All metallic structures are crystalline. Therefore, the characteristics of these materials are determined either by the nature of the crystals of which they are composed or by the manner in which these crystals are aggregated into larger masses. A metal composed of small grains will generally be harder and stronger than a metal composed of large grains. The general characteristics of a metal composed of only one type of crystal will differ from those of a metal composed of two or more different types of crystals.
KeywordsCast Iron Gray Cast Iron White Cast Iron Rectilinear Motion Relative Electrical Conductivity
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