Chapter Outline: Phase Diagrams - …

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1MSE 2090: Introduction to Materials ScienceChapter 9, Phase DiagramsMicrostructure and Phase Transformations in Multicomponent SystemsChapter outline : Phase Diagrams Definitions and basic concepts phases and microstructure Binary isomorphous systems (complete solid solubility) Binary eutectic systems (limited solid solubility) Binary systems with intermediate phases /compounds The iron-carbon system (steel and cast iron)2MSE 2090: Introduction to Materials ScienceChapter 9, Phase DiagramsComponent- chemically recognizable species (Fe and C in carbon steel, H2O and Sucrose in sugar solution in water). A binaryalloy contains two components, a ternaryalloy three, a portion of a system that has uniform physical andchemical characteristics.

MSE 2090: Introduction to Materials Science Chapter 9, Phase Diagrams 5 A system is at equilibrium if at constant temperature, pressure and composition the system is stable, not changing with time.

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