| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Grain Boundaries, Interfaces, and Surfaces: Fundamental Structure-Property-Performance Relationships
|
| Presentation Title |
E-1: Effects of Al, Bi, Ce, and Ti Additions on the Microstructure of Ni-Alloyed Ductile Iron |
| Author(s) |
August Rautmann, Adnan Adib Ahamed, Jingjing Qing, Mingzhi Xu |
| On-Site Speaker (Planned) |
August Rautmann |
| Abstract Scope |
The impacts of Al, Bi Ce, and Ti additions on the microstructure of Ni-alloyed ductile iron (DI) were experimentally investigated. A hypoeutectic alloy with primary austenite phase was designed using thermodynamic calculations. Castings with different additions were produced using No-bake sand mold. Thermal analyses were performed during the solidification of the metals. Metallographic samples were analyzed to reveal the effects of the additions on the austenite grain size, non-metallic inclusions and graphite morphology (shape, size and distributions). Both Macrostructures and microstructures of the DI samples were examined. A Scanning Electron Microscope (SEM) equipped with Energy Dispersive Detector (EDX) and Automated Feature Analysis (AFA) was used to classify and characterize the graphite nodules and the non-metallic inclusions in the cast DI samples. |