About this Abstract |
Meeting |
MS&T24: Materials Science & Technology
|
Symposium
|
Computational Materials for Qualification and Certification
|
Presentation Title |
Additive Manufacturing Porosity Estimation Using Multiple Nondestructive Evaluation Techniques |
Author(s) |
Peter Spaeth, Joseph Zalameda, Erik Frankforter |
On-Site Speaker (Planned) |
Peter Spaeth |
Abstract Scope |
Numerous nondestructive evaluation (NDE) techniques have been studied to characterize porosity in additively manufactured (AM) materials. Even when validated NDE approaches are used to inspect an AM specimen, the resulting porosity estimates typically vary, making it difficult to characterize the true state of the target of the inspection. Data fusion is a natural means to consolidate the various estimates into a single probabilistic estimate of porosity of a given specimen. In particular, the concept of the conflation of probability distributions is used to combine ultrasound testing (UT) and infrared thermography estimates for porosity in the context of powder bed fusion AM, with the performance of the combined estimate compared against an estimate derived from micro-focus X-ray computed tomography. |