Influence of nickel content and prestrain on shape memory effect of Fe-based shape memory alloys

Rui Hu; Hong Xiong Pan; Jin Shan Li; Xin Hu Wang; Xin Wei Zhao; Heng Zhi Fu

Influence of nickel content and prestrain on shape memory effect of Fe-based shape memory alloys

Rui Hu, Hong Xiong Pan, Jin Shan Li, Xin Hu Wang, Xin Wei Zhao, Heng Zhi Fu

School of Materials Sience and Engineering

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

1 Scopus citations

Abstract

The influence of nickel content (1.5%-7.0 wt%) and prestrain on shape memory effect of Fe-Mn-Si-Cr-Ni alloys were studied. The microstructure of the alloys was examined by transmission electron microscopy. The research results show that the maximum shape recovery ratio of the alloys corresponds to the magnitude of the value of Δσ, which is the difference of tensile ultimate strength σ_b and yield strength σ_0.2, and the alloy containing 3.15 wt% nickel gives the best shape memory effect. This is due to the formation of stress-induced ε martensite with single orientation in the pre-strained alloy containing 3.15 wt% nickel.

Original language	English
Pages (from-to)	11-14
Number of pages	4
Journal	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
Volume	27
Issue number	4
State	Published - Aug 2006

Keywords

Martensite
Shape memory alloy
Shape memory effect

Cite this

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title = "Influence of nickel content and prestrain on shape memory effect of Fe-based shape memory alloys",

abstract = "The influence of nickel content (1.5%-7.0 wt%) and prestrain on shape memory effect of Fe-Mn-Si-Cr-Ni alloys were studied. The microstructure of the alloys was examined by transmission electron microscopy. The research results show that the maximum shape recovery ratio of the alloys corresponds to the magnitude of the value of Δσ, which is the difference of tensile ultimate strength σb and yield strength σ0.2, and the alloy containing 3.15 wt% nickel gives the best shape memory effect. This is due to the formation of stress-induced ε martensite with single orientation in the pre-strained alloy containing 3.15 wt% nickel.",

keywords = "Martensite, Shape memory alloy, Shape memory effect",

author = "Rui Hu and Pan, {Hong Xiong} and Li, {Jin Shan} and Wang, {Xin Hu} and Zhao, {Xin Wei} and Fu, {Heng Zhi}",

year = "2006",

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language = "英语",

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journal = "Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment",

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T1 - Influence of nickel content and prestrain on shape memory effect of Fe-based shape memory alloys

AU - Hu, Rui

AU - Pan, Hong Xiong

AU - Li, Jin Shan

AU - Wang, Xin Hu

AU - Zhao, Xin Wei

AU - Fu, Heng Zhi

PY - 2006/8

Y1 - 2006/8

N2 - The influence of nickel content (1.5%-7.0 wt%) and prestrain on shape memory effect of Fe-Mn-Si-Cr-Ni alloys were studied. The microstructure of the alloys was examined by transmission electron microscopy. The research results show that the maximum shape recovery ratio of the alloys corresponds to the magnitude of the value of Δσ, which is the difference of tensile ultimate strength σb and yield strength σ0.2, and the alloy containing 3.15 wt% nickel gives the best shape memory effect. This is due to the formation of stress-induced ε martensite with single orientation in the pre-strained alloy containing 3.15 wt% nickel.

AB - The influence of nickel content (1.5%-7.0 wt%) and prestrain on shape memory effect of Fe-Mn-Si-Cr-Ni alloys were studied. The microstructure of the alloys was examined by transmission electron microscopy. The research results show that the maximum shape recovery ratio of the alloys corresponds to the magnitude of the value of Δσ, which is the difference of tensile ultimate strength σb and yield strength σ0.2, and the alloy containing 3.15 wt% nickel gives the best shape memory effect. This is due to the formation of stress-induced ε martensite with single orientation in the pre-strained alloy containing 3.15 wt% nickel.

KW - Martensite

KW - Shape memory alloy

KW - Shape memory effect

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SN - 1009-6264

VL - 27

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EP - 14

JO - Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment

JF - Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment

IS - 4

ER -

Influence of nickel content and prestrain on shape memory effect of Fe-based shape memory alloys

Abstract

Keywords

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