Crystallographic texture analysis by neutron diffraction was applied to 18 Copper Age and 2 Early Bronze Age axes from the Alpine region and the Po River valley. The analysis of the metal textures derived from the reconstructed and inverse pole figures allow complete interpretation of the manufacturing tcchniques of the objects. lt is observed that most prehistoric axes show features related to some mechanical working (5-10 % reduction in volume) and subsequent recrystallization due to thermal annealing. In a few cases thc recrystallization is complete, though in most objects there is only a partial recrystallization of the copper metal into the soft state. Only two of the axes, including the Iceman one, do not show any sign of working or heating and they are in the as-cast state.
Manufacturing techniques of copper age axes
ARTIOLI, GILBERTO;
2007
Abstract
Crystallographic texture analysis by neutron diffraction was applied to 18 Copper Age and 2 Early Bronze Age axes from the Alpine region and the Po River valley. The analysis of the metal textures derived from the reconstructed and inverse pole figures allow complete interpretation of the manufacturing tcchniques of the objects. lt is observed that most prehistoric axes show features related to some mechanical working (5-10 % reduction in volume) and subsequent recrystallization due to thermal annealing. In a few cases thc recrystallization is complete, though in most objects there is only a partial recrystallization of the copper metal into the soft state. Only two of the axes, including the Iceman one, do not show any sign of working or heating and they are in the as-cast state.Pubblicazioni consigliate
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