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Plastic Strain Estimation from Neutron Bragg Peaks

Published online by Cambridge University Press:  22 February 2011

G.M. Swallowe ,
J.C. Osborn ,
P. Lukas ,
P. Mikula  and
M. Vrana
G.M. Swallowe
Affiliation:
Loughborough University of Technology, Department of Physics, Leicestershire LE11 3TU, United Kingdom
J.C. Osborn
Affiliation:
Loughborough University of Technology, Department of Physics, Leicestershire LE11 3TU, United Kingdom
P. Lukas
Affiliation:
Nuclear Physics Institute, 25068 Rez, Czech Republic
P. Mikula
Affiliation:
Nuclear Physics Institute, 25068 Rez, Czech Republic
M. Vrana
Affiliation:
Nuclear Physics Institute, 25068 Rez, Czech Republic
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Abstract

This paper describes experiments carried out at three neutron sources in which Bragg reflection peak profiles of samples of copper, nickel and iron were investigated as a function of plastic strain. All peaks were well fitted by Gaussian functions for true strains of upto 0.25. Peak widths of all samples were found to be simple power law functions of strain and independent of measurement direction. This suggests that use could be made of data gathered in standard residual elastic stress measurements to simultaneously estimate plastic strains.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 376: Symposium BB – Neutron Scattering in Materials Science , 1994 , 435
Copyright
Copyright © Materials Research Society 1995

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References

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