About this Abstract |
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, |