|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||Environmental Degradation of Additively Manufactured Alloys
||Thermal response of Additive Manufactured Alloys Submitted to Transient High Heat Flux Testing
||John Saputo, Felipe Caliari, Sanjay Sampath
|On-Site Speaker (Planned)
Additive manufacturing of special alloys has brought flexibility and efficiency by enabling novel design of components. Their complex structural and chemical composition, however, may result in phase segregation and anisotropic properties. Therefore, understand their behavior under high temperature environment is key to determine their durability in harsh environments. The degradation of materials has been investigated under controlled environmental conditions, while in real application they are submitted to gradient and transient thermal exposure. To address those limitations, a test method for extreme environments at highly transient thermal loading with heating rates on the order of 10,000 °C/min, heat fluxes on the megawatt scale, and a tunable continuously varying combustion environment is highlighted. The impact of this environmental degradation on alloys and coated alloy systems is explored in this context with the potential for coatings to extend the useful temperature range of both traditional and additively manufactured components demonstrated.
||Additive Manufacturing, High-Temperature Materials, Surface Modification and Coatings