MTL 200 MIDTERM 2 QUESTIONS WITH
CORRECT ANSWERS 2025
WhatRisRtheRliquidusR-RCORRECTRANSWERR-OnRaRbinaryRphaseRdiagram,RtheRlineRorRboundary
separatingRliquid-RandRliquidRsolid-
phaseRregions.RForRanRalloy,RtheRliquidusRtemperatureRisRtheRtemperatureRatRwhichRaRsolidRphaseRf
irstRformsRunderRconditionsRofRequilibriumRcooling.
WhatRisRtheRleverRruleR-RCORRECTRANSWERR-ARmathematicalRexpression,RsuchRasREquationR9.1bRor
EquationR9.2b,RbyRwhichRtheRrelativeRphaseRamountsRinRaRtwoRphaseRalloyRatRequilibriumRmayRbeR
computed.
isomorphousR-RCORRECTRANSWERR-HavingRtheRsameRstructure.RInRtheRphaseRdiagram
sense,RisomorphicityRmeansRhavingRtheRsameRcrystal
structureRorRcompleteRsolidRsolubilityRforRallRcompositions
(seeRFigureR9.3a).
WhatRdoesRaRhighRfrequencyRofRbranchesRdoRtoRaRpolymersRcrystallization.R-RCORRECTRANSWERR-
DecreaseRitsRdensity.
CORRECT ANSWERS 2025
WhatRisRtheRliquidusR-RCORRECTRANSWERR-OnRaRbinaryRphaseRdiagram,RtheRlineRorRboundary
separatingRliquid-RandRliquidRsolid-
phaseRregions.RForRanRalloy,RtheRliquidusRtemperatureRisRtheRtemperatureRatRwhichRaRsolidRphaseRf
irstRformsRunderRconditionsRofRequilibriumRcooling.
WhatRisRtheRleverRruleR-RCORRECTRANSWERR-ARmathematicalRexpression,RsuchRasREquationR9.1bRor
EquationR9.2b,RbyRwhichRtheRrelativeRphaseRamountsRinRaRtwoRphaseRalloyRatRequilibriumRmayRbeR
computed.
isomorphousR-RCORRECTRANSWERR-HavingRtheRsameRstructure.RInRtheRphaseRdiagram
sense,RisomorphicityRmeansRhavingRtheRsameRcrystal
structureRorRcompleteRsolidRsolubilityRforRallRcompositions
(seeRFigureR9.3a).
WhatRdoesRaRhighRfrequencyRofRbranchesRdoRtoRaRpolymersRcrystallization.R-RCORRECTRANSWERR-
DecreaseRitsRdensity.