Kinetics of Hydrogen Absorption and Desorption in Titanium

Suwarno, Suwarno; Yartys, V.A.

doi:10.9767/bcrec.12.3.810.312-317

Cited by 8 publications

(5 citation statements)

References 15 publications

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“…The first peak corresponds to hydrogen desorption from the δ(Ti,Zr) hydrides followed by δ → β + δ → β(Ti,Zr) transformation in the implanted layer occurring at the valley between Peak I and Peak II. There are no published results related to decomposition of TiZrH hydrides, but the similar low-temperature desorption peak at 350-450 • C has been observed by many authors who studied the desorption of hydrogen from TiH hydrides [43,44]. In addition, in situ X-ray diffraction studies also indicate hydrides decomposition at these temperatures [45,46].…”

Section: Thermal Desorption Analysismentioning

confidence: 69%

Hydrogen Interaction with Deep Surface Modified Zr-1Nb Alloy by High Intensity Ti Ion Implantation

Kashkarov

Ryabchikov

Kurochkin

et al. 2018

Metals

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A deep surface modified TiZr layer was fabricated by high-intensity low-energy titanium ion implantation into zirconium alloy Zr-1Nb. Gas-phase hydrogenation was performed to evaluate protective properties of the modified layer against hydrogen permeation into Zr-1Nb alloy. The effects of ion implantation and hydrogen on microstructure, phase composition and elemental distribution of TiZr layer were analyzed by scanning electron microscopy, X-ray diffraction, and glow-discharge optical emission spectroscopy, respectively. It was revealed that TiZr layer (~10 μm thickness) is represented by α′ + α(TiZr) lamellar microstructure with gradient distribution of Ti through the layer depth. It was shown that the formation of TiZr layer provides significant reduction of hydrogen uptake by zirconium alloy at 400 and 500 °C. Hydrogenation of the modified layer leads to refinement of lamellar plates and formation of more homogenous microstructure. Hydrogen desorption from Ti-implanted Zr-1Nb alloy was analyzed by thermal desorption spectroscopy. Hydrogen interaction with the surface modified TiZr layer, as well as its resistance properties, are discussed.

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Section: Thermal Desorption Analysismentioning

confidence: 69%

Hydrogen Interaction with Deep Surface Modified Zr-1Nb Alloy by High Intensity Ti Ion Implantation

Kashkarov

Ryabchikov

Kurochkin

et al. 2018

Metals

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“…TPD data analysis procedures are explained in [ 57 , 62 ]. The use of TPD with respect to hydrogenated Ti-based alloys is reported in [ 36 , 41 , 63 , 64 , 65 , 66 ].…”

Section: Methodsmentioning

confidence: 99%

The Effects of Hot Isostatic Pressing (HIP) and Heat Treatment on the Microstructure and Mechanical Behavior of Electron Beam-Melted (EBM) Ti–6Al–4V Alloy and Its Susceptibility to Hydrogen

Lulu-Bitton,

Navi,

Haroush

et al. 2024

Materials

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The effects of the secondary processes of Hot Isostatic Pressing (HIP) at 920 °C and Heat Treatment (HT) at 1000 °C of Electron Beam-Melted (EBM) Ti–6Al–4V alloy on the microstructure and hydrogen embrittlement (HE) after electrochemical hydrogen charging (EC) were investigated. Comprehensive characterization, including microstructural analysis, X-ray diffraction (XRD), thermal desorption analysis, and mechanical testing, was conducted. After HIP, the β-phase morphology changed from discontinuous Widmanstätten to a more continuous structure, 10 times and ~1.5 times larger in length and width, respectively. Following HT, the β-phase morphology changed to a continuous “web-like” structure, ~4.5 times larger in width. Despite similar mechanical behavior in their non-hydrogenated state, the post-treated alloys exhibit increased susceptibility to HE due to enhanced hydrogen penetration into the bulk. It is shown that hydrogen content in the samples’ bulk is inversely dependent on surface hydride content. It is therefore concluded that the formed hydride surface layer is crucial for inhibiting further hydrogen penetration and adsorption into the bulk and thus for reducing HE susceptibility. The lack of a hydride surface layer in the samples subject to HIP and HT highlights the importance of choosing secondary treatment process parameters that will not increase the continuous β-phase morphology of EBM Ti–6Al–4V alloys in applications that involve electrochemical hydrogen environments.

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“…Suwarno et al. [ 65 ] investigated the transformation of δ-TiH 2 into α-TiH X after dehydrogenation. According to the results, hydrogen decomposition took two steps, as two peaks were observed.…”

Section: Dehydrogenation Processmentioning

confidence: 99%

Influence of processing parameters on dehydrogenation of TiH2 in the preparation of Ti–Nb: A review

Sa'aidi

Farrahnoor

Hussain

2022

Heliyon

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Kinetics of Hydrogen Absorption and Desorption in Titanium

Cited by 8 publications

References 15 publications

Hydrogen Interaction with Deep Surface Modified Zr-1Nb Alloy by High Intensity Ti Ion Implantation

Hydrogen Interaction with Deep Surface Modified Zr-1Nb Alloy by High Intensity Ti Ion Implantation

The Effects of Hot Isostatic Pressing (HIP) and Heat Treatment on the Microstructure and Mechanical Behavior of Electron Beam-Melted (EBM) Ti–6Al–4V Alloy and Its Susceptibility to Hydrogen

Influence of processing parameters on dehydrogenation of TiH2 in the preparation of Ti–Nb: A review

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