Abstract
In a f.c.c. metal, deformation stacking faults on the (111) planes produce peak shifts, and twin faults produce peak asymmetries. In addition, both kinds of faults contribute to the particle size broadening. Samples of o.f.h.c. copper were filed under liquid nitrogen and measured at −160°C. Under these conditions pure copper shows a probability for deformation faulting comparable to that of 80-20 brass filed at room temperature, and a probability for twin faulting. The faults anneal out rapidly at room temperature. Samples of a brass were filed under liquid nitrogen and measured at either −160°C or at room temperature. The probabilty of faulting increases with increasing Zn content and is appreciably greater if filed at liquid-nitrogen temperature than if filed at room temperature.
Published Version
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