| Abstract Scope |
Cold spray deposition is a solid-state metal additive manufacturing process that has found use in military and commercial applications. To identify defects in deposits made from cold spray, traditional microscopy offers a view inside a 3D printed part. However, destructive methods requiring metallographic preparation are not always favorable. Here, we analyze the viability of two non-destructive testing methods for use with cold spray deposits, ultrasonic testing and eddy current testing, to understand their potential use case in identifying common defects in cold spray. Through this study, it was determined that ultrasonic testing excels at visualizing large internal defects, while eddy current testing was effective measuring some material properties of the deposit and detecting smaller defects. These non-destructive testing methods will allow for future applications in cold spray technology that will enhance the field of additive manufacturing. |