The book Microscopic Examination of Steel was written by author Henry Fay Here you can read free online of Microscopic Examination of Steel book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Microscopic Examination of Steel a good or bad book?
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MACROSTRUCTURE. Macrostructure is the appearance of the etched surface seen by the naked eye. Micros true ture, on the other hand, is that appearance of the etched surface seen under a microscope. The macrostructure often yields important evidence concerning the qualities of the metal. The structure is usually developed on 8 MICROSCOPIC EXAMINATION OF STEEL a roughly polished area of considerable size, or if it is possible to work only with small sections, it is recommended that the test bars b...e rough-polished on two sides, at right angles to each other, before being turned into shape. The development of the structure is accomplished by etching the surface with a 6 per cent solution of iodine in alcohol or with an 8 per cent solution of copper ammonium chloride. The former should always be prepared immediately before use, as it keeps in good condition only a relatively short time. The copper ammonium chloride should be used only for those specimens which can be dipped into it, and the time of action should be approximately i minute.
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