Microstructure of stress-induced martensite in a Ti-Ni-Hf high temperature shape memory alloy

X. L. Meng; W. Cai; L. M. Wang; Y. F. Zheng; L. C. Zhao; Li Min Zhou

doi:10.1016/S1359-6462(01)01147-2

Microstructure of stress-induced martensite in a Ti-Ni-Hf high temperature shape memory alloy

X. L. Meng, W. Cai, L. M. Wang, Y. F. Zheng, L. C. Zhao, Li Min Zhou

Research output: Journal article publication › Journal article › Academic research › peer-review

46 Citations (Scopus)

Abstract

Investigations of the microstructure of stress-induced martensite (SIM) and its evolution in a Ti36Ni49Hf15alloy were discussed. A discussion on the reasons for no stress plateau in tensile stress-strain curve of the Ti36Ni49Hf15alloy deformed in an austenite state was also presented. Results showed that the morphology of SIM changed from preferentially orientated to variant-crashed/variant-intersected with increasing the deformation strain. It was also noticed that the poor shape memory effect (SME) was be due to the dislocation slip during the stress-induced martensitic transformation.

Original language	English
Pages (from-to)	1177-1182
Number of pages	6
Journal	Scripta Materialia
Volume	45
Issue number	10
DOIs	https://doi.org/10.1016/S1359-6462(01)01147-2
Publication status	Published - 19 Nov 2001

Keywords

High temperature shape memory alloy
Microstructure
Stress-induced martensite
TiNiHf alloy

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics

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10.1016/S1359-6462(01)01147-2

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title = "Microstructure of stress-induced martensite in a Ti-Ni-Hf high temperature shape memory alloy",

abstract = "Investigations of the microstructure of stress-induced martensite (SIM) and its evolution in a Ti36Ni49Hf15alloy were discussed. A discussion on the reasons for no stress plateau in tensile stress-strain curve of the Ti36Ni49Hf15alloy deformed in an austenite state was also presented. Results showed that the morphology of SIM changed from preferentially orientated to variant-crashed/variant-intersected with increasing the deformation strain. It was also noticed that the poor shape memory effect (SME) was be due to the dislocation slip during the stress-induced martensitic transformation.",

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T1 - Microstructure of stress-induced martensite in a Ti-Ni-Hf high temperature shape memory alloy

AU - Meng, X. L.

AU - Cai, W.

AU - Wang, L. M.

AU - Zheng, Y. F.

AU - Zhao, L. C.

AU - Zhou, Li Min

PY - 2001/11/19

Y1 - 2001/11/19

N2 - Investigations of the microstructure of stress-induced martensite (SIM) and its evolution in a Ti36Ni49Hf15alloy were discussed. A discussion on the reasons for no stress plateau in tensile stress-strain curve of the Ti36Ni49Hf15alloy deformed in an austenite state was also presented. Results showed that the morphology of SIM changed from preferentially orientated to variant-crashed/variant-intersected with increasing the deformation strain. It was also noticed that the poor shape memory effect (SME) was be due to the dislocation slip during the stress-induced martensitic transformation.

AB - Investigations of the microstructure of stress-induced martensite (SIM) and its evolution in a Ti36Ni49Hf15alloy were discussed. A discussion on the reasons for no stress plateau in tensile stress-strain curve of the Ti36Ni49Hf15alloy deformed in an austenite state was also presented. Results showed that the morphology of SIM changed from preferentially orientated to variant-crashed/variant-intersected with increasing the deformation strain. It was also noticed that the poor shape memory effect (SME) was be due to the dislocation slip during the stress-induced martensitic transformation.

KW - High temperature shape memory alloy

KW - Microstructure

KW - Stress-induced martensite

KW - TiNiHf alloy

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JO - Scripta Materialia

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Microstructure of stress-induced martensite in a Ti-Ni-Hf high temperature shape memory alloy

Abstract

Keywords

ASJC Scopus subject areas

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