Next Article in Journal
Dry Rolling/Sliding Wear of Bainitic Rail Steels under Different Contact Stresses and Slip Ratios
Next Article in Special Issue
Strain Localizations in Notches for a Coarse-Grained Ni-Based Superalloy: Simulations and Experiments
Previous Article in Journal
Fabrication and Characterisation of Aligned Discontinuous Carbon Fibre Reinforced Thermoplastics as Feedstock Material for Fused Filament Fabrication
Previous Article in Special Issue
Inverse Method to Determine Fatigue Properties of Materials by Combining Cyclic Indentation and Numerical Simulation
Article

Addressing H-Material Interaction in Fast Diffusion Materials—A Feasibility Study on a Complex Phase Steel

1
Materials Center Leoben, Forschungs GmbH, Roseggerstrasse 12, 8700 Leoben, Austria
2
Department Materials Science, Chair of Materials Physics, Montanuniversität Leoben, Jahnstrasse 12, 8700 Leoben, Austria
3
Max-Planck-Institut für Plasmaphysik, Boltzmannstr. 2, D-85748 Garching, Germany
4
Institut für Werkstoffkunde, Fügetechnik und Umformtechnik, Technische Universität Graz, Rechbauerstrasse 12, 8010 Graz, Austria
5
Department Materials Science, Chair of Physically Metallurgy and Metallic Materials, Montanuniversität Leoben, Roseggerstrasse 12/Max-Tendler-Strasse 9, 8700 Leoben, Austria
*
Author to whom correspondence should be addressed.
Materials 2020, 13(20), 4677; https://doi.org/10.3390/ma13204677
Received: 26 August 2020 / Revised: 5 October 2020 / Accepted: 16 October 2020 / Published: 20 October 2020
(This article belongs to the Special Issue Recent Advances in Mechanisms of Fracture and Fatigue)
Hydrogen embrittlement (HE) is one of the main limitations in the use of advanced high-strength steels in the automotive industry. To have a better understanding of the interaction between hydrogen (H) and a complex phase steel, an in-situ method with plasma charging was applied in order to provide continuous H supply during mechanical testing in order to avoid H outgassing. For such fast-H diffusion materials, only direct observation during in-situ charging allows for addressing H effects on materials. Different plasma charging conditions were analysed, yet there was not a pronounced effect on the mechanical properties. The H concentration was calculated while using a simple analytical model as well as a simulation approach, resulting in consistent low H values, below the critical concentration to produce embrittlement. However, the dimple size decreased in the presence of H and, with increasing charging time, the crack propagation rate increased. The rate dependence of flow properties of the material was also investigated, proving that the material has no strain rate sensitivity, which confirmed that the crack propagation rate increased due to H effects. Even though the H concentration was low in the experiments that are presented here, different technological alternatives can be implemented in order to increase the maximum solute concentration. View Full-Text
Keywords: advanced high-strength steels; hydrogen embrittlement; in-situ testing; scanning electron microscopy; plasma charging advanced high-strength steels; hydrogen embrittlement; in-situ testing; scanning electron microscopy; plasma charging
Show Figures

Figure 1

MDPI and ACS Style

Massone, A.; Manhard, A.; Drexler, A.; Posch, C.; Ecker, W.; Maier-Kiener, V.; Kiener, D. Addressing H-Material Interaction in Fast Diffusion Materials—A Feasibility Study on a Complex Phase Steel. Materials 2020, 13, 4677. https://doi.org/10.3390/ma13204677

AMA Style

Massone A, Manhard A, Drexler A, Posch C, Ecker W, Maier-Kiener V, Kiener D. Addressing H-Material Interaction in Fast Diffusion Materials—A Feasibility Study on a Complex Phase Steel. Materials. 2020; 13(20):4677. https://doi.org/10.3390/ma13204677

Chicago/Turabian Style

Massone, Agustina, Armin Manhard, Andreas Drexler, Christian Posch, Werner Ecker, Verena Maier-Kiener, and Daniel Kiener. 2020. "Addressing H-Material Interaction in Fast Diffusion Materials—A Feasibility Study on a Complex Phase Steel" Materials 13, no. 20: 4677. https://doi.org/10.3390/ma13204677

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop