lab_report_3 - Hseyin ERGN 1346550-Group3 METE 206 LAB...

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Hüseyin ERGÜN 1346550-Group3 METE 206 LAB REPORT OF EXPERIMENT 3 MICROSTRUCTURE OF MATERIALS Objective of this experiment : The aim of this experiment is to observe the change in microstructures of ferrous alloys with different cooling rates, carbon contents and plastic deformation. Another aim of this experiment is to observe the difference in microstructure of brass from ferrous alloys. Apparatus : 1. An optical microscope. 2. Etching Reagent (%2 Nital) 3. Polishing machine 4. Emeryal paper Specimens : 1. AISI 1020 steel specimen. Furnace cooled. 2. AISI 1060 steel specimens. Furnace cooled, air cooled, quenched in water / oil, 3. Brass specimen. 4. Plastically deformed steel specimen. 5. Tool steel (H13) specimen. Results and Discussions : If the cooling rates of 1060 steel specimens become higher the primary ferrite grains become smaller and pearlite become finer. In oil quenching martensite is formed. In furnace cooled 1020 steel there is much more primary ferrite than 1060 steel because of less carbon content
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This note was uploaded on 12/27/2011 for the course MATH 265 taught by Professor Asas during the Spring '11 term at Middle East Technical University.

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lab_report_3 - Hseyin ERGN 1346550-Group3 METE 206 LAB...

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