Journal Published Online: 01 March 1978
Volume 6, Issue 2

“PARS”—A Portable X-Ray Analyzer for Residual Stresses

CODEN: JTEVAB

Abstract

The design, operation, and testing of a 7 to 11-kg hand-held X-ray device for measuring residual stresses are described. The instrument is based on a miniature X-ray tube and generator and a position-sensitive detector. No motion of the detector is needed to record a peak, eliminating the expensive and heavy gearing characteristic of a conventional diffractometer; the only mechanical motion during a measurement is one change of the orientation of the device to the object. An entirely portable instrument is therefore available for use in the plant or in the field. Tests are reported in which the stress is measured to ±40 MPa (± 6 ksi) or better in 4 to 20 s, depending on the specimen.

Author Information

James, M
Laboratorium voor Fysische Metaalkunde, Nijenborgh 18, Universiteitscomplex Paddepoel, University of Groningen, The Netherlands
Cohen, JB
The Technological Institute, Northwestern University, Evanston, Ill.
Pages: 7
Price: $25.00
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Stock #: JTE10925J
ISSN: 0090-3973
DOI: 10.1520/JTE10925J