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Meeting MS&T22: Materials Science & Technology
Symposium Steels for Sustainable Development
Presentation Title Influence of C and N on Hydrogen Embrittlement in 17Cr-10Ni-6Mn Stable Austenitic Stainless Steel
Author(s) Yeonggeun Cho, Hyung-Jun Cho, Sung-Joon Kim
On-Site Speaker (Planned) Yeonggeun Cho
Abstract Scope 17Cr-10Ni-6Mn stable austenitic stainless steels containing 0.2 wt.% of C or N were hydrogen charged and tensile tested to compare the effect of interstitial elements on hydrogen embrittlement (HE). Addition of C or N increased the tensile strength and decreased the HE susceptibility, and improvement of HE resistance was greater by C than by N. Improvement of strength and HE resistance by C or N addition are mainly attributed to expansion of austenite lattice and increase of activation energy for hydrogen desorption. N showed lower solid solution hardening and less degree of twinning than C, which resulted in lower tensile strength in N-added steel. Activation energy for hydrogen desorption was higher in C-added steels, indicating that C was more effective on decreasing the hydrogen diffusivity, which corresponds to smaller depth of hydrogen-affected zone. In addition, N promoted planar slip and accelerated localized deformation, which contributed to higher HE susceptibility.
Proceedings Inclusion? Undecided

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Cyclic Deformation and Strain Localization of Ferrite-pearlite Low Alloy Steel under Low-cycle Fatigue
Development of Evaluation Method of Low Alloy Steel in Hydron Environment Using Concurrent Cathodic Hydrogen Charging
Development of Ultra-high Strength TWIP Steel with Increased Corrosion Resistance
Evaluation of Heavy Gauges 690 MPa-class Offshore Steel Racks Required in Modern Wind Turbine Installation Vessels
Exploring the Impact of N Solubility and Trace Elements on the Creep Properties of P92 Steel
F-3: Suitability of 17-4 PH Stainless Steels as Choice Material for Compression Pumps Used in CCS (Carbon Capture And Storage) Systems
Influence of C and N on Hydrogen Embrittlement in 17Cr-10Ni-6Mn Stable Austenitic Stainless Steel
Low-density, Medium-Mn Steels for Lightweighting: Influence of Al content on Microstructure and Tensile Properties
Maximizing Scrap Recycling by Designing Cu Tolerant Steel Compositions
Mechanical Property Alterations through Hydrogen Trapping by Nanocarbide Dispersions in Steels
Microstructural Engineering of High Mn Duplex Steel to Achieve Low-cost, High-performance Solutions for Hydrogen Storage and Delivery
Probing Hydrogen-assisted Phase Transformations in Austenitic Stainless Steels Using Synchrotron X-ray Diffraction
Steel Developments for the Global Energy Transition
The Essence of Mo and Ni Alloying in Steels for Renewable Power Generation
Through Thickness Microstructural Features for Optimum Ductility Performance In High Pressure Gaseous Hydrogen Pipelines

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