Chapter11-Lecture 21 - spring 2010

Chapter11-Lecture 21 - spring 2010 - Chapter 11 - Metals...

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Chapter 11 - Metals Issues to address… What major types of metals do we use? Why do ferrous alloys have wide applications? Why do we need to use nonferrous alloys? 375x
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Ferrous and Nonferrous Alloys >90% metallic materials are ferrous alloys
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Steels – 0.05-2.0 Cast irons – 2-4.5 Low-alloy steels -<5% High-alloy steels ->5% Carbon steel - C (plain carbon steel)- Ferrous Alloys Carbon and low-alloy steels are major ferrous alloys, Why? Fe Fe 3 C Weight percent of carbon Steels Cast irons Fig. 9-19
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Table 11. 1 AISI-SAE Designation
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Stainless Steels 0.02 0.77 α Fe C γ 0.02 0.77 α Fe 3 C
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Tool Steels
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8 Super Alloys
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Four types of cast irons: 1. White irons Figure 11-1 Cast Irons Eutectic carbide Pearlite Fe Fe 3 C Weight percent of carbon Steels Cast irons Mill liners Shot - Blasting nozzles Wear and abrasion resistant Fig. 9-19
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2. Gray irons Figure 11-1 Cast Irons Pearlite Graphite Fig. 9-20
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1. Ductile irons Graphite nodules encased in envelopes of free ferrite Pearlite Ferrite Graphite nodules Cast Irons Figure 11-1 4. Malleable irons
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This note was uploaded on 10/03/2011 for the course EMCH 371 taught by Professor Dai-hattrick during the Spring '11 term at South Carolina.

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Chapter11-Lecture 21 - spring 2010 - Chapter 11 - Metals...

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