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Meeting MS&T22: Materials Science & Technology
Symposium Advances in Ferrous Metallurgy
Presentation Title Stereological Analysis for Microstructure Quantification in Advanced High Strength Steels
Author(s) Brian Lin, Narayan Pottore, Sriram Sadagopan, Jiahao Cheng, Xiaohua Hu
On-Site Speaker (Planned) Brian Lin
Abstract Scope The microstructure statistics of two industrially produced advanced high strength quench and partition sheet steels was analyzed by stereology. Planes in the rolling, transverse, and normal direction through the thickness were characterized by both SEM and EBSD. Grain properties, such as size and shape, for different phases, including ferrite, martensite, and retained austenite were quantified. In the intercritically annealed quench and partition steel, the ferrite features were pancaked in comparison to the martensite and retained austenite. In comparison, in the supercritical annealed quench and partition steel, the prior austenite grains were mostly equiaxed. These microstructure statistics were collected with interest of synthetically constructing statistically representative volumes, which can be later used in computational models to predict deformation behaviors.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Rapid CCT Predictor for Low Alloys Steels and its Application to Compositionally Heterogeneous Material
Adapting HSLA-100 to Thick-Section Forgings
Characterization of Ductility Limiting Precipitation at High Temperatures in HSLA steels
Dielectric Behavior of Steel and Its Application in Structural Self-powering
Effect of Leaching Process Variables on the Reaction Kinetics of Pyrite Using Surface Response Methodology
Effects of Cyclic Intercritical Annealing on Retained Austenite in Medium Manganese Steels
Evaluation of Martensite Transformation Temperatures Using Magnetometry
F-4: Simulation Study on the Influence of Magnesia-carbon Material Embedded in Electrode on the Current Distribution and Temperature Distribution
F-5: Obtaining a Dual-phase Steel by Hot Rolling from a Chemically Modified Commercial Steel
Flow Optimization for Steel Refining Process in an EAF
Further Analysis of the Relationship between Precipitate Formation and a Loss of Hot Ductility in Two Microalloyed Steels
In-situ Laser Confocal Microscopic Analysis of Phase Transformations in Cr-Ni-Mo and Cr-Mo High-strength Steels Coupled with Dilatometric Study
Mechanical Behavior and Plasticity Mechanisms of Ultrahigh Strength-high Ductility 1 GPa Low Density Austenitic Steel with Ordered Precipitation Strengthening Phase
Modelling of Accelerated Runout Table Cooling of Thicker Gauge Steel Products
Relationship between Hardness Distribution and Microstructure Formation Process during Martensitic Transformation in Steels
Rigorous, Machine-Learning based Classification of Steel Microstructures Using EBSD
Stereological Analysis for Microstructure Quantification in Advanced High Strength Steels
Structure-property Relationship of High Mn Steel and Bi-metallic Hammers for Clinker Crusher Application

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