Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-28T22:30:33.305Z Has data issue: false hasContentIssue false
  • English
  • Français

Determination of X-ray Elastic Constants in a Ti-14Al-21Nb Nb Alloy and a Ti-14Al-21Nb/SiC Metal Matrix Composite*

Published online by Cambridge University Press:  06 March 2019

J. Jo ,
R. W. Hendricks ,
W. D. Brewer  and
Karen M. Brown
J. Jo
Affiliation:
Materials Engineering Department Virginia Polytechnic Institute and State University Blacksburg, Virginia 24061
R. W. Hendricks
Affiliation:
Materials Engineering Department Virginia Polytechnic Institute and State University Blacksburg, Virginia 24061
W. D. Brewer
Affiliation:
Metallic Materials Branch NASA Langley Research Center Hampton, VA 23665
Karen M. Brown
Affiliation:
Metallic Materials Branch NASA Langley Research Center Hampton, VA 23665
Get access

Extract

Residual stress values in a material are governed by the measurements of the atomic spacings in a specific crystallographic plane and the elastic constant for that plane. It has been reported that the value of the elastic constant depends on microstructure, preferred orientation, plastic deformation and morphology [1], Thus, the theoretical calculation of the elastic constant may deviate from the intrinsic value for a real alloy.

Type
XII. Analysis of Stress and Fracture by Diffraction Methods
Information
Advances in X-Ray Analysis , Volume 34: Thirty-Ninth Annual Conference on Applications of X-ray Analysis, July 30 - August 3, 1990 , 1990 , pp. 689 - 698
Copyright
Copyright © International Centre for Diffraction Data 1990

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.)

Footnotes

*

This research was sponsored by the National Aeronautics and Space Administration under contract with the Virginia Polytechnic Institute and State University

References

[1] Zhong, R. M., Noyan, I. C. and Cohen, J. B., “x-ray Elastic Constants and Their Meaning for Al and Fe”, in Advances in x-ray Analysis, 1986, 29, pp. 17–20.Google Scholar
[2] Brown, K. M., Hendricks, R. W. and Brewer, W. D., “x-ray Diffraction Measurements of Residual Stresses in SiC/Ti Composites”, in Fundamental Relationships Between Microstructure and Mechanical Properties of Metal-Matrix Composites, Gungor, M. N. and Liaw, P. K. eds., The Metallurgical Society: Warrendale, Pa, 1990, pp. 269–286.Google Scholar
[3] Cullity, B. D., x-ray Diffraction, Addison-Wesley: Reading, 1968, pp. 58–70.Google Scholar
[4] Noyan, I. C. and Cohen, J. B., Residual Stress: Measurement by Diffraction and Interpretation, New York: Springer-Verlag, 1987.Google Scholar
[5] Macherauch, E., “x-ray Stress Analysis”, Experimental Mechanics, 1966, 16, pp. 140–153.Google Scholar
[6] Marion, R. H. and Cohen, J. B., “Anomalies in Measurement of Residual Stress by x-ray Diifraction”, in Advances in x-ray Analysis, 1977, 20, pp. 355–368.Google Scholar
[7] Prevey, P. S., “A Method of Determining the Elastic Properties of Alloys in Selected Crystallographic Directions for x-ray Diffraction Residual Stress Measurement”, in Advances in x-ray Analysis, 1977, 20, pp. 345–354.Google Scholar
[8] Perry, K., Noyan, I. C., Rudnik, P. J. and Cohen, J. B., “The Measurement of Elastic Constants for the Determination of Stresses by x-rays”, in Advances in x-ray Analysis, 1984, 27, pp. 159–170.Google Scholar
[9] Dowling, N. E., Hendricks, R. W. and Ranganathan, K., “x-ray Residual Stress Measurements in Notched Test Specimens”, Journal of Testing and Evaluation, 1987, 16, pp. 456–460.Google Scholar