that the local stress and the local diffusible hydrogen concentration control the occurrence of delayed fracture. To take into account the effect of hydrogen uptake from the environment, the notched bar specimens were subjected to cyclic corrosion test (CCT) and outdoor exposure, and their NTSs were measured using SSRT. The susceptibility of high strength steels to delayed fracture estimated from the decrease of NTS was correspondent to the fracture ratio of high strength bolts of the steels obtained by outdoor exposure tests, and was successfully evaluated with consideration of hydrogen uptake. Hydrogen entry behavior under CCT was monitored by electrochemical hydrogen permeation test, and continuous increase in hydrogen entry with growth of rust layer was observed. It is suggested that the "delay" of delayed fracture is the time required for the enhancement of the hydrogen entry efficiency.KEY WORDS: delayed fracture; hydrogen embrittlement; high strength steel; slow strain rate test; atmospheric corrosion; electrochemical hydrogen permeation; cyclic corrosion test; exposure test.

show abstract

Section: Introductionmentioning

confidence: 99%

Evaluation of Delayed Fracture Property of High Strength Bolt Steels

Akiyama

2012

ISIJ Int.

Self Cite

View full text Add to dashboard Cite

show abstract

“…According to the actual experimental conditions, the testing strain-rate is taken as 1×10 6 /s (Li et al, 2010;Kim et al, 2010;Nakano et al, 2012). The stress corrosion life curve declining with effective stress is shown in Fig.…”

Section: Damage Parameters Of Stress Corrosionmentioning

confidence: 99%

A nonlinear cumulative evolution model for corrosion fatigue damage

Han

Huang

Cao

et al. 2014

J. Zheijang Univ.-Sci.

View full text Add to dashboard Cite

Abstract:A nonlinear cumulative evolution model for corrosion fatigue damage was proposed. Corrosion fatigue damage was considered as a nonlinear cumulative result of stress corrosion damage and fatigue damage. The influences of stress corrosion damage and fatigue damage on corrosion fatigue damage and damage evolution life were studied from a phenomenological point of view. The relevant damage parameters were determined by the experimental results of the LY12CZ aluminum alloy, and the corrosion fatigue life evaluation model based on damage evolution law was established. The corrosion fatigue life predicted by evaluation model agrees well with the experimental result. The damage evolution model in this study can provide a new method for theoretical research and life prediction of corrosion fatigue.

show abstract

“…Some studies have focused on the hydrogen generated by atmospheric corrosion inducing the hydrogen embrittlement. [14][15][16][17][18][19][20] Tsuru et al reported the hydrogen entry process when the steel surface is covered by passive films and reported the hydrogen permeation through steels during wet and dry corrosion cycles. 15) With Zn and Zn alloys coatings are widely used to increase the corrosion resistance of steels [21][22][23] because the atmospheric corrosion rate of Zn is more than twenty times smaller than that of steels.…”

Section: Introductionmentioning

confidence: 99%

Effect of Surface Conditions and Specimen Composition on Hydrogen Permeation Behavior of Coated and Uncoated Steels during Wet and Dry Corrosion at a Constant Dew Point

Igarashi

Sakairi

2016

ISIJ Int.

View full text Add to dashboard Cite

A wet and dry corrosion test with a constant dew point was applied to investigate the effects of scratches and specimen composition on the hydrogen permeation behavior of Zn and 55 mass% Al-Zn coated steels as well as of uncoated steel. There was an etched size controlled scratch formed on specimens with a laser machining technique. The hydrogen permeation current was observed to be independent of the specimen composition and the area of the formed scratches, the corrosion products were observed after the tests. The hydrogen permeation current of the steels with the formed scratches decreased with number of cycles of the wet and dry tests. Except in the first cycle there were no significant changes in the current with cycle number on steels without formed scratches. It was suggested that the composition, scratch, and corrosion products play an important role in the hydrogen permeation behavior during wet and dry corrosion.

show abstract

Evaluation of susceptibility of high strength steels to delayed fracture by using cyclic corrosion test and slow strain rate test

Cited by 74 publications

References 29 publications

Evaluation of Delayed Fracture Property of High Strength Bolt Steels

Evaluation of Delayed Fracture Property of High Strength Bolt Steels

A nonlinear cumulative evolution model for corrosion fatigue damage

Effect of Surface Conditions and Specimen Composition on Hydrogen Permeation Behavior of Coated and Uncoated Steels during Wet and Dry Corrosion at a Constant Dew Point

Contact Info

Product

Resources

About