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Meeting MS&T22: Materials Science & Technology
Symposium Steels for Sustainable Development
Presentation Title Microstructural Engineering of High Mn Duplex Steel to Achieve Low-cost, High-performance Solutions for Hydrogen Storage and Delivery
Author(s) Yuran Kong, Allison Kosberg, Pawan Kathayat, Lawrence Cho, Kip O. Findley , John G. Speer
On-Site Speaker (Planned) Yuran Kong
Abstract Scope The cost and reliability of hydrogen storage and delivery infrastructure represent primary obstacles to the broader use of hydrogen energy technologies. In particular, high Ni austenitic stainless steels have high resistance to hydrogen embrittlement but are relatively costly. To overcome this obstacle, the current study aims at designing Mn-alloyed duplex steels as economical alternatives to high Ni stainless steels for hydrogen service. The alloy design was guided by previously understood effects of alloying on austenite stacking fault energy, which is correlated with the mechanical stability of austenite and hydrogen embrittlement resistance. In the hot-rolled condition, the designed duplex steel showed superior hydrogen embrittlement resistance compared to the commercial 255 duplex stainless steel. The hydrogen embrittlement properties of the designed alloy were also evaluated in cold rolled and aged conditions. The microstructure-driven hydrogen distribution and deformation mechanisms in both the high Mn and stainless steels were characterized through fractographic analyses.


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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