The microstructures can tell the properties, quality, and the characteristics of metals. Metals with different compositions and different heat treatment condition will be different in microstructures. These set of specimens contains various kinds of ferrous metal in various conditions. These specimens can be used as the reference in studying of Metallurgy, Foundry, Heat Treatment, and Manufacturing Processes, etc.
There are 30 pieces of specimen in this set. Each specimen is prepared, etched, and coated with transparency coating material to protect the specimen surface and to be able to be seen under microscope.without any cleaning process. The specimens were kept in three wooden boxes, 10 pieces each. The data and specimen descriptions and micro-photographs are prepared and combined as a book and supplied together with the specimens
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