A new experimental method for measuring stress-temperature phase diagram in shape memory alloys

Emil Bronstein; Eilon Faran; Doron Shilo

doi:https://doi.org/10.1016/j.scriptamat.2018.05.039

A new experimental method for measuring stress-temperature phase diagram in shape memory alloys

Emil Bronstein, Eilon Faran, Doron Shilo

Mechanical Engineering

Technion - Israel Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

The martensitic phase transformation in shape memory alloys (SMA) can be described by stress-temperature phase diagram, which provides fundamental scientific and applications-related information on this important process. We present a new experimental method that enables direct measurement of the complete stress-temperature phase diagram of SMA within a single experiment. The experimental setup is placed under an optical microscope and allows complementary visualization of the microstructure evolution throughout the phase transformation. The method is demonstrated on a SMA Ni-Mn-Ga single crystal, and the values of the Clausius-Clapeyron relation along with the latent heat of the transformation are extracted.

Original language	English
Pages (from-to)	145-148
Number of pages	4
Journal	Scripta Materialia
Volume	154
DOIs	https://doi.org/10.1016/j.scriptamat.2018.05.039
State	Published - Sep 2018

Keywords

Martensitic phase transformation
Phase diagram
Shape memory alloys (SMA)

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
General Materials Science

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https://doi.org/10.1016/j.scriptamat.2018.05.039

Cite this

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title = "A new experimental method for measuring stress-temperature phase diagram in shape memory alloys",

abstract = "The martensitic phase transformation in shape memory alloys (SMA) can be described by stress-temperature phase diagram, which provides fundamental scientific and applications-related information on this important process. We present a new experimental method that enables direct measurement of the complete stress-temperature phase diagram of SMA within a single experiment. The experimental setup is placed under an optical microscope and allows complementary visualization of the microstructure evolution throughout the phase transformation. The method is demonstrated on a SMA Ni-Mn-Ga single crystal, and the values of the Clausius-Clapeyron relation along with the latent heat of the transformation are extracted.",

keywords = "Martensitic phase transformation, Phase diagram, Shape memory alloys (SMA)",

author = "Emil Bronstein and Eilon Faran and Doron Shilo",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2018",

month = sep,

doi = "https://doi.org/10.1016/j.scriptamat.2018.05.039",

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T1 - A new experimental method for measuring stress-temperature phase diagram in shape memory alloys

AU - Bronstein, Emil

AU - Faran, Eilon

AU - Shilo, Doron

PY - 2018/9

Y1 - 2018/9

N2 - The martensitic phase transformation in shape memory alloys (SMA) can be described by stress-temperature phase diagram, which provides fundamental scientific and applications-related information on this important process. We present a new experimental method that enables direct measurement of the complete stress-temperature phase diagram of SMA within a single experiment. The experimental setup is placed under an optical microscope and allows complementary visualization of the microstructure evolution throughout the phase transformation. The method is demonstrated on a SMA Ni-Mn-Ga single crystal, and the values of the Clausius-Clapeyron relation along with the latent heat of the transformation are extracted.

AB - The martensitic phase transformation in shape memory alloys (SMA) can be described by stress-temperature phase diagram, which provides fundamental scientific and applications-related information on this important process. We present a new experimental method that enables direct measurement of the complete stress-temperature phase diagram of SMA within a single experiment. The experimental setup is placed under an optical microscope and allows complementary visualization of the microstructure evolution throughout the phase transformation. The method is demonstrated on a SMA Ni-Mn-Ga single crystal, and the values of the Clausius-Clapeyron relation along with the latent heat of the transformation are extracted.

KW - Martensitic phase transformation

KW - Phase diagram

KW - Shape memory alloys (SMA)

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DO - https://doi.org/10.1016/j.scriptamat.2018.05.039

M3 - مقالة

SN - 1359-6462

VL - 154

SP - 145

EP - 148

JO - Scripta Materialia

JF - Scripta Materialia

ER -

A new experimental method for measuring stress-temperature phase diagram in shape memory alloys

Abstract

Keywords

All Science Journal Classification (ASJC) codes

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