Hostname: page-component-77c89778f8-fv566 Total loading time: 0 Render date: 2024-07-16T17:09:31.014Z Has data issue: false hasContentIssue false
  • English
  • Français

A Method of Determining the Elastic Properties of Alloys in Selected Crystallographic Directions for X-ray Diffraction Residual Stress Measurement

Published online by Cambridge University Press:  06 March 2019

Paul S. Prevey
Paul S. Prevey*
Affiliation:
Metcut Research Associates Inc. Cincinnati, OH 45209
Get access

Abstract

A technique and apparatus are described for obtaining the elastic constant E/(1 + v) in selected crystaliographic directions for the purpose of calibrating x-ray diffraction residual stress measurement methods. The preparation of a simple rectangular beam specimen with two active electrical resistance strain gages applied to the test surface is described. Samples are clamped in a diffractometer fixture designed to minimize displacement errors, and loaded in four-point bending to several stress levels below the proportional limit. A method is described for calculating E/(l + v) and an estimate of the experimental error.

Values of E/(l + v) obtained for several alloy-(hkl) combinations are presented. The results indicate that several alloys of current commercial interest exhibit significant elastic anisotropy.

Type
X-Ray Diffraction Stress Analysis
Information
Advances in X-Ray Analysis , Volume 20: Twenty-Fifth Annual Conference on Applications of X-ray Analysis, August 4-6, 1976 , 1976 , pp. 345 - 354
Copyright
Copyright © International Centre for Diffraction Data 1976

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Residual Stress Measurement by X-Ray Diffraction, SAE J784a, pp. 12–15, NY: Society of Automotive Engineers, Inc. (1971).Google Scholar
2. Zantopulos, H. and Jatczak, C. F., “Systematic Errors in X-Ray Diffractometer Stress Measurements Due to Specimen Geometry and Beam Divergence,” Advances in X-Ray Analysis, Vol. 14, pp. 260–376, 1971.Google Scholar
3. Alloy, Digest, Upper Montclair, NJ: Engineering Alloys Digest, Inc.Google Scholar
4. Aerospace Structural Metals Handbook, AFML-TR-68-115, Traverse City, MI: Mechanical Properties Data Center, Belfour Stulen Inc., (1975).Google Scholar
5. Titanium Alloys Handbook, MCIC-HB-02, Columbus, Ohio; Metals and Ceramics Information Center, Battelle Columbus Laboratories (1972).Google Scholar
6. Handbook of Engineering Fundamentals, Eshbach, O. W., p. 1332, NY: John Wiley & Sons (1975).Google Scholar
7. Metal Progress Databook 1975, published as Metal Progress, Vol. 108, No. 1 (Mid-June 1975).Google Scholar