Hydrogen Induced Damages in Metallic Materials

A special issue of Metals (ISSN 2075-4701).

Deadline for manuscript submissions: closed (29 February 2024) | Viewed by 2092

Special Issue Editors


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Guest Editor
College of Materials Science and Engineering, Hunan University, Changsha, China
Interests: hydrogen retention; hydrogen induced embrittlement and cracking; irradiation damage; multi-scale modeling
Institute of Composite Materials, Shanghai Jiaotong University, Shanghai, China
Interests: first-principles calculations; molecular dynamics simulations; high throughput computation and machine learning in materials science; fracture mechanics; design of high strength metals and alloys; hydrogen embrittlement in metals and alloys; metal processing

Special Issue Information

Dear Colleagues,

As the most abundant element in the known universe, hydrogen exists in practically all service environments, such as the core of nuclear fusion reactors; hydrogen production, storage, and transportation; corrosive environments; and fuel cell electric vehicles. Exposing metal materials to hydrogen-rich environments can cause a range of damages, often resulting in premature cracking, ductility loss, bubbling/blistering, and swelling. These damages will deteriorate the performance of metallic materials, posing a great threat to the safety and efficiency of many applications. It is therefore crucial to understand the fundamental mechanisms of hydrogen-induced damages in metallic materials.

With the rapid development of computing of efficient and simulation methods, numerical modeling has become a powerful tool for investigating the microscopic behavior of hydrogen in metallic materials. This Special Issue aims to bring together researchers and highlight the latest innovations and scientific finding in related fields. We invite you to submit original research on the hydrogen-induced damages in metallic materials. The topics of interest in this Special Issue include but are not limited to the effect of hydrogen on mechanical performance, hydrogen–defect interaction, kinetics of hydrogen ingress, diffusion, trapping, and desorption, hydrogen damage mechanisms, and predictions regarding materials properties in hydrogen-rich environments.

Prof. Dr. Jie Hou
Dr. Xiao Zhou
Guest Editor

Manuscript Submission Information

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Keywords

  • hydrogen damage
  • hydrogen embrittlement
  • stress corrosion
  • metallic materials
  • crystal defects
  • modeling and simulation
  • structure and properties

Published Papers (2 papers)

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Research

25 pages, 8761 KiB  
Article
Hydrogen-Assisted Microdamage of Eutectoid Pearlitic Steel in the Presence of Notches: The Tearing Topography Surface
by Jesús Toribio
Metals 2023, 13(8), 1365; https://doi.org/10.3390/met13081365 - 29 Jul 2023
Cited by 1 | Viewed by 791
Abstract
This paper studies the hydrogen-assisted microdamage (HAMD) in fully-pearlitic steel. A detailed analysis is provided of the HAMD region in axisymmetric round-notched samples of high-strength eutectoid pearlitic steel under hydrogen embrittlement environmental conditions. The microscopic appearance and evolution of the hydrogen affected region is [...] Read more.
This paper studies the hydrogen-assisted microdamage (HAMD) in fully-pearlitic steel. A detailed analysis is provided of the HAMD region in axisymmetric round-notched samples of high-strength eutectoid pearlitic steel under hydrogen embrittlement environmental conditions. The microscopic appearance and evolution of the hydrogen affected region is analyzed from the initiation (sub-critical) to the fracture (critical) situations. The use of very distinct notched samples and their associated stress distributions in the vicinity of the notch tip allows for a study of the key role of the triaxial stress state on hydrogen diffusion and micro-cracking (or micro-damage). The microscopic appearance of the hydrogen-affected zone (the so-called tearing topography surface) resembles micro-damage, micro-cracking or micro-tearing at a micro- or nano-scale due to hydrogen degradation, thus affecting the notch tensile strength and producing hydrogen embrittlement. A micromechanical model is proposed to explain these hydrogen effects on the material on the basis of the lamellar micro- and nano-structure of the pearlitic steel. Full article
(This article belongs to the Special Issue Hydrogen Induced Damages in Metallic Materials)
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12 pages, 16094 KiB  
Communication
Effect of Proton Irradiation on Zr/Nb Nanoscale Multilayer Structure and Properties
by Roman Laptev, Dmitriy Krotkevich, Anton Lomygin, Ekaterina Stepanova, Natalia Pushilina, Egor Kashkarov, Aleksandr Doroshkevich, Alexey Sidorin, Oleg Orlov and Vladimir Uglov
Metals 2023, 13(5), 903; https://doi.org/10.3390/met13050903 - 6 May 2023
Cited by 1 | Viewed by 976
Abstract
The effect of proton irradiation on the structure, phase composition, defect state and nanohardness of Zr/Nb nanoscale multilayer coatings was investigated. Preservation of the Zr/Nb layered structure with 50 and 100 nm thick layers, was observed after irradiation with protons at 1720 keV [...] Read more.
The effect of proton irradiation on the structure, phase composition, defect state and nanohardness of Zr/Nb nanoscale multilayer coatings was investigated. Preservation of the Zr/Nb layered structure with 50 and 100 nm thick layers, was observed after irradiation with protons at 1720 keV energy and 3.4 × 1015, 8.6 × 1015 and 3.4 × 1016 ions/cm2 fluences, and the interfaces remained incoherent. In the Zr/Nb nanoscale multilayer coatings with individual layer thicknesses of 10 and 25 nm, there were insignificant fluctuations in interplanar distance, which were influenced by changes in irradiation fluence, and the interfaces were partially destroyed and became semicoherent. Changing irradiation fluence in the investigated ranges led to a decrease in the nanohardness of the Zr/Nb nanoscale multilayer coatings with individual layer thicknesses of 10–50 nm. Variable-energy positron Doppler broadening analysis revealed that these changes are primarily caused by peculiarities of the localization and accumulation of the embedded ions and do not cause a significant increase in the S-parameters of Zr/Nb nanoscale multilayer coatings with a layer thickness less than 100 nm. Full article
(This article belongs to the Special Issue Hydrogen Induced Damages in Metallic Materials)
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