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Meeting MS&T21: Materials Science & Technology
Symposium Advances in Ferrous Metallurgy
Presentation Title Effect of Alloying Content on Fractional Softening Behavior and Microstructural Evolution During Double-twist Torsion Testing of Microalloyed Steels
Author(s) Trevor J. Ballard, Emmanuel De Moor
On-Site Speaker (Planned) Trevor J. Ballard
Abstract Scope The non-recrystallization temperature (T<sub>nr</sub>) represents an important parameter in the development of controlled rolling schedules. T<sub>nr</sub> is commonly defined as the temperature below which complete static recrystallization ceases to occur. While T<sub>nr</sub> is defined as a single temperature, partial recrystallization occurs over a wide temperature range. The current study applies a double-twist torsion test to a set of microalloyed steels with varying titanium, niobium, and vanadium contents. The partial recrystallization temperature regime was predicted for each alloy using fractional softening calculations. Increasing niobium reduced the fractional softening, while varying titanium and vanadium had minimal effect. Interrupted double-twist torsion tests were conducted to study the microstructural evolution at temperatures above, within, and below the partial recrystallization regime. The prior austenite microstructure was evaluated to assess the correspondence between the recrystallized fraction and fractional softening. The precipitation state was evaluated to show the effect of microalloying content on recrystallization and softening behavior.


3D Non-destructive Characterization of Texture Evolution in Electrical Steels with Lab-based Diffraction Contrast Tomography
Cost Modeling and Life Cycle Analysis of Low-Emissions Iron Production
Development of Fine Grained Steel for Cold Heading Application
Effect of Alloying Content on Fractional Softening Behavior and Microstructural Evolution During Double-twist Torsion Testing of Microalloyed Steels
Effect of CO2 Injection into Blast Furnace Tuyeres on Smelting Parameters
Evaluation of Different Austenitization Sub-Models for 22MnB5 Steel Using Bayesian Model Selection Technique
High Strength Low Alloy Steels strengthened by Heusler precipitates
Hole Expansion Performance of Three High Strength Steels: Observation of Room Temperature Strain Ageing Phenomena
Impact of Alloy Composition on the Hot Ductility of Steel during Continuous Casting
New Roll Alloys Concepts Using in Finishing Stands of Rebar Rolling
Radiative Properties of Al-Si Coated 22MnB5 Steel
Reducing the Effects of Texture on Phase Fraction Measurement of Retained Austenite Using X-ray Diffraction
Research on the Phosphate Capacity of CaO-FeO-MgO-SiO2-MnO-TiO2-V2O5-P2O5 Slags
Structure Optimizations of Submerged Entry Nozzle in a Steel Slab Continuous Casting Mold
Studying Processing – Microstructure – Mechanical Property Correlation in a Multi-phase Advanced High Strength Steel
The Effect of Energy-power Parameters of Hot Rolling on Structure and Properties of Low Alloyed Steels
The Study and Optimization of Calcium Flux for Self-fluxed Pellets
Thermodynamics and Kinetics of Coke Breeze Combustion Under Different Oxygen Content in Sintering Process

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