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Meeting MS&T22: Materials Science & Technology
Symposium Steels for Sustainable Development
Presentation Title Cyclic Deformation and Strain Localization of Ferrite-pearlite Low Alloy Steel under Low-cycle Fatigue
Author(s) Shutong Zhang, Rafael Arthur Giorjao, Jacque Berkson, Antonio J. Ramirez
On-Site Speaker (Planned) Shutong Zhang
Abstract Scope Low alloy steels are commonly used as the structural material for power generation and transportation infrastructure. Cyclic operations under severe thermal and mechanical loading challenge the endurance capacity of the structural steels that guarantees the structural integrity and the maintenance costs. In this study, the cyclic deformation and strain location of a ferrite-pearlite steel under low-cycle fatigue tests is investigated. Gleeble-based low-cycle fatigue tests were performed at 0.8%, 1.0%, 1.5% and 2.0% strain amplitudes at 250C. The impact of strain amplitudes upon microstructure deformation is evaluated through EBSD analysis and nanoindentation measurement. In addition, the evolution of microstructure during low-cycle fatigue is investigated at 1.0% strain amplitude. Interrupted test samples were obtained at the 5th cycle, 30th cycle, and 300th cycle and analyzed through EBSD. The study shows ferrite-pearlite grain boundaries are preferential location for strain accumulation, which increases strain amplitude and ferrite-pearlite strength incompatibility.


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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