Determination of Hydrogen Transport Behaviour in Boron-Manganese Steels Using Different Methods and Boundary Conditions

Kuhlmann, Matthias; Mitzschke, Niels; Jüttner, Sven

doi:10.3390/met9091007

Cited by 6 publications

(2 citation statements)

References 14 publications

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“…Figure 3 b shows typical hydrogen permeation curves of a 22MnB5 PHS. [ 99 ] The sample thickness and charging current density were kept constant to reveal the effect of different pH values of the electrolyte on the permeation behavior. It was found that the pH values imposed significant changes on the effective diffusion coefficient and the subsurface hydrogen concentration.…”

Section: Hydrogen Ingress and Characterizationmentioning

confidence: 99%

Hydrogen Embrittlement Evaluation and Prediction in Press‐Hardened Steels

Cao

Wang

Ngiam

et al. 2023

steel research int.

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The application of press-hardened steels (PHSs) in automotive body-in-white components using the hot-stamping technique is growing thanks to its impressive strength and formability. Unfortunately, hydrogen embrittlement (HE), an issue that generally exists in high-strength steels, impedes the PHSs rising application trend by causing catastrophic mechanical property degradation. Thus, detailed evaluation and prediction of HE risk throughout PHSs manufacture and service condition are necessary. This study highlights techniques to characterize the hydrogen content and distribution, techniques to evaluate HE susceptibility, and potential models to simulate the in-service performance of PHS. The survey of existing studies has revealed the gaps between laboratory measurement and industry application, including but not limited to 1) the accelerated experiment-induced discrepancies against real-life applications, 2) a selection of the appropriate HE indicators, 3) an accurate risk prediction model, and 4) efficient feedback to the industry based on both experimental and simulated results. Based on the review, future studies are expected to establish a conclusive HE evaluation standard for PHS.

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Section: Hydrogen Ingress and Characterizationmentioning

confidence: 99%

Hydrogen Embrittlement Evaluation and Prediction in Press‐Hardened Steels

Cao

Wang

Ngiam

et al. 2023

steel research int.

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“…Applications involve the analysis of "trapped" and "diffusible" hydrogen in steels [24,[27][28][29], hydrogen trapping [25] (see Figure 3), hydrogen-induced second phases, and hydrogen embrittlement mechanisms in Ti alloys [14,24] and hydrogen-storage materials [30]. TDS analysis, together with thermogravimetry, was also used to characterize Ti-H reference materials for the analysis of higher concentrations of hydrogen [31].…”

Section: Thermal Desorption Analysismentioning

confidence: 99%

Analysis of Hydrogen in Inorganic Materials and Coatings: A Critical Review

Weiss

2021

Hydrogen

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The currently used bulk analysis and depth profiling methods for hydrogen in inorganic materials and inorganic coatings are reviewed. Bulk analysis of hydrogen is based on fusion of macroscopic samples in an inert gas and the detection of the thereby released gaseous H2 using inert gas fusion (IGF) and thermal desorption spectroscopy (TDS). They offer excellent accuracy and sensitivity. Depth profiling methods involve glow discharge optical emission spectroscopy and mass spectrometry (GDOES and GDMS), laser-induced breakdown spectroscopy (LIBS), secondary ion mass spectrometry (SIMS), nuclear reaction analysis (NRA), and elastic recoil detection analysis (ERDA). The principles of all these methods are explained in terms of the methodology, calibration procedures, analytical performance, and major application areas. The synergies and the complementarity of various methods of hydrogen analysis are described. The existing literature about these methods is critically evaluated, and major papers concerning each method are listed.

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