Dynamical Behavior of Martensite-Austenite Transitions: Simulations and Experiments

María Fabiana Laguna; Ireth García Aguilar; Pierre Arneodo Larochette; Jorge Luis Pelegrina

doi:10.4028/www.scientific.net/MSF.738-739.137

Paper Titles

EM Characterization of Precipitates in as-Cast and Annealed Ni_45.5Ti_45.5Nb₉ Shape Memory Alloys
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Twinning in Ti-48%Ni-2%Fe Single Crystals under Rolling
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Phase Transformations and Shape Memory Effect in Alloys of Zr-Ni-Co System
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XPS and NEXAFS Investigation of Electronic Energy Structure of Ti-Ni and TiNi-Cu Alloys
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Dynamical Behavior of Martensite-Austenite Transitions: Simulations and Experiments
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The Self-Accommodation and Rearrangement of Martensite Multi-Variants under Cyclic Stress: Phase-Field Simulation
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Simulation of Vibration Isolation by Shape Memory Alloy Springs Using a Microstructural Model of Shape Memory Alloy
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Precursor Nanoscale Textures in Ferroelastics: Interplay between Anisotropy and Disorder
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Implementation of Likhachev’s Model into a Finite Element Program
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HomeMaterials Science ForumMaterials Science Forum Vols. 738-739Dynamical Behavior of Martensite-Austenite...

Dynamical Behavior of Martensite-Austenite Transitions: Simulations and Experiments

Abstract:

The dynamical behavior of the reverse martensitic transformation has been numerically simulated with an atomistic model and compared with experiments in Cu-Zn-Al alloys. Starting from different configurations of the martensitic variants (varying mainly their mean size), the transformation to austenite was studied as a function of the heating speed. Both, experimental and numerical results show that at low velocities there is no dependence of the transition temperatures, whereas at higher speeds they gradually increase. Simulations allow us to have an insight of the underlying processes during the transition to austenite. They also show that a heating speed independent transition can only be obtained when a microstructure of very small variants is present.

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Periodical:

Materials Science Forum (Volumes 738-739)

Pages:

137-142

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.738-739.137

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Online since:

January 2013

Authors:

María Fabiana Laguna, Ireth García Aguilar, Pierre Arneodo Larochette, Jorge Luis Pelegrina

Keywords:

Atomistic Model, Cu-Zn-Al Alloys, Heating Rate, Martensitic Transformation (MT), Mechanical Experiments, Numerical Simulation, Solid-Solid Phase Transitions, Variant Configuration

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References

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