Residual Stress Measurements in Mo/CuCrZr Tiles Using Neutron Diffraction

Abstract:

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In plasma facing components (PFC) for nuclear fusion reactors tungsten or carbon based tiles need to be cooled through a heat sink. The joint between the PFC and the heat sink can be realized using a brazing process through the employment of compliant layer of either a low yield material, like copper, or a high yield material, like molybdenum. Experimental verification of the induced stresses during the brazing process is of vital importance. Strains and residual stresses have been measured in Mo/CuCrZr brazed tiles using neutron diffraction. The strains and stresses were measured in Mo tile along the weld direction and at different distances from it. The experimental results are compared with Finite Element Simulations.

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Periodical:

Edited by:

Ch. Linsmeier and M. Reinelt

Pages:

299-303

DOI:

10.4028/www.scientific.net/AMR.59.299

Citation:

K. Mergia et al., "Residual Stress Measurements in Mo/CuCrZr Tiles Using Neutron Diffraction", Advanced Materials Research, Vol. 59, pp. 299-303, 2009

Online since:

December 2008

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