Microstructure and damping characteristics of Ti50Ni 24.9Cu25Y0.1 shape memory alloy

Y. Y. Luo; Y. Q. Zhao; Y. F. Lu; Z. P. Xi; W. D. Zeng

doi:10.1016/j.matlet.2012.12.086

Microstructure and damping characteristics of Ti₅₀Ni _24.9Cu₂₅Y_0.1 shape memory alloy

Y. Y. Luo, Y. Q. Zhao, Y. F. Lu, Z. P. Xi, W. D. Zeng

School of Materials Sience and Engineering

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

6 Scopus citations

Abstract

The microstructure of annealed Ti₅₀Ni_24.9Cu ₂₅Y_0.1 alloy was studied through X-ray diffraction (XRD) and transmission electron microscope (TEM) measurements. It has been shown that the microstructure was composed of the B19 martensite. The temperature, frequency and strain amplitude dependences of the internal friction (IF) in the Ti₅₀Ni_24.9Cu₂₅Y_0.1 alloy were investigated by dynamic mechanical analyzer (DMA), as well as differential scanning calorimetry (DSC) measurement. The DSC results indicated that only a stage of the phase transformation took place and yttrium (Y) solid-solution narrowed the transformation hysteresis. The IF kept a high value in the stage of martensitic phase and the phase transformation due to the addition of Y element during nonisothermal process. The isothermal internal friction curves were observed in our work.

Original language	English
Pages (from-to)	125-127
Number of pages	3
Journal	Materials Letters
Volume	95
DOIs	https://doi.org/10.1016/j.matlet.2012.12.086
State	Published - 2013

Keywords

Internal friction
Phase transformation
Shape memory materials
Thermal analysis

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10.1016/j.matlet.2012.12.086

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title = "Microstructure and damping characteristics of Ti50Ni 24.9Cu25Y0.1 shape memory alloy",

abstract = "The microstructure of annealed Ti50Ni24.9Cu 25Y0.1 alloy was studied through X-ray diffraction (XRD) and transmission electron microscope (TEM) measurements. It has been shown that the microstructure was composed of the B19 martensite. The temperature, frequency and strain amplitude dependences of the internal friction (IF) in the Ti50Ni24.9Cu25Y0.1 alloy were investigated by dynamic mechanical analyzer (DMA), as well as differential scanning calorimetry (DSC) measurement. The DSC results indicated that only a stage of the phase transformation took place and yttrium (Y) solid-solution narrowed the transformation hysteresis. The IF kept a high value in the stage of martensitic phase and the phase transformation due to the addition of Y element during nonisothermal process. The isothermal internal friction curves were observed in our work.",

keywords = "Internal friction, Phase transformation, Shape memory materials, Thermal analysis",

author = "Luo, {Y. Y.} and Zhao, {Y. Q.} and Lu, {Y. F.} and Xi, {Z. P.} and Zeng, {W. D.}",

year = "2013",

doi = "10.1016/j.matlet.2012.12.086",

language = "英语",

volume = "95",

pages = "125--127",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Microstructure and damping characteristics of Ti50Ni 24.9Cu25Y0.1 shape memory alloy

AU - Luo, Y. Y.

AU - Zhao, Y. Q.

AU - Lu, Y. F.

AU - Xi, Z. P.

AU - Zeng, W. D.

PY - 2013

Y1 - 2013

N2 - The microstructure of annealed Ti50Ni24.9Cu 25Y0.1 alloy was studied through X-ray diffraction (XRD) and transmission electron microscope (TEM) measurements. It has been shown that the microstructure was composed of the B19 martensite. The temperature, frequency and strain amplitude dependences of the internal friction (IF) in the Ti50Ni24.9Cu25Y0.1 alloy were investigated by dynamic mechanical analyzer (DMA), as well as differential scanning calorimetry (DSC) measurement. The DSC results indicated that only a stage of the phase transformation took place and yttrium (Y) solid-solution narrowed the transformation hysteresis. The IF kept a high value in the stage of martensitic phase and the phase transformation due to the addition of Y element during nonisothermal process. The isothermal internal friction curves were observed in our work.

AB - The microstructure of annealed Ti50Ni24.9Cu 25Y0.1 alloy was studied through X-ray diffraction (XRD) and transmission electron microscope (TEM) measurements. It has been shown that the microstructure was composed of the B19 martensite. The temperature, frequency and strain amplitude dependences of the internal friction (IF) in the Ti50Ni24.9Cu25Y0.1 alloy were investigated by dynamic mechanical analyzer (DMA), as well as differential scanning calorimetry (DSC) measurement. The DSC results indicated that only a stage of the phase transformation took place and yttrium (Y) solid-solution narrowed the transformation hysteresis. The IF kept a high value in the stage of martensitic phase and the phase transformation due to the addition of Y element during nonisothermal process. The isothermal internal friction curves were observed in our work.

KW - Internal friction

KW - Phase transformation

KW - Shape memory materials

KW - Thermal analysis

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U2 - 10.1016/j.matlet.2012.12.086

DO - 10.1016/j.matlet.2012.12.086

M3 - 文章

AN - SCOPUS:84872806063

SN - 0167-577X

VL - 95

SP - 125

EP - 127

JO - Materials Letters

JF - Materials Letters

ER -

Microstructure and damping characteristics of Ti₅₀Ni _24.9Cu₂₅Y_0.1 shape memory alloy

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Keywords

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