Chapter 9_Part_6

Chapter 9_Part_6 - Binary Eutectic Systems (V) Compositions...

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26 MSE 2090: Introduction to Materials Science Chapter 9, Phase Diagrams Binary Eutectic Systems (V) Compositions and relative amounts of phases are determined from the same tie lines and lever rule, as for isomorphous alloys C For points A, B, and C calculate the compositions (wt. %) and relative amounts (mass fractions) of phases present. B A
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27 MSE 2090: Introduction to Materials Science Chapter 9, Phase Diagrams Development of microstructure in eutectic alloys (I) Several different types of microstructure can be formed in slow cooling an different compositions. Let’s consider cooling of liquid lead – tin system at different compositions. In this case of lead-rich alloy (0-2 wt. % of tin) solidification proceeds in the same manner as for isomorphous alloys (e.g. Cu-Ni) that we discussed earlier. L →α +L
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28 MSE 2090: Introduction to Materials Science Chapter 9, Phase Diagrams Development of microstructure in eutectic alloys (II) At compositions between the room temperature solubility
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This note was uploaded on 02/14/2012 for the course MSE 2090 taught by Professor Leoindzhiglei during the Fall '10 term at UVA.

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Chapter 9_Part_6 - Binary Eutectic Systems (V) Compositions...

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