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Residual Stress Relaxation in Cemented Carbide Composites Studied Using the Argonne Intense Pulsed Neutron Source

Published online by Cambridge University Press:  06 March 2019

A. D. Krawitz ,
R. Roberts  and
J. Faber
A. D. Krawitz
Affiliation:
University of Missouri, Columbia, MO 65211
R. Roberts
Affiliation:
University of Missouri, Columbia, MO 65211
J. Faber
Affiliation:
University of Missouri, Columbia, MO 65211
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Abstract

Cemented carbide composites with a WC hard phase and a Co-Ni alloy binder phase have been subjected to monotonic and cyclic deformation and studied using the high resolution General Purpose Powder Diffractometer at the Argonne Intense Pulsed Neutron Source. Upon deformation, relaxation of bulk differential thermal residual stresses, tensile in the binder and compressive in the carbide, is observed to occur as a function of loading mode and plastic strain via shifts in diffraction peak positions. In addition, peak breadth behavior indicates broadening. At low plastic strain this is due primarily to a range of residual stress and at high plastic strain it is attributable to the plastic deformation alone since relaxation is essentially complete. The appropriateness of neutrons is discussed.

Type
II. X-Ray Strain and Stress Determination
Information
Advances in X-Ray Analysis , Volume 27: Thirty-Second Annual Conference on Applications of X-ray Analysis, August 1-5, 1983 , 1983 , pp. 239 - 249
Copyright
Copyright © International Centre for Diffraction Data 1983

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References

1. Exner, H. E., Physical and Chemical Nature of Cemented Carbides, Intl. M et. Revs., 27 (4):149 (1979),Google Scholar
2. Kingery, W. D., Bowen, H. K. and Uhlmann, D. R., “Introduction to Ceramics, 2nd Ed.,” John Wiley & Sons, New York (1976).Google Scholar
3. Vasel, C. H., Krawitz, A. D., Drake, E. F. and Kenik, E. A., The Deformation Microstructure of WC-(Co,Ni) Cemented Carbide Composites, to be published.Google Scholar
4. Bacon, G. E., “Neutron Diffraction”, 3rd ed. Oxford University Press, London (1975).Google Scholar
5. Lander, G. H. and Brown, B. S., “IPNS-1 Users’ Handbook,“ Argonne National Laboratory, Argonne, IL (1982).Google Scholar
6. MacEwen, S. R., J. Faber and Turner, A. P. L., The Use of Time-of-Flight Neutron Diffraction to Study Grain Interaction Stresses, Acta Metall., 31(5):657 (1983).Google Scholar
7. Dieter, G. E., “Mechanical Metallurgy, 2nd ed.,“ McGraw-Hill Book Co., New York (1976).Google Scholar
8. Hibbs, M. K. and Sinclair, R., Room Temperature Deformation Mechanisms and the Defect Structure of Tungsten Carbide, Acta Metall., 29(9):1645 (1981).Google Scholar