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A new replica technique for electron microscopy of fracture surfaces is described, which can reveal the relationship between the microstructural features of metals and alloys and the detailed topography of their fracture surfaces. This etch-shadow extraction replica technique combines in one replica the salient features of shadowed-surface replicas and precipitate-extraction replicas. Thus a bridge is provided between the fracture topography, which is governed mainly by the effects of fracture-velocity changes, and the significant microstructural features such as precipitates, grain boundaries, etc.

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