Abstract

Crystallographic orientation dependency of slips in metallic crystallites due to low strain-amplitude loads has been examined by a new experimental method of neutron double Bragg reflection (D.B.R.) measurements with use of time-of-flight (TOF) method. The slips in single crystal of lead under static loads and also in polycrystals of lead and copper under cyclic loadings have been investigated. Coordination of the orientation of mosaic blocks within crystallites was clearly observed. It is shortly discussed that the results may be useful for studying strength of materials and also slip phenomena in aggregates of amorphous metals which have no the well-defined slip systems as in pure metals.

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