In situ neutron diffraction measurement of transient temperature and stress fields in a thin plate

Wanchuck Woo; Zhili Feng; Xun Li Wang; Ke An; Camden R. Hubbard; Stan A. David; Hahn Choo

doi:10.1063/1.2209888

In situ neutron diffraction measurement of transient temperature and stress fields in a thin plate

Wanchuck Woo
, Zhili Feng
, Xun Li Wang
, Ke An
, Camden R. Hubbard
, Stan A. David
, Hahn Choo

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

Separating the elastic and thermal strains has been a long standing problem for in situ neutron diffraction measurement of transient temperature and stress fields. Using the plane stress condition, we demonstrate a method to decompose the thermal and elastic strains from the measured lattice spacing changes. The method was validated using a thin plate subjected to a local moving heat source. The methodology developed herein has practical applications for a variety of materials processing technologies such as welding, forming, and heat treatment.

Original language	English
Article number	261903
Journal	Applied Physics Letters
Volume	88
Issue number	26
DOIs	https://doi.org/10.1063/1.2209888
State	Published - 2006

Funding

This research is sponsored by the Laboratory Directed Research and Development program of Oak Ridge National Laboratory (ORNL), managed by UT-Battelle, LLC for the U. S. Department of Energy under Contract No. DE-AC05-00OR22725. It is also in part supported by the NSF International Materials Institutes (IMI) Program under Contract No. DMR-0231320. The authors would like to thank A. Frederick and W. B. Bailey for their help during experiments.

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10.1063/1.2209888

Cite this

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title = "In situ neutron diffraction measurement of transient temperature and stress fields in a thin plate",

abstract = "Separating the elastic and thermal strains has been a long standing problem for in situ neutron diffraction measurement of transient temperature and stress fields. Using the plane stress condition, we demonstrate a method to decompose the thermal and elastic strains from the measured lattice spacing changes. The method was validated using a thin plate subjected to a local moving heat source. The methodology developed herein has practical applications for a variety of materials processing technologies such as welding, forming, and heat treatment.",

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AU - Woo, Wanchuck

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AU - An, Ke

AU - Hubbard, Camden R.

AU - David, Stan A.

AU - Choo, Hahn

PY - 2006

Y1 - 2006

N2 - Separating the elastic and thermal strains has been a long standing problem for in situ neutron diffraction measurement of transient temperature and stress fields. Using the plane stress condition, we demonstrate a method to decompose the thermal and elastic strains from the measured lattice spacing changes. The method was validated using a thin plate subjected to a local moving heat source. The methodology developed herein has practical applications for a variety of materials processing technologies such as welding, forming, and heat treatment.

AB - Separating the elastic and thermal strains has been a long standing problem for in situ neutron diffraction measurement of transient temperature and stress fields. Using the plane stress condition, we demonstrate a method to decompose the thermal and elastic strains from the measured lattice spacing changes. The method was validated using a thin plate subjected to a local moving heat source. The methodology developed herein has practical applications for a variety of materials processing technologies such as welding, forming, and heat treatment.

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VL - 88

JO - Applied Physics Letters

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In situ neutron diffraction measurement of transient temperature and stress fields in a thin plate

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Funding

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