About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
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| Symposium
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Microstructural Control in Materials Processing: Role of Phase Transformation Pathways
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| Presentation Title |
Effect of Al, Bi, Ti, Ca, Mischmetal and Fe-powder Additions on the Structure and Mechanical Properties of Nickel-Alloyed Ductile Iron |
| Author(s) |
Adnan Adib Ahamed, Jingjing Qing, Mingzhi Xu |
| On-Site Speaker (Planned) |
Adnan Adib Ahamed |
| Abstract Scope |
This study investigates the impact of Al, Bi, Ti, Ca, Mischmetal and Fe-powder additions on the macrostructure, microstructure and mechanical properties of Nickel-alloyed ductile iron (DI). A hypoeutectic alloy with primary austenite phase was designed using thermodynamic calculations. The alloying additions were aimed at enhancing the mechanical performance of Ni-alloyed Di. Macrostructural analysis revealed refinement of austenite grain morphology and distribution. Microstructural examination with a scanning electron microscope (SEM) equipped with energy dispersive x-ray (EDX) and automated feature analysis software was used to classify the non-metallic inclusions and characterize the graphite nodules in the cast samples. Thermal analysis was utilized to reveal the impacts on solidification characteristic temperatures. Tensile tests were performed on the cast samples and the findings suggested that the additions can tailor the structural features and impact the mechanical properties of Ni-alloyed DI. |