Ultrasonic evaluation of residual stresses in rolled aluminum plate
- Don E. Bray, Inc., P.O. Box 10315, College Station, Texas 77842 (United States)
- Department of Mechanical Engineering, Pukyong National University, Pusan, 608-739 (Korea, Republic of)
- Kaiser Aluminum, Center for Technology, Pleasanton, California 94556 (United States)
The L{sub CR} ultrasonic technique has shown an ability to distinguish between three aluminum plates furnished by Kaiser Aluminum. The 1.22x1.19 m(48x47 in) plates are 19 mm (0.75 inch) thick, but differ in heat treatment and rolling conditions. One is fully annealed (O temper), the second was heat-treated to T651 temper, and the third is a stress relieved plate. Travel-times were obtained at twenty-five locations on each side of all plates. The O temper plate showed large travel-time differences between the sides, but the variation for a side was small. The heat-treated plate showed large differences both between the sides and on each side. The stress relieved plate, on the other hand, showed very uniform L{sub CR} travel-times both for the two sides and on each side. These preliminary results indicate that the L{sub CR} method may be further developed for use in quality control in the manufacture of rolled aluminum plates.
- OSTI ID:
- 21207682
- Journal Information:
- AIP Conference Proceedings, Vol. 497, Issue 1; Conference: 9. international symposium on nondestructive characterization of materials, Sydney (Australia), 28 Jun - 2 Jul 1999; Other Information: DOI: 10.1063/1.1303086; (c) 1999 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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