Improved methodology for inspection reliability assessment for detecting synthetic hard alpha inclusions in titanium

摘要

This paper presents a progress report on the development of model-based methodology to estimate Nondestruvtive Evaluation (NDE) capability. Previous work on this project was reported in Meether et al. [3,4]. The methodology uses combinations of physical modeling of an inspection process, along with laboratory and production data, to estimate Nondestructive Evaluation (NDE) capability. The methodology is based on a physical/statistical prediction model and will be used to predict NDE capability in terms of Probability of Detection (POD), Probability of False Alarm (PFA), Probability of Indication (POI) and Receiver Operating Characteristic (ROC) curves.