Martensite Fraction Determination Using Cooling Curve Analysis

Diana Marcano; Patricio Mendez; John W. Gibbs; Th. Kannengiesser

doi:10.4028/www.scientific.net/SSP.172-174.221

Paper Titles

Microstructural Control of the Austenite Stability in Low-Alloyed TRIP Steels
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Structural Transitions in a Co₂NiGa Ferromagnetic Shape Memory Alloy
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Microstructure of Cu-Zn-Al Shape Memory Alloys Joined by Electric Stored-Energy Welding
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Acceleration of Bainitic Transformation in Nanostructured, Low Temperature Bainitic Steels by Using of Thermodynamic Model
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Martensite Fraction Determination Using Cooling Curve Analysis
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Advanced TEM and SEM Methods Applied to 3D Nano- and Microstructural Investigations of Ni₄Ti₃ Precipitates in Ni-Ti (SMA)
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Substitution Effect of the Third Element X on the Morphology of A1/L1₂/D0₂₂ Three-Phase Microstructure in Ni-V-X (X=Si, Al) Alloy
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Edge-to-Edge Matching at Ti-TiH Interfaces: Kinetics of Hydride Growth and Clustering of Precipitates with Different Orientation Relationships
p.242

Zêta Hydride Precipitation in Zirconium Alloys: an Example of Elastically Driven Morphology of Coherent Trigonal Precipitates inside a Сlose-Packed Hexagonal Matrix
p.248

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Martensite Fraction Determination Using Cooling Curve Analysis

Abstract:

This work presents a method of calculating the martensite fraction of an Fe-alloy, usingcooling curve analysis (CCA). It is based on a differential heat balance equation which takes intoaccount only convective exchange with the surroundings. By measuring a T(t) curve of an Fe-alloyand solving numerically the differential heat balance equation the martensite fraction can be calcu-lated. It is found that calculated martensite fraction using this methodology is comparable with resultsobtained using electron backscattering diffraction (EBDS).