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Title: In-situ neutorn difraction 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.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1003589
DOE Contract Number:
DE-AC05-00OR22725
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 88; Journal Issue: 261903
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ELASTICITY; HEAT SOURCES; HEAT TREATMENTS; NEUTRON DIFFRACTION; NEUTRONS; PLATES; PROCESSING; STRAINS; TEMPERATURE MEASUREMENT; THERMAL STRESSES; TRANSITION TEMPERATURE; WELDING

Citation Formats

Woo, Wan Chuck, Feng, Zhili, Wang, Xun-Li, An, Ke, Hubbard, Camden R, David, Stan A, and Choo, Hahn. In-situ neutorn difraction measurement of transient temperature and stress fields in a thin plate. United States: N. p., 2006. Web.
Woo, Wan Chuck, Feng, Zhili, Wang, Xun-Li, An, Ke, Hubbard, Camden R, David, Stan A, & Choo, Hahn. In-situ neutorn difraction measurement of transient temperature and stress fields in a thin plate. United States.
Woo, Wan Chuck, Feng, Zhili, Wang, Xun-Li, An, Ke, Hubbard, Camden R, David, Stan A, and Choo, Hahn. Sun . "In-situ neutorn difraction measurement of transient temperature and stress fields in a thin plate". United States. doi:.
@article{osti_1003589,
title = {In-situ neutorn difraction measurement of transient temperature and stress fields in a thin plate},
author = {Woo, Wan Chuck and Feng, Zhili and Wang, Xun-Li and An, Ke and Hubbard, Camden R and David, Stan A and Choo, Hahn},
abstractNote = {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.},
doi = {},
journal = {Applied Physics Letters},
number = 261903,
volume = 88,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2006},
month = {Sun Jan 01 00:00:00 EST 2006}
}