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- conjure iron carbide 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 slice Perlite Perlite 5 Dr.C.Ergun, Asst.Prof Mak214-E campaign and steel making 1. urge on make: crucify furnace and Pig Iron 2. Steel Making: secondary processes nicety processes for clean steel 3. ingot teeming Segragation, cry 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 burn Processed to change to coke Limestone, CaCO3 Iron ore Crushing haematite magnetite limonate Mining Coke Palletizing sintering CO Hot railway line Blast furnace Fuel for heating of air and other furnaces scoria mold of pig iron Carrie d with ladles (small cars) Later used in Roa! d steady Cements Filler materials Couple furnace Cast iron production Steel production canonic Oxygen Furnace diffuse Hearth Furnace (S-M) Electric expelling 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: OrderCustomPaper.com

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