Microstructure characteristic and its effect on mechanical and shape memory properties in a Fe-17Mn-8Si-0.3C alloy

Motomichi Koyama; Takahiro Sawaguchi; Kaneaki Tsuzaki

doi:10.1016/j.jallcom.2013.03.289

Microstructure characteristic and its effect on mechanical and shape memory properties in a Fe-17Mn-8Si-0.3C alloy

Motomichi Koyama, Takahiro Sawaguchi, Kaneaki Tsuzaki

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

5 Citations (Scopus)

Abstract

The influences of the Si content on the mechanical and shape memory properties of Fe-17Mn-xSi-0.3C alloys (wt.%) were examined, and a specific focus was placed on the properties of the Fe-17Mn-8Si-0.3C alloy. The 8%Si addition changed the initial microstructure from an austenite to an austenite/ferrite dual phase. A sufficient amount of deformation-induced ε-martensite was observed despite the pre-existing ferrite. Mn and C were preferentially distributed to the austenite, while Si was localized in the ferrite. The formation of ferrite increased the yield strength and the shape recovery stress, and decreased the starting temperature for the shape recovery.

Original language	English
Pages (from-to)	15-19
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	573
DOIs	https://doi.org/10.1016/j.jallcom.2013.03.289
Publication status	Published - 2013 Jan 1
Externally published	Yes

Keywords

Metallography
Microstructure
Phase transition
Scanning electron microscopy (SEM)
Shape memory

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.jallcom.2013.03.289

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title = "Microstructure characteristic and its effect on mechanical and shape memory properties in a Fe-17Mn-8Si-0.3C alloy",

abstract = "The influences of the Si content on the mechanical and shape memory properties of Fe-17Mn-xSi-0.3C alloys (wt.%) were examined, and a specific focus was placed on the properties of the Fe-17Mn-8Si-0.3C alloy. The 8%Si addition changed the initial microstructure from an austenite to an austenite/ferrite dual phase. A sufficient amount of deformation-induced ε-martensite was observed despite the pre-existing ferrite. Mn and C were preferentially distributed to the austenite, while Si was localized in the ferrite. The formation of ferrite increased the yield strength and the shape recovery stress, and decreased the starting temperature for the shape recovery.",

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author = "Motomichi Koyama and Takahiro Sawaguchi and Kaneaki Tsuzaki",

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doi = "10.1016/j.jallcom.2013.03.289",

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TY - JOUR

T1 - Microstructure characteristic and its effect on mechanical and shape memory properties in a Fe-17Mn-8Si-0.3C alloy

AU - Koyama, Motomichi

AU - Sawaguchi, Takahiro

AU - Tsuzaki, Kaneaki

PY - 2013/1/1

Y1 - 2013/1/1

N2 - The influences of the Si content on the mechanical and shape memory properties of Fe-17Mn-xSi-0.3C alloys (wt.%) were examined, and a specific focus was placed on the properties of the Fe-17Mn-8Si-0.3C alloy. The 8%Si addition changed the initial microstructure from an austenite to an austenite/ferrite dual phase. A sufficient amount of deformation-induced ε-martensite was observed despite the pre-existing ferrite. Mn and C were preferentially distributed to the austenite, while Si was localized in the ferrite. The formation of ferrite increased the yield strength and the shape recovery stress, and decreased the starting temperature for the shape recovery.

AB - The influences of the Si content on the mechanical and shape memory properties of Fe-17Mn-xSi-0.3C alloys (wt.%) were examined, and a specific focus was placed on the properties of the Fe-17Mn-8Si-0.3C alloy. The 8%Si addition changed the initial microstructure from an austenite to an austenite/ferrite dual phase. A sufficient amount of deformation-induced ε-martensite was observed despite the pre-existing ferrite. Mn and C were preferentially distributed to the austenite, while Si was localized in the ferrite. The formation of ferrite increased the yield strength and the shape recovery stress, and decreased the starting temperature for the shape recovery.

KW - Metallography

KW - Microstructure

KW - Phase transition

KW - Scanning electron microscopy (SEM)

KW - Shape memory

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U2 - 10.1016/j.jallcom.2013.03.289

DO - 10.1016/j.jallcom.2013.03.289

M3 - Letter

AN - SCOPUS:84877080851

VL - 573

SP - 15

EP - 19

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

ER -

Microstructure characteristic and its effect on mechanical and shape memory properties in a Fe-17Mn-8Si-0.3C alloy

Abstract

Keywords

ASJC Scopus subject areas

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