Chapter10_1 - A B L SS Nucleation Figure 10-2 Nucleation...

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Chapter 10 Kinetics – Heat Treatment Issues to address… Phase transformations take time to occur How does the rate of transformation depend on time and temperature? How can we slow down the transformation so that we can engineer nonequilibrium structures? How does heat treatment affect microstructure / mechanical properties?
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Why Study Phase Diagram? Stress vs Strain Diagram 0 20000 40000 60000 80000 100000 120000 140000 160000 180000 200000 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 Strain (in/in) Stress (psi) WQ AR FC Water Quenched (WQ) Furnace Cooled (FC) As Received (AR)
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Why Study Phase Diagram?
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Why Study Phase Diagram? FC AR WQ
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Fe-Fe 3 C Phase Diagram
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Martensite – Diffusionless Transformation Figure 10-11
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Figure 10-1 Knee-shaped Transformation Curve
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Unformatted text preview: A B L SS Nucleation Figure 10-2 Nucleation Rate as a Function of Temperature Figure 10-4 TTT Diagram Figure 10-6 Diffusional Transformation Figure 10-7 Low nucleation rate and high diffusion rate High nucleation rate and low diffusion rate Pearlite Figure 10.9 Bainite Martensite – Diffusionless Transformation Figure 10-11 Figure 10-12 Martensite – Diffusionless Transformation Figure 10-13 Martensite Figure 10-8 and 10 Continuous Cooling Transformation Diagram Figure 10-14 TTT Diagram for a Hypereutectiod Composition Figure 10-15 TTT diagram for a Hypoeutectiod Composition Figure 10-16 21 Example 22 Example 23 Example...
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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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Chapter10_1 - A B L SS Nucleation Figure 10-2 Nucleation...

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