FIELD: instrumentation.
SUBSTANCE: invention relates to metallographic analysis of steel and to determination of 3D surface topography and its structure by scanning probe microscopy (SPM) Proposed method comprises grinding, polishing and chemical or electrochemical etching of steel specimen and, then, surface scanning by SPM. As said SPM can be applied nuclear power scanning, scanning tunnel and optical hear-field scanning combined with nuclear power scanning. Scanning results for metallographic conclusion, specimen structural elements are identified and classified subject to their shape and depth related with etching rate defined by their structure.
EFFECT: higher resolution and precision.
16 cl, 5 dwg
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