Oxidation behavior of TiNi shape memory alloy at 450-750°C

C. H. Xu; X. Q. Ma; San-Qiang Shi; C. H. Woo

doi:10.1016/S0921-5093(03)00287-9

Oxidation behavior of TiNi shape memory alloy at 450-750°C

C. H. Xu, X. Q. Ma, San-Qiang Shi, C. H. Woo

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

86 Citations (Scopus)

Abstract

The isothermal oxidation behavior of a commercial TiNi shape memory alloy (SMA) in pure oxygen over the temperature range of 450-750 °C was studied. The oxidation products were identified by X-ray diffraction (XRD). Characterization of the specimens after oxidation was conducted using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The oxidation kinetics at different temperature was studied, according to parabolic and logarithmic laws. The mechanism and activation energy of oxidation were discussed based on the oxidation kinetics. The spallation of the multi-layer scale formed during oxidation was analyzed by growth induced thermal stresses.

Original language	English
Pages (from-to)	45-50
Number of pages	6
Journal	Materials Science and Engineering A
Volume	371
Issue number	1-2
DOIs	https://doi.org/10.1016/S0921-5093(03)00287-9
Publication status	Published - 25 Apr 2004

Keywords

Activation energy
Diffusion coefficient
Oxidation
Scale spallation
TiNi

ASJC Scopus subject areas

General Materials Science

More information

10.1016/S0921-5093(03)00287-9

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title = "Oxidation behavior of TiNi shape memory alloy at 450-750°C",

abstract = "The isothermal oxidation behavior of a commercial TiNi shape memory alloy (SMA) in pure oxygen over the temperature range of 450-750 °C was studied. The oxidation products were identified by X-ray diffraction (XRD). Characterization of the specimens after oxidation was conducted using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The oxidation kinetics at different temperature was studied, according to parabolic and logarithmic laws. The mechanism and activation energy of oxidation were discussed based on the oxidation kinetics. The spallation of the multi-layer scale formed during oxidation was analyzed by growth induced thermal stresses.",

keywords = "Activation energy, Diffusion coefficient, Oxidation, Scale spallation, TiNi",

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AU - Xu, C. H.

AU - Ma, X. Q.

AU - Shi, San-Qiang

AU - Woo, C. H.

PY - 2004/4/25

Y1 - 2004/4/25

N2 - The isothermal oxidation behavior of a commercial TiNi shape memory alloy (SMA) in pure oxygen over the temperature range of 450-750 °C was studied. The oxidation products were identified by X-ray diffraction (XRD). Characterization of the specimens after oxidation was conducted using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The oxidation kinetics at different temperature was studied, according to parabolic and logarithmic laws. The mechanism and activation energy of oxidation were discussed based on the oxidation kinetics. The spallation of the multi-layer scale formed during oxidation was analyzed by growth induced thermal stresses.

AB - The isothermal oxidation behavior of a commercial TiNi shape memory alloy (SMA) in pure oxygen over the temperature range of 450-750 °C was studied. The oxidation products were identified by X-ray diffraction (XRD). Characterization of the specimens after oxidation was conducted using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The oxidation kinetics at different temperature was studied, according to parabolic and logarithmic laws. The mechanism and activation energy of oxidation were discussed based on the oxidation kinetics. The spallation of the multi-layer scale formed during oxidation was analyzed by growth induced thermal stresses.

KW - Activation energy

KW - Diffusion coefficient

KW - Oxidation

KW - Scale spallation

KW - TiNi

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U2 - 10.1016/S0921-5093(03)00287-9

DO - 10.1016/S0921-5093(03)00287-9

M3 - Journal article

SN - 0921-5093

VL - 371

SP - 45

EP - 50

JO - Materials Science and Engineering A

JF - Materials Science and Engineering A

IS - 1-2

ER -

Oxidation behavior of TiNi shape memory alloy at 450-750°C

Abstract

Keywords

ASJC Scopus subject areas

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