Determination of Microscopic Strain Distribution in the Martensitic Transformation of Fe-31Ni Alloy Plates Using the Micro-grid Marker Method

Tatsuya Morikawa; Akinobu Shibata; Naoto Nakamura; Masaki Tanaka; Kenji Higashida

doi:10.2355/ISIJINTERNATIONAL.ISIJINT-2023-163

Determination of Microscopic Strain Distribution in the Martensitic Transformation of Fe-31Ni Alloy Plates Using the Micro-grid Marker Method

Tatsuya Morikawa, Akinobu Shibata, Naoto Nakamura, Masaki Tanaka, Kenji Higashida

Metals Science for Structural Materials

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

Abstract

The strain distribution due to martensitic transformation in a Fe-Ni alloy was investigated using high-precision markers drawn via electron-beam lithography. This study focused on the strain distribution within the lenticular martensite plate, which developed immediately below the martensite start temperature. The strain in the central region of lenticular martensite was determined to be greater than that near the interface boundary by measuring the displacement at each intersection of the grid markers. This finding is consistent with the shape strain distribution predicted by the phenomenological theory of martensitic transformation based on the microstructure observations.

Original language	English
Pages (from-to)	212-217
Number of pages	6
Journal	isij international
Volume	64
Issue number	2
DOIs	https://doi.org/10.2355/ISIJINTERNATIONAL.ISIJINT-2023-163
Publication status	Published - 2024

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.2355/ISIJINTERNATIONAL.ISIJINT-2023-163

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title = "Determination of Microscopic Strain Distribution in the Martensitic Transformation of Fe-31Ni Alloy Plates Using the Micro-grid Marker Method",

abstract = "The strain distribution due to martensitic transformation in a Fe-Ni alloy was investigated using high-precision markers drawn via electron-beam lithography. This study focused on the strain distribution within the lenticular martensite plate, which developed immediately below the martensite start temperature. The strain in the central region of lenticular martensite was determined to be greater than that near the interface boundary by measuring the displacement at each intersection of the grid markers. This finding is consistent with the shape strain distribution predicted by the phenomenological theory of martensitic transformation based on the microstructure observations.",

author = "Tatsuya Morikawa and Akinobu Shibata and Naoto Nakamura and Masaki Tanaka and Kenji Higashida",

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AU - Morikawa, Tatsuya

AU - Shibata, Akinobu

AU - Nakamura, Naoto

AU - Tanaka, Masaki

AU - Higashida, Kenji

N1 - Publisher Copyright: © 2024 The Iron and Steel Institute of Japan. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs license (https://creativecommons.org/licenses/by-nc-nd/4.0/).

PY - 2024

Y1 - 2024

N2 - The strain distribution due to martensitic transformation in a Fe-Ni alloy was investigated using high-precision markers drawn via electron-beam lithography. This study focused on the strain distribution within the lenticular martensite plate, which developed immediately below the martensite start temperature. The strain in the central region of lenticular martensite was determined to be greater than that near the interface boundary by measuring the displacement at each intersection of the grid markers. This finding is consistent with the shape strain distribution predicted by the phenomenological theory of martensitic transformation based on the microstructure observations.

AB - The strain distribution due to martensitic transformation in a Fe-Ni alloy was investigated using high-precision markers drawn via electron-beam lithography. This study focused on the strain distribution within the lenticular martensite plate, which developed immediately below the martensite start temperature. The strain in the central region of lenticular martensite was determined to be greater than that near the interface boundary by measuring the displacement at each intersection of the grid markers. This finding is consistent with the shape strain distribution predicted by the phenomenological theory of martensitic transformation based on the microstructure observations.

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Determination of Microscopic Strain Distribution in the Martensitic Transformation of Fe-31Ni Alloy Plates Using the Micro-grid Marker Method

Abstract

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