Microstructural properties controlling hydrogen environment embrittlement of cold worked 316 type austenitic stainless steels

Michler, Thorsten; Naumann, Jörg; Höck, Martin; Berreth, Karl; Balogh, Michael P.; Sattler, Erich

doi:10.1016/j.msea.2015.01.054

Cited by 47 publications

(15 citation statements)

References 58 publications

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“…Figure 8 represents the XRD results of stainless steel 316L samples before and after immersion test. It is found that there are three peaks were obtained from the diffractograms and all peaks belong to austenite (pure γ structure) which is the main structure of stainless steel 316L namely, (111) γ, (200) γ and (220) γ [16]. Remarkably, there was no metal hydride detected in the samples even though many pits were observed on the surface of the samples especially after one day (24 hours) immersion as shown in Figure 6d.…”

Section: Figure 6 Sem Images Of Stainless Steel 316l After Electrochmentioning

confidence: 92%

Hydrogen Embrittlement of 316L Stainless Steels Exposed in 1.0M Hydrochloric Acid Solution

Hadi¹,

Saud²,

Hamzah³

et al. 2019

ACSM

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This paper aims to determine the different sources of hydrogen that cause hydrogen embrittlement in ferrous materials. The 316L stainless steel was selected as the research object, and subjected to immersion and electrochemical tests in 1.0M HCl solution. The hardness and tensile strength of the test samples were measured before and after hydrogen embrittlement. The hydrogen, which exists in the form of hydrides, was detected through Xray diffractometry (XRD), while the fracture profile and microstructure of the samples were observed through optical microscopy and scanning electron microscopy (SEM), respectively. The results show that the hydrogen ions diffused into the surface of the steel, forming iron hydrides. In this way, the hardness of the steel was enhanced, and brittle failure occurred under tensile load; the amount of hydrides and the probability of hydrogen embrittlement increase with the immersion time in the acid solution; the sample immersed in 1.0M HCl for one day presented the most prominent hydrogen embrittlement, i.e. the highest hardness and lowest ductility. The research results provide insights into the occurrence of hydrogen embrittlement in ferrous materials.

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Section: Figure 6 Sem Images Of Stainless Steel 316l After Electrochmentioning

confidence: 92%

Hydrogen Embrittlement of 316L Stainless Steels Exposed in 1.0M Hydrochloric Acid Solution

Hadi¹,

Saud²,

Hamzah³

et al. 2019

ACSM

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show abstract

“…(5) and (6). The Burger´s Vector could be correlated to the lattice parameter (a) for both austenite (face-centered cubic lattice) and ferrite (bodycentered cubic lattice) 18 . The microstrain is estimated by the Stokes and Wilson Method (eq.…”

Section: (3) (4)mentioning

confidence: 99%

In Situ Synchrotron Radiation Measurements During Axial Strain In Hydrogen Cathodically Charged Duplex Stainless Steel SAF 2205

Hoyos

Rodrı́guez

et al. 2017

Mat. Res.

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The objective of this work is the evaluation of hydrogen effects on the martensitic transformation and strain hardening in Duplex Stainless Steels (DSS) SAF 2205 (UNS S32205/S31803). DSS are two-phase alloys (austenite and ferrite), which are used for applications requiring high mechanical strength, in corrosive environments. Therefore, it is necessary a better understanding of the phenomena involved on the hydrogen embrittlement. For this, in situ measurements of X-ray diffraction were made during tensile test in H 2 cathodically charging DSS 2205. The hydrogen charging reduces the stress relaxation, reducing the ductility and suppressing the hydrogen-induced austenitic to martensitic transformation. In addition, it also reduces the strain hardening (dislocation multiplication) in austenite. The strain hardening seems to have a higher influence than martensitic transformation on fracture process, even in absence of hydrogen.

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“…Therefore, hydrogen embrittlement has attracted much attention recently. [6][7][8][9][10][11][12][13][14][15][16] Matano et al 8) reported an evaluation of deformation microstructures and associated lattice defects in SUS 304 and SUS 316 L steels by positron lifetime measurements detecting vacancy-type defects created during tensile straining. Nagao et al 10) investigated the mechanism of fracture surface morphology changes at intergranular and quasi-cleavage in a hydrogen embrittled lath martensitic steel.…”

Section: Introductionmentioning

confidence: 99%

Effect of Surface Conditions and Relative Humidity on Hydrogen Permeation Behavior of Zinc Coated Steels during Wet and Dry Corrosion

Sakairi

Takagi

2016

ISIJ Int.

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Microstructural properties controlling hydrogen environment embrittlement of cold worked 316 type austenitic stainless steels

Cited by 47 publications

References 58 publications

Hydrogen Embrittlement of 316L Stainless Steels Exposed in 1.0M Hydrochloric Acid Solution

Hydrogen Embrittlement of 316L Stainless Steels Exposed in 1.0M Hydrochloric Acid Solution

In Situ Synchrotron Radiation Measurements During Axial Strain In Hydrogen Cathodically Charged Duplex Stainless Steel SAF 2205

Effect of Surface Conditions and Relative Humidity on Hydrogen Permeation Behavior of Zinc Coated Steels during Wet and Dry Corrosion

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