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In-Situ Neutron Diffraction Study of Gas Tungsten Arc Welding of a 1018 Plain Carbon Steel

Published online by Cambridge University Press:  01 February 2011

Michael Gharghouri ,
Michael J Watson ,
David Dye  and
Ronald B Rogge
Michael Gharghouri
Affiliation:
Michael.Gharghouri@nrc.gc.ca, National Research Council, Canadian Neutron Beam Centre, Chalk River Laboratories, Bldg. 459, Stn. 18, Chalk River, MA, K0J 1J0, Canada, (613) 584-8811 x4936, (613) 584-4040
Michael J Watson
Affiliation:
Michael.Watson@nrc.gc.ca, National Research Council, Canadian Neutron Beam Centre, Chalk River Laboratories, Bldg. 459, Stn. 18, Chalk River, K0J 1J0, Canada
David Dye
Affiliation:
David.Dye@imperial.ac.uk, Imperial College London, Department of Materials, Exhibition Road, London, SW7 2AZ, United Kingdom
Ronald B Rogge
Affiliation:
Ronald.Rogge@nrc.gc.ca, National Research Council, Canadian Neutron Beam Centre, Chalk River Laboratories, Bldg. 459, Stn. 18, Chalk River, K0J 1J0, Canada
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Abstract

In-situ neutron diffraction measurements of a dynamic Gas Tungsten Arc Welding (GTAW) process have been performed using a unique instrument that establishes steady-state conditions by translating and rotating a cylindrical specimen past a stationary weld torch. The fixed neutron sampling volume is at a constant location with respect to the torch as new material is brought into the fusion zone. We present maps of lattice spacing and integrated intensity as a function of location about the weld torch, which provide insight into the temperature and phase distributions around the weld.

Keywords

neutron scatteringjoiningwelding
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1027: Symposium D – Materials in Transition–Insights from Synchrotron and Neutron Sources , 2007 , 1027-D03-05
Copyright
Copyright © Materials Research Society 2008

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References

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