Nondestructive Evaluation of Materials

The Army Materials and Mechanics Research Center of Water­ town, Massachusetts in cooperation with the Materials Science Group of the Department of Chemical Engineering and Materials Science of Syracuse University has conducted the Sagamore Army Materials Research Conference since 1954. The main purpose of these conferences has been to gather together over 150 scientists and engineers from academic institutions, industry and government who are uniquely qualified to explore in depth a subject of importance to the Department of Defense, the Army and the scientific community. This volume NONDESTRUCTIVE EVALUATION OF MATERIALS, addresses the areas of x-ray, ultrasonics and other methods of nondestructive testing. We wish to acknowledge the dedicated assistance of Joseph M. Bernier of the Army Materials and Mechanics Research Center and Helen Brown DeMascio of Syracuse University throughout the stages of the conference planning and finally the publication of this book. Their help is deeply appreciated. Syracuse University Syracuse, New York The Editors Contents SESSION I X-RAY S. Heissman, Moderator H. K. Herglotz, Moderator 1. Overview of X-Ray Diffraction Methods for Nondestructive Testing . . . . . . . ... 1 L. V. Azaroff 2. Detection of Fatigue Damage by X-Rays 21 S. Taira and K. Kamachi 3. A Historical Example of Fatigue Damage . . . . . . . 55 H. K. Herglotz 4. The Application of X-Ray Topography to Materials Science . . . . . . . . . . . . . . . . . . . . 69 S. Weissman 5.

Contenu

Session I X-Ray.- 1. Overview of X-Ray Diffraction Methods for Nondestructive Testing.- 2. Detection of Fatigue Damage by X-Rays.- 3. A Historical Example of Fatigue Damage.- 4. The Application of X-Ray Topography to Materials Science.- 5. Residual Stress Measurement by X-Rays: Errors, Limitations and Applications.- 6. Flash X-Ray.- 7. Neutron Radiography for Nondestructive Testing.- 8. Nondestructive Compositional Analysis.- 9. Review of European Advances in Nondestructive XRD Testing.- 10. Polychromatic X-Ray Stress Analysis and Its Application (Nondestructive Distribution Measurement of Sub-Surface Physical Quantities).- Session II Sonic.- 11. Overview of Ultrasonic NDE Research.- 12. Electromagnetic Ultrasonic Transducers.- 13. Ultrasonic Spectroscopy.- 14. Acoustic Interactions with Internal Stresses in Metals.- Session III Optical Methods.- 15. Optical Probing of Acoustic Emission Waves.- 16. Recognition and Analysis of Distributed Image Information.- 17. Moire Method - Its Potential Application to NDT.- 18. Image Processing in Nondestructive Testing.- 19. Automated Detection of Cavities Present in the High Explosive Filler of Artillery Shells.- Session IV Other Methods.- 20. Advanced Quantitative Magnetic Nondestructive Evaluation Methods - Theory and Experiment.- 21. Positrons as a Nondestructive Probe of Damage in Structural Materials.- 22. Quantitative Methods in Penetrant Inspection.