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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
Affiliation:
[email protected], 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:
[email protected], National Research Council, Canadian Neutron Beam Centre, Chalk River Laboratories, Bldg. 459, Stn. 18, Chalk River, K0J 1J0, Canada
David Dye
Affiliation:
[email protected], Imperial College London, Department of Materials, Exhibition Road, London, SW7 2AZ, United Kingdom
Ronald B Rogge
Affiliation:
[email protected], 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.

Type
Research Article
Copyright
Copyright © Materials Research Society 2008

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References

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