Solid Solution Thermal Equilibrium Diagram

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Presentation transcript:

Solid Solution Thermal Equilibrium Diagram Stephen Burke

Liquid Solid Pasty Liquidus Line Solidus Line 10 20 30 40 50 60 70 80 % of metal B in alloy 10 20 30 40 50 60 70 80 90 100 Start of Solidification 270 332 400 445 492 524 552 580 603 618 630 End of Solidification 272 280 300 318 340 368 404 449 510 650 630 618 603 600 Liquid 580 552 Liquidus Line 550 524 510 492 500 Label as A Label as B Label as C 445 449 Pasty 450 A B C 400 404 400 368 For the alloy of 50% B determine from the diagram the ratio of phases at 400°C. 340 350 Temperature °C 332 318 Solidus Line 300 300 272 280 270 250 Draw Y-axis to represent Temperature 200 Draw line across from 400 °C 150 Solid Draw X-axis to represent Composition 100 Draw line up from 50% 30 19 50 10 20 30 40 50 60 70 80 90 100 % Metal B AB BC Weight of Solid Weight of Liquid 30 19 = =