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Meeting 2025 TMS Annual Meeting & Exhibition
Symposium Microstructural Evolution and Material Properties Due to Manufacturing Processes: A Symposium in Honor of Anthony Rollett
Presentation Title J-56: Microstructure Evolution and Mechanical Behavior of As-Cast Chromium-Containing Ductile Iron
Author(s) Kumar Karuna Nidhi, Siddhartha Roy, Shiv Brat Singh
On-Site Speaker (Planned) Kumar Karuna Nidhi
Abstract Scope This study explores the effect of chromium carbide (Cr3C2) addition in ductile iron (DI). By incorporating 4 and 8 wt.% Cr3C2, the researchers investigated the formation of iron-chromium-carbide phases in DI. The alloy compositions were selected based on the vertical section of the Fe-C-Si-Mn-Cr phase diagram. Microstructure analysis revealed that increasing Cr3C2 led to higher pearlite and smaller graphite nodules due to M<sub>3</sub>C, and M<sub>7</sub>C<sub>3</sub> carbide formation. Notably, the 8 wt.% Cr3C2 alloy exhibited the best hardness (480 HV30), elastic modulus (256 GPa), wear resistance (the lowest wear rate of 2.61×10<sup>-5 mm<sup>3/mN), and ultimate tensile strength (834 MPa), highlighting the significant potential of Cr3C2 in enhancing DI’s mechanical properties for various industrial applications.
Proceedings Inclusion? Planned:
Keywords Iron and Steel, Mechanical Properties,

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J-47: Investigating Microstructural Changes in Wrought 316L and As-Deposited Wire Arc Additively Manufactured 316LSi After Forging Using Double Cone Samples
J-48: Advantages and Limitations of the Coupled Random Cellular Automata Finite Element Model of Dynamic Recrystallization
J-49: Effects of Cellular Microstructure on Strength, Fatigue and Hydrogen Embrittlement of Additively Manufactured Alloys
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J-55: Understanding the TRIP Effect in Hot- and Cold-Rolled Al-Added Medium-Mn Steels: Insights Into Austenite Stability and Martensitic Transformation Kinetics
J-56: Microstructure Evolution and Mechanical Behavior of As-Cast Chromium-Containing Ductile Iron
J-58: Role of Relative Amount of Mn and Ni on Chemical and Mechanical Stability of Austenite in δ-Ferrite Containing Medium-Mn Steels
J-59: Evaluation of Additively Manufactured Parts Using a Work-Hardening Analysis
J-60: Revealing the Influence of Rolling Reduction and Temperature on the Deformation and Recrystallization Behavior of Ta-10W Alloy
J-63: Evolution of Grain Boundary Character Distribution in High-Mn Steel
Modeling Microstructure Fatigue Indicator Parameters Using Symbolic Regression with Graph Neural Networks
Morphological Stability of Recrystallization Fronts: Theory and Simulations
Nano-Scale Analysis of Mechanically and Thermally Induced White Layers in Hard Turned AISI 52100 Bearing Steel
Phase Transformation and Plasticity Enhanced by Electric Current or Charge
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Predicting Spatial Variability of Mechanical Properties in Additively Manufactured Metals Using a Process-Structure-Property Modeling Framework
Predictions of the Mechanical Behavior Scaling of Beam and Sheet Structures
Quantifying Abnormal Grain Growth with Correlation Analyses and Information Theory
Recovery and Recrystallization of Deformed Metal Nanoparticles
The Annealing Twin Paradox : Well-Known Defects but Still not Fully Understood
Toward Microstructure-Aware Processing at Scale
Understanding Twin Nucleation in Mg Alloys Through In Situ Synchroton Experiments and Machine Learning Models
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