Martensitic transformation and shape memory effect at high temperatures in off-stoichiometric Co2VSi Heusler alloys

Hengxing Jiang; Xiao Xu; Toshihiro Omori; Makoto Nagasako; Jingjing Ruan; Shuiyuan Yang; Cuiping Wang; Xingjun Liu; Ryosuke Kainuma

doi:10.1016/j.msea.2016.08.083

Martensitic transformation and shape memory effect at high temperatures in off-stoichiometric Co₂VSi Heusler alloys

Hengxing Jiang
, Xiao Xu
, Toshihiro Omori
, Makoto Nagasako
, Jingjing Ruan
, Shuiyuan Yang
, Cuiping Wang
, Xingjun Liu^*
, Ryosuke Kainuma

^*Corresponding author for this work

Xiamen University
Tohoku University

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

32 Scopus citations

Abstract

Martensitic transformation in off-stoichiometric Co₂VSi Heusler alloy was firstly confirmed in this work. The martensite phase presents an ordered 2M non-modulate D0₂₂ structure transformed from L2₁ Heusler structure. In the Co_63.5V_17.0Si_19.5 alloy, the forward and reverse martensitic transformation temperatures are extremely high which reach up to 683 °C and 693 °C, respectively, higher than most known Heusler-type high-temperature shape memory alloys. And results also indicate that the single martensite phase alloy exhibits a good ductility and strength with the compressive strain of over 15% and strength of about 2300 MPa, respectively. What's more, the recoverable strain being maximal to around 3.1% can be obtained at high temperature (750–800 °C) due to its reverse martensitic transformation.

Original language	English
Pages (from-to)	191-196
Number of pages	6
Journal	Materials Science and Engineering: A
Volume	676
DOIs	https://doi.org/10.1016/j.msea.2016.08.083
State	Published - 31 Oct 2016
Externally published	Yes

Keywords

Co-V-Si Heusler alloy
Martensitic transformations
Mechanical property
Shape memory effect

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10.1016/j.msea.2016.08.083

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@article{7bba2660b57f47d691eb8e2d122e8f1f,

title = "Martensitic transformation and shape memory effect at high temperatures in off-stoichiometric Co2VSi Heusler alloys",

abstract = "Martensitic transformation in off-stoichiometric Co2VSi Heusler alloy was firstly confirmed in this work. The martensite phase presents an ordered 2M non-modulate D022 structure transformed from L21 Heusler structure. In the Co63.5V17.0Si19.5 alloy, the forward and reverse martensitic transformation temperatures are extremely high which reach up to 683 °C and 693 °C, respectively, higher than most known Heusler-type high-temperature shape memory alloys. And results also indicate that the single martensite phase alloy exhibits a good ductility and strength with the compressive strain of over 15\% and strength of about 2300 MPa, respectively. What's more, the recoverable strain being maximal to around 3.1\% can be obtained at high temperature (750–800 °C) due to its reverse martensitic transformation.",

keywords = "Co-V-Si Heusler alloy, Martensitic transformations, Mechanical property, Shape memory effect",

author = "Hengxing Jiang and Xiao Xu and Toshihiro Omori and Makoto Nagasako and Jingjing Ruan and Shuiyuan Yang and Cuiping Wang and Xingjun Liu and Ryosuke Kainuma",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2016",

month = oct,

day = "31",

doi = "10.1016/j.msea.2016.08.083",

language = "英语",

volume = "676",

pages = "191--196",

journal = "Materials Science and Engineering: A",

issn = "0921-5093",

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}

TY - JOUR

T1 - Martensitic transformation and shape memory effect at high temperatures in off-stoichiometric Co2VSi Heusler alloys

AU - Jiang, Hengxing

AU - Xu, Xiao

AU - Omori, Toshihiro

AU - Nagasako, Makoto

AU - Ruan, Jingjing

AU - Yang, Shuiyuan

AU - Wang, Cuiping

AU - Liu, Xingjun

AU - Kainuma, Ryosuke

PY - 2016/10/31

Y1 - 2016/10/31

N2 - Martensitic transformation in off-stoichiometric Co2VSi Heusler alloy was firstly confirmed in this work. The martensite phase presents an ordered 2M non-modulate D022 structure transformed from L21 Heusler structure. In the Co63.5V17.0Si19.5 alloy, the forward and reverse martensitic transformation temperatures are extremely high which reach up to 683 °C and 693 °C, respectively, higher than most known Heusler-type high-temperature shape memory alloys. And results also indicate that the single martensite phase alloy exhibits a good ductility and strength with the compressive strain of over 15% and strength of about 2300 MPa, respectively. What's more, the recoverable strain being maximal to around 3.1% can be obtained at high temperature (750–800 °C) due to its reverse martensitic transformation.

AB - Martensitic transformation in off-stoichiometric Co2VSi Heusler alloy was firstly confirmed in this work. The martensite phase presents an ordered 2M non-modulate D022 structure transformed from L21 Heusler structure. In the Co63.5V17.0Si19.5 alloy, the forward and reverse martensitic transformation temperatures are extremely high which reach up to 683 °C and 693 °C, respectively, higher than most known Heusler-type high-temperature shape memory alloys. And results also indicate that the single martensite phase alloy exhibits a good ductility and strength with the compressive strain of over 15% and strength of about 2300 MPa, respectively. What's more, the recoverable strain being maximal to around 3.1% can be obtained at high temperature (750–800 °C) due to its reverse martensitic transformation.

KW - Co-V-Si Heusler alloy

KW - Martensitic transformations

KW - Mechanical property

KW - Shape memory effect

UR - https://www.scopus.com/pages/publications/84985952073

U2 - 10.1016/j.msea.2016.08.083

DO - 10.1016/j.msea.2016.08.083

M3 - 文章

AN - SCOPUS:84985952073

SN - 0921-5093

VL - 676

SP - 191

EP - 196

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Martensitic transformation and shape memory effect at high temperatures in off-stoichiometric Co₂VSi Heusler alloys

Abstract

Keywords

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