Compressive response of nickel-rich NiTiHf high-temperature shape memory single crystals along the [1 1 1] orientation

H. E. Karaca; S. M. Saghaian; B. Basaran; G. S. Bigelow; R. D. Noebe; Y. I. Chumlyakov

doi:10.1016/j.scriptamat.2011.06.027

Compressive response of nickel-rich NiTiHf high-temperature shape memory single crystals along the [1 1 1] orientation

H. E. Karaca, S. M. Saghaian, B. Basaran, G. S. Bigelow, R. D. Noebe, Y. I. Chumlyakov

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

61 Scopus citations

Abstract

The shape memory properties of Ni-rich NiTiHf single crystals along the [1 1 1] orientation were investigated by thermal cycling under constant stress and stress cycling at constant temperature in compression. The single crystals demonstrate stable shape memory behavior under ultrahigh stress levels (1000 MPa) with about 3% transformation strain, a maximum work output of 30 J cm ^-3 and nearly perfect pseudoelasticity at high temperatures (180-200 °C).

Original language	English
Pages (from-to)	577-580
Number of pages	4
Journal	Scripta Materialia
Volume	65
Issue number	7
DOIs	https://doi.org/10.1016/j.scriptamat.2011.06.027
State	Published - Oct 2011

Bibliographical note

Funding Information:
This work was supported in part by the KY NASA EPSCoR ( N08R02B ) and NASA Fundamental Aeronautics Program under the Supersonics Project , Dale Hopkins, API.

Keywords

Martensitic phase transformation
NiTiHf
Shape memory alloys
Single crystals
Transformation strain

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.2011.06.027

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title = "Compressive response of nickel-rich NiTiHf high-temperature shape memory single crystals along the [1 1 1] orientation",

abstract = "The shape memory properties of Ni-rich NiTiHf single crystals along the [1 1 1] orientation were investigated by thermal cycling under constant stress and stress cycling at constant temperature in compression. The single crystals demonstrate stable shape memory behavior under ultrahigh stress levels (1000 MPa) with about 3% transformation strain, a maximum work output of 30 J cm -3 and nearly perfect pseudoelasticity at high temperatures (180-200 °C).",

keywords = "Martensitic phase transformation, NiTiHf, Shape memory alloys, Single crystals, Transformation strain",

author = "Karaca, {H. E.} and Saghaian, {S. M.} and B. Basaran and Bigelow, {G. S.} and Noebe, {R. D.} and Chumlyakov, {Y. I.}",

note = "Funding Information: This work was supported in part by the KY NASA EPSCoR ( N08R02B ) and NASA Fundamental Aeronautics Program under the Supersonics Project , Dale Hopkins, API.",

year = "2011",

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doi = "10.1016/j.scriptamat.2011.06.027",

language = "English",

volume = "65",

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T1 - Compressive response of nickel-rich NiTiHf high-temperature shape memory single crystals along the [1 1 1] orientation

AU - Karaca, H. E.

AU - Saghaian, S. M.

AU - Basaran, B.

AU - Bigelow, G. S.

AU - Noebe, R. D.

AU - Chumlyakov, Y. I.

N1 - Funding Information: This work was supported in part by the KY NASA EPSCoR ( N08R02B ) and NASA Fundamental Aeronautics Program under the Supersonics Project , Dale Hopkins, API.

PY - 2011/10

Y1 - 2011/10

N2 - The shape memory properties of Ni-rich NiTiHf single crystals along the [1 1 1] orientation were investigated by thermal cycling under constant stress and stress cycling at constant temperature in compression. The single crystals demonstrate stable shape memory behavior under ultrahigh stress levels (1000 MPa) with about 3% transformation strain, a maximum work output of 30 J cm -3 and nearly perfect pseudoelasticity at high temperatures (180-200 °C).

AB - The shape memory properties of Ni-rich NiTiHf single crystals along the [1 1 1] orientation were investigated by thermal cycling under constant stress and stress cycling at constant temperature in compression. The single crystals demonstrate stable shape memory behavior under ultrahigh stress levels (1000 MPa) with about 3% transformation strain, a maximum work output of 30 J cm -3 and nearly perfect pseudoelasticity at high temperatures (180-200 °C).

KW - Martensitic phase transformation

KW - NiTiHf

KW - Shape memory alloys

KW - Single crystals

KW - Transformation strain

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DO - 10.1016/j.scriptamat.2011.06.027

M3 - Article

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SN - 1359-6462

VL - 65

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JO - Scripta Materialia

JF - Scripta Materialia

IS - 7

ER -

Compressive response of nickel-rich NiTiHf high-temperature shape memory single crystals along the [1 1 1] orientation

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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