, Volume 2, Issue 4, pp 313-323

An investigation of grain-boundary sliding during creep

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A detailed experimental study of the behaviour of grain boundaries between surface grains has been carried out on a magnesium alloy, Magnox AL 80. Different methods of assessing the strain due to grain-boundary sliding were compared; the general agreement obtained confirmed the view that, under conditions of low stress and high temperature, sliding can play a very important role in the overall deformation.