About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Ceramic Materials and Processing
|
Presentation Title |
Comparative Study of Aluminium Grain-refinement with Conventional and Glass Fiber Modified Ceramic Shell in the Investment Casting Process |
Author(s) |
Sanjay Kumar, Dagarapu Benny Karunakar |
On-Site Speaker (Planned) |
Sanjay Kumar |
Abstract Scope |
Investment casting (IC) is a well-known process to cast products with excellent surface finish and high dimensional accuracy. In investment casting, shell cracking is the main cause of casting rejection. In the present study, conventional and glass fiber-modified ceramic shells were used to cast hyper-eutectic aluminum-silicon alloy and grain-refinement was made by using aluminum titanium boron 5:1 (ATB 5:1) master alloy. It was observed that glass fiber-modified ceramic shells have more flexural strength as compared to conventional ceramic shells. FE-SEM was used to analyze the microstructure characterization of the conventional shell, modified shell, and final cast part. XRD analysis was also carried out for conventional and glass-fiber-modified ceramic shells. The grain refinement and yield strength of the hypo-eutectic aluminum-silicon alloy were measured and compared with conventional and glass fiber-modified ceramic shells. |
Proceedings Inclusion? |
Planned: |
Keywords |
Ceramics, Aluminum, Solidification |