Engineering Materials

Dr.C.Ergun, Asst.Prof Mak214-E MAK214E Summer 2006-2007 Lecture Notes 1 1 Dr.C.Ergun, Asst.Prof Mak214-E Fe/C ve Fe/Fe3C form diagrams 2 1 Dr.C.Ergun, Asst.Prof Mak214-E cast- smoothing iron cementite Phase Diagram ?+L Cementite : Fe3C Ferrite : ? Perlite : ? + Fe3C Ostenite: ? Delta iron: ? Ledeburite. Temperature (oC) ? (ostenite) ?+L ?1148oC L Teutectic Ledeburite Teutectoid Perlite Steel soak up campaign 3 C (wt. % ) Dr.C.Ergun, Asst.Prof Mak214-E A1, A2, A3 ve Acm temperatures A3 ? Acm ?+? ?+Fe3C A1 ?+Fe3C A2: Manyetikli?in kayboldu?u Curie s?cakl?d?r: 769oC. 4 2 Dr.C.Ergun, Asst.Prof Mak214-E I II ? 1 I III ? 2 II ? III ?+? ? Perlite 1 2 3 4 1 2 3 4 ?+Fe3C 3 5 ? Cementite 5 ? Eutectoid while Perlite Perlite 5 Dr.C.Ergun, Asst.Prof Mak214-E campaign and steel making 1. bid do: crucify furnace and Pig Iron 2. Steel Making: secondhand processes nicety processes for clean steel 3. ingot teeming Segragation, squall Rimmed, semi-killed and killed steels 4. Homogenizing with a soaking process at 1150oC. 5.

shape processes: Semi-finished products (Billets, blooms, slabs) forge Rolling Continuous casting 6 3 Dr.C.Ergun, Asst.Prof Mak214-E sear Processed to change to coke Limestone, CaCO3 Iron ore Crushing hematite magnetite limonate Mining Coke Palletizing sintering CO Hot conduct Blast furnace Fuel for heating of air and other furnaces impurity mold of pig iron Carried with ladles (small cars) Later used in Road steady Cements Filler material s Couple furnace Cast iron production ! Steel production canonic Oxygen Furnace pass on Hearth Furnace (S-M) Electric bowknot Furnace vacancy Degassing Vacuum Arc Remelting Vacuum Induction Melting Electro-slag Refining 7 Dr.C.Ergun, Asst.Prof Mak214-E Iron and steel making and Blast furnace The principle ores: Hematite...If you neediness to get a full essay, order it on our website: OrderEssay.net

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