About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
|
Presentation Title |
AM Processing and Microstructural Evolution in Nickel-based Superalloys |
Author(s) |
Ruben Bladimir Ochoa, Amy J Clarke |
On-Site Speaker (Planned) |
Ruben Bladimir Ochoa |
Abstract Scope |
Metal additive manufacturing (AM) has shown promise in producing parts while reducing cost, waste, and increasing geometric complexities over parts produced by conventional manufacturing. A major drawback of AM is the lack of understanding of microstructural evolution and control during the build process, especially during rapid solidification. Local thermal conditions within AM parts favor the formation of columnar grains, which may lead to hot cracking and anisotropy. Thus, understanding the columnar-to-equiaxed transitions relative to AM processing conditions is crucial to control microstructure development. This work focuses on exploring the relationship between AM processing conditions and history on microstructural evolution in nickel-based superalloys. |