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Meeting MS&T22: Materials Science & Technology
Symposium Steels for Sustainable Development
Presentation Title Low-density, Medium-Mn Steels for Lightweighting: Influence of Al content on Microstructure and Tensile Properties
Author(s) Tomas Scuseria, Kelcey Garza, Dean Pierce, Jerry Arnold, Amy Clarke, Kester Clarke
On-Site Speaker (Planned) Tomas Scuseria
Abstract Scope Low-density steels are a candidate for increased energy savings and performance for Advanced High Strength Steel (AHSS). Al additions (5-7 wt%) to medium-Mn steels provide lightweighting through density reductions, while promoting duplex microstructures with excellent tensile properties. Concurrently, Al stabilizes ferrite at high temperatures, creating local chemical gradients and banded microstructures that are sensitive to processing, in addition to altering the austenite stability and work-hardening characteristics, such as TRIP, TWIP, or planar slip. This influence of Al must be deconvoluted to establish robust alloy design strategies. Fe-Mn-Al-C alloys were produced into sheets and characterized in the cold-rolled and intercritically annealed condition. Increasing Al additions were found to be detrimental to tensile properties at fixed Mn and C content, while increasing the Mn and C content to suppress high ferrite fractions improved specific strength. Additionally, cryogenic treatment and tempering was used to study martensite-containing microstructures for increased strength.


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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