formed (pounded, rolled, and so forth). iron and steel iron alloy phases austenite (γ-iron; hard) bainite martensite cementite (iron carbide; fe c) ledeburite (ferrite - cementite eutectic, % carbon) ferrite (α-iron, δ-iron; soft) pearlite ( % ferrite, % cementite) spheroidite types of steel carbon...
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