Mechanical and functional properties of amorphous-crystalline thin ribbons of Ti50Ni25Cu25 and Ti40.7Hf9.5Ni44.8Cu5 shape memory alloys

S. Belyaev, N. Resnina, V. Slesarenko

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Abstract

Amorphous melt spun ribbons of Ti50Ni25Cu25 and Ti40.7Hf9.5Ni44.8Cu5 alloys were partially crystallized to different volume fraction of crystalline phase from 0 to 100 %. The mechanical and functional properties of amorphous-crystalline thin ribbons were studied. It was shown that the fully amorphous sample of Ti50Ni25Cu25 alloy was deformed elastically up to 2.2 % and then it was deformed plastically up to break. The fully amorphous sample of Ti40.7Hf9.5Ni44.8Cu5 alloy was deformed elastically up to failure and the plastic deformation was not observed. It was found that amorphous-crystalline samples demonstrated the shape memory effect on heating. The maximum recovered strain was 3.3 % in fully crystallized Ti50Ni25Cu25 alloy and it attended 5 % in Ti40.7Hf9.5Ni44.8Cu5 alloy. The Ti40.7Hf9.5Ni44.8Cu5 alloy demonstrated the two-way shape memory effect if the amorphous and crystalline phases coexisted in the sample.
Original languageEnglish
JournalSmart Materials and Structures
Volume20
Issue number8
DOIs
StatePublished - 2011

Keywords

  • martensitic transformations
  • amorphous-crystalline alloys
  • shape memory effect
  • two-way shape memory effect

Cite this

@article{e0791eff883b40f7a29148a3a76c6c89,
title = "Mechanical and functional properties of amorphous-crystalline thin ribbons of Ti50Ni25Cu25 and Ti40.7Hf9.5Ni44.8Cu5 shape memory alloys",
abstract = "Amorphous melt spun ribbons of Ti50Ni25Cu25 and Ti40.7Hf9.5Ni44.8Cu5 alloys were partially crystallized to different volume fraction of crystalline phase from 0 to 100 {\%}. The mechanical and functional properties of amorphous-crystalline thin ribbons were studied. It was shown that the fully amorphous sample of Ti50Ni25Cu25 alloy was deformed elastically up to 2.2 {\%} and then it was deformed plastically up to break. The fully amorphous sample of Ti40.7Hf9.5Ni44.8Cu5 alloy was deformed elastically up to failure and the plastic deformation was not observed. It was found that amorphous-crystalline samples demonstrated the shape memory effect on heating. The maximum recovered strain was 3.3 {\%} in fully crystallized Ti50Ni25Cu25 alloy and it attended 5 {\%} in Ti40.7Hf9.5Ni44.8Cu5 alloy. The Ti40.7Hf9.5Ni44.8Cu5 alloy demonstrated the two-way shape memory effect if the amorphous and crystalline phases coexisted in the sample.",
keywords = "martensitic transformations, amorphous-crystalline alloys, shape memory effect, two-way shape memory effect",
author = "S. Belyaev and N. Resnina and V. Slesarenko",
year = "2011",
doi = "10.1088/0964-1726/20/8/082003",
language = "English",
volume = "20",
journal = "Smart Materials and Structures",
issn = "0964-1726",
publisher = "IOP Publishing Ltd.",
number = "8",

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TY - JOUR

T1 - Mechanical and functional properties of amorphous-crystalline thin ribbons of Ti50Ni25Cu25 and Ti40.7Hf9.5Ni44.8Cu5 shape memory alloys

AU - Belyaev, S.

AU - Resnina, N.

AU - Slesarenko, V.

PY - 2011

Y1 - 2011

N2 - Amorphous melt spun ribbons of Ti50Ni25Cu25 and Ti40.7Hf9.5Ni44.8Cu5 alloys were partially crystallized to different volume fraction of crystalline phase from 0 to 100 %. The mechanical and functional properties of amorphous-crystalline thin ribbons were studied. It was shown that the fully amorphous sample of Ti50Ni25Cu25 alloy was deformed elastically up to 2.2 % and then it was deformed plastically up to break. The fully amorphous sample of Ti40.7Hf9.5Ni44.8Cu5 alloy was deformed elastically up to failure and the plastic deformation was not observed. It was found that amorphous-crystalline samples demonstrated the shape memory effect on heating. The maximum recovered strain was 3.3 % in fully crystallized Ti50Ni25Cu25 alloy and it attended 5 % in Ti40.7Hf9.5Ni44.8Cu5 alloy. The Ti40.7Hf9.5Ni44.8Cu5 alloy demonstrated the two-way shape memory effect if the amorphous and crystalline phases coexisted in the sample.

AB - Amorphous melt spun ribbons of Ti50Ni25Cu25 and Ti40.7Hf9.5Ni44.8Cu5 alloys were partially crystallized to different volume fraction of crystalline phase from 0 to 100 %. The mechanical and functional properties of amorphous-crystalline thin ribbons were studied. It was shown that the fully amorphous sample of Ti50Ni25Cu25 alloy was deformed elastically up to 2.2 % and then it was deformed plastically up to break. The fully amorphous sample of Ti40.7Hf9.5Ni44.8Cu5 alloy was deformed elastically up to failure and the plastic deformation was not observed. It was found that amorphous-crystalline samples demonstrated the shape memory effect on heating. The maximum recovered strain was 3.3 % in fully crystallized Ti50Ni25Cu25 alloy and it attended 5 % in Ti40.7Hf9.5Ni44.8Cu5 alloy. The Ti40.7Hf9.5Ni44.8Cu5 alloy demonstrated the two-way shape memory effect if the amorphous and crystalline phases coexisted in the sample.

KW - martensitic transformations

KW - amorphous-crystalline alloys

KW - shape memory effect

KW - two-way shape memory effect

U2 - 10.1088/0964-1726/20/8/082003

DO - 10.1088/0964-1726/20/8/082003

M3 - Article

VL - 20

JO - Smart Materials and Structures

JF - Smart Materials and Structures

SN - 0964-1726

IS - 8

ER -