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Internal Strain Measurement Using Pulsed Neutron Diffraction at Lansce

Published online by Cambridge University Press:  22 February 2011

J. A. Goldstone ,
M. A. M. Bourke ,
N. Shi  and
Manuel Lujan Jr.
J. A. Goldstone
Affiliation:
Neutron Scattering Center Los Alamos National Laboratory, Los Alamos, NM 87545
M. A. M. Bourke
Affiliation:
Neutron Scattering Center Los Alamos National Laboratory, Los Alamos, NM 87545
N. Shi
Affiliation:
Neutron Scattering Center Los Alamos National Laboratory, Los Alamos, NM 87545
Manuel Lujan Jr.
Affiliation:
Neutron Scattering Center Los Alamos National Laboratory, Los Alamos, NM 87545
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Abstract

The presence of residual stress in engineering components can effect their mechanical properties and structural integrity. Neutron diffraction in the only technique that can make nondestructive measurements in the interior of components. By recording the change in crystalline lattice spacings, elastic strains can be measured for individual lattice reflections. Using a pulsed neutron source, all lattice reflections are recorded in each measurement, which allows for easy examination of heterogeneous materials such as metal matrix composites. Measurements made at the Manuel Lujan Jr. Neutron Scattering Center (LANSCE) demonstrate the potential at pulsed sources for in-situ stress measurements at ambient and elevated temperatures.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 376: Symposium BB – Neutron Scattering in Materials Science , 1994 , 391
Copyright
Copyright © Materials Research Society 1995

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References

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