Section 5A Fe/C System

Section 5A Fe/C System - MATE 210 Section 5 Engineering...

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Unformatted text preview: MATE 210 Section 5 Engineering Alloys The Iron-Carbon System (Smith Chapter 9.1 & 9.2 ) Ferrous & Non-ferrous Alloys MATE 210 http://matse1.mse.uiuc.edu/~tw/metals/time.html MATE 210 Metals & Alloys Brass (Cu+Zn) Bronze (Cu+Sn, Al, Si, Ni) Aluminum Titanium C <1.4% C >2.1% C < 0.25% C .25-.6% C < .6-1.4% Cr 10% Iron (Fe) MATE 210 he Fe-C System Photos by Berenice Abbott Phase Diagrams II MATE 210 Steel = Fe - C System Microstructures Single Element Fe Polycrystalline @ 20 o C -Fe (BCC) called Ferrite Single Element Fe Polycrystalline @ 912 o C -Fe (FCC) called Austenite Two Elements Fe + C Polycrystalline @ 20 o C 1 st -Fe called Ferrite 2 nd Fe 3 C called Cementite Combo called Pearlite -Fe (light) Fe 3 C (dark) Ferrite, Autenite, Cementite Phases Pearlite - Microstructure MATE 210 The Iron Iron Carbide Phase Diagram Fe 3 C cementite eutectic: L + Fe 3 C 4.3 wt% C, 1147 C eutectoid: + Fe 3 C 0.76 wt% C, 727 C CC- ferrite FCC- austenite non-magnetic CC- ferrite agnetic Fe 3-phases Steels MATE 210...
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This note was uploaded on 04/02/2008 for the course MATE 210 taught by Professor Niebuhr during the Spring '05 term at Cal Poly.

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Section 5A Fe/C System - MATE 210 Section 5 Engineering...

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