Unusual reversible twinning modes and giant superelastic strains in FeNiCoAlNb single crystals

Y. I. Chumlyakov; I. V. Kireeva; O. A. Kutz; A. S. Turabi; H. E. Karaca; I. Karaman

doi:10.1016/j.scriptamat.2016.03.027

Unusual reversible twinning modes and giant superelastic strains in FeNiCoAlNb single crystals

Y. I. Chumlyakov
, I. V. Kireeva
, O. A. Kutz
, A. S. Turabi
, H. E. Karaca
, I. Karaman

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

38 Scopus citations

Abstract

The superelastic response of the Fe₄₁Ni₂₈Co₁₇Al_11.5Nb_2.5 (at. %) single crystals oriented along the [001] direction was investigated in tension at various temperatures after aging at 973 K for 0.5 h. The aging treatment led to the formation of ordered γ' particles with particle sizes of less than 3 nm. Abnormally large reversible strain of up to 15.3% was observed at 77 K, the highest ever reported for an iron-based shape memory alloys. It has been revealed that this giant superelastic strain, significantly higher than the theoretical transformation strain, is associated with γ-α' martensitic transformation and elastic mechanical twinning of < 011 >{110} type.

Original language	English
Pages (from-to)	43-46
Number of pages	4
Journal	Scripta Materialia
Volume	119
DOIs	https://doi.org/10.1016/j.scriptamat.2016.03.027
State	Published - Jul 1 2016

Bibliographical note

Publisher Copyright:
© 2016 Published by Elsevier B.V.

Funding

Financial support by the RSF grant No. 14-29-00012 is gratefully acknowledged.

Funders	Funder number
Russell Sage Foundation	14-29-00012

Keywords

FeNiCoAlNb
Iron-based shape memory alloys
Superelastic Strain
Superelasticity
Twinning

ASJC Scopus subject areas

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

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10.1016/j.scriptamat.2016.03.027

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title = "Unusual reversible twinning modes and giant superelastic strains in FeNiCoAlNb single crystals",

abstract = "The superelastic response of the Fe41Ni28Co17Al11.5Nb2.5 (at. \%) single crystals oriented along the [001] direction was investigated in tension at various temperatures after aging at 973 K for 0.5 h. The aging treatment led to the formation of ordered γ' particles with particle sizes of less than 3 nm. Abnormally large reversible strain of up to 15.3\% was observed at 77 K, the highest ever reported for an iron-based shape memory alloys. It has been revealed that this giant superelastic strain, significantly higher than the theoretical transformation strain, is associated with γ-α' martensitic transformation and elastic mechanical twinning of < 011 >\{110\} type.",

keywords = "FeNiCoAlNb, Iron-based shape memory alloys, Superelastic Strain, Superelasticity, Twinning",

author = "Chumlyakov, \{Y. I.\} and Kireeva, \{I. V.\} and Kutz, \{O. A.\} and Turabi, \{A. S.\} and Karaca, \{H. E.\} and I. Karaman",

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year = "2016",

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day = "1",

doi = "10.1016/j.scriptamat.2016.03.027",

language = "English",

volume = "119",

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T1 - Unusual reversible twinning modes and giant superelastic strains in FeNiCoAlNb single crystals

AU - Chumlyakov, Y. I.

AU - Kireeva, I. V.

AU - Kutz, O. A.

AU - Turabi, A. S.

AU - Karaca, H. E.

AU - Karaman, I.

PY - 2016/7/1

Y1 - 2016/7/1

N2 - The superelastic response of the Fe41Ni28Co17Al11.5Nb2.5 (at. %) single crystals oriented along the [001] direction was investigated in tension at various temperatures after aging at 973 K for 0.5 h. The aging treatment led to the formation of ordered γ' particles with particle sizes of less than 3 nm. Abnormally large reversible strain of up to 15.3% was observed at 77 K, the highest ever reported for an iron-based shape memory alloys. It has been revealed that this giant superelastic strain, significantly higher than the theoretical transformation strain, is associated with γ-α' martensitic transformation and elastic mechanical twinning of < 011 >{110} type.

AB - The superelastic response of the Fe41Ni28Co17Al11.5Nb2.5 (at. %) single crystals oriented along the [001] direction was investigated in tension at various temperatures after aging at 973 K for 0.5 h. The aging treatment led to the formation of ordered γ' particles with particle sizes of less than 3 nm. Abnormally large reversible strain of up to 15.3% was observed at 77 K, the highest ever reported for an iron-based shape memory alloys. It has been revealed that this giant superelastic strain, significantly higher than the theoretical transformation strain, is associated with γ-α' martensitic transformation and elastic mechanical twinning of < 011 >{110} type.

KW - FeNiCoAlNb

KW - Iron-based shape memory alloys

KW - Superelastic Strain

KW - Superelasticity

KW - Twinning

UR - https://www.scopus.com/pages/publications/84962838998

UR - https://www.scopus.com/pages/publications/84962838998#tab=citedBy

U2 - 10.1016/j.scriptamat.2016.03.027

DO - 10.1016/j.scriptamat.2016.03.027

M3 - Article

AN - SCOPUS:84962838998

SN - 1359-6462

VL - 119

SP - 43

EP - 46

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Unusual reversible twinning modes and giant superelastic strains in FeNiCoAlNb single crystals

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

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