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Neutron Diffraction Measurements of Strain and Texturre in Welded Zr 2.5 wt.Z Nb Tube

Published online by Cambridge University Press:  21 February 2011

T. M. Holden ,
R. R. Hosbons ,
J. H. Root  and
E. F. Ibrahim
T. M. Holden
Affiliation:
Atomic Energy of Canada Limited, Chalk River Nuclear Laboratories, Chalk River, Ontario, KOJ IJO, Canada
R. R. Hosbons
Affiliation:
Atomic Energy of Canada Limited, Chalk River Nuclear Laboratories, Chalk River, Ontario, KOJ IJO, Canada
J. H. Root
Affiliation:
Atomic Energy of Canada Limited, Chalk River Nuclear Laboratories, Chalk River, Ontario, KOJ IJO, Canada
E. F. Ibrahim
Affiliation:
Atomic Energy of Canada Limited, Chalk River Nuclear Laboratories, Chalk River, Ontario, KOJ IJO, Canada
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Abstract

The axial and tangential components of residual strain have been measured through the region of an electron beam weld in Zr 2.5 wt.% Nb tube. Marked changes in grain orientation in the tube occur as far away as 10 mm from the weld-centre. In particular a large fraction of the grains which had an [0002] direction aligned tangentially in the original tube were reoriented with this direction aligned axially. These grains showed high (5 x 10-4) tensile strain. Compressive strains (-5 to - 10 x I0-4) were measured in the region 5 - 10 mm from the weld-centre in those grains with [1010] directioný aligned axially. The hoop straint vary from tensile (maximum 5 x 10-4) to compressive (maximum -5 x 10-4) as a function of distance from the weld centre.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 142: Symposium U – Nondestructive Monitoring of Materials Properties , 1988 , 59
Copyright
Copyright © Materials Research Society 1989

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References

1. MacEwen, S.R., Christodoulou, N., Tome, C., Jackman, J.A., Holden, T.M., Faber, J. Jr., and Hitterman, R.L.. Proceedings of the International Conference on the Texture of Materials (ICOTOM-8), edited by Kallend, J.S. and Gottstein, G. (The Metallurgical Society) 1988, p. 825.Google Scholar