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AbstractAbstract
[en] The use of surface waves in studying the spatial variation of texture within austenitic weld metal is outlined. Rotated surface acoustic wave velocities have been measured and compared with X-ray pole figures for several different weld structures and for cast material. Pole figures obtained from an austenitic butt weld reveal that it processes a strong <200> preferred orientation with the [200] axis parallel to the columnar grain axis, but with isotropic behaviour around this axis. Macroscopically, the weld thus processes a special orthotropic structure. Rotated surface wave velocity measurements about the [200] axis show no directional dependence. On the two other planes, mutually perpendicular to the (200) plane and to each other, the surface wave velocity is directionally dependent in a manner which agrees qualitatively with theoretical calculations from a special orthotropic model. Further correlation was obtained from measurements on a cast austenitic ingot. (author)
Primary Subject
Source
Elastic waves and microstructure; Oxford, UK; 16 - 17 Dec 1980
Record Type
Journal Article
Literature Type
Conference
Journal
Metal Science; ISSN 0306-3453; ; v. 15(11-12); p. 566-573
Country of publication
ACOUSTIC TESTING, ALLOYS, CARBON ADDITIONS, CHROMIUM ALLOYS, CHROMIUM STEELS, CHROMIUM-NICKEL STEELS, CORROSION RESISTANT ALLOYS, CRYSTAL STRUCTURE, HEAT RESISTING ALLOYS, IRON ALLOYS, IRON BASE ALLOYS, JOINTS, MATERIALS TESTING, MICROSTRUCTURE, MOLYBDENUM ALLOYS, NICKEL ALLOYS, NONDESTRUCTIVE TESTING, ORIENTATION, STAINLESS STEELS, STEELS, TESTING, TRANSITION ELEMENT ALLOYS
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