FIELD: the invention refers to the field of metallographical researches and may be used for accurate computation of strengthening phase -of eutectoid (a +d) in tin bronze.
SUBSTANCE: in the mode of conducting metallographic researches of tin bronzes a preparation of section metallographic specimen is fulfilled, its pickling, research of the structure of the metal on microscope, photographing of researched structure, processing of photographs on a personal computer. The pickling is made in 1% solution of copper chloride in hydrochloric acid. The polished section is cleaned by rubbing with cotton wool moistened in etching agent for 1-2 seconds before appearance of the first indications of pickling. Then the section is washed with spirit and the procedure is repeated till appearance of uniform dark color of the matrix and then processing on personal computer is made with the aid of computer program of processing images.
EFFECT: allows to reveal the structure, microrelief on the surface of the section whose analysis should allow to make conclusion about the quality of the material.
4 dwg
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Authors
Dates
2006-03-27—Published
2004-08-20—Filed