Mechanical properties and oxidation characteristics of TiNiAl(Nb) intermetallics

H. B. Xu; L. J. Meng; J. Xu; Y. Li; X. Q. Zhao

doi:10.1016/j.intermet.2006.10.005

Mechanical properties and oxidation characteristics of TiNiAl(Nb) intermetallics

H. B. Xu^*
, L. J. Meng
, J. Xu
, Y. Li
, X. Q. Zhao

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University

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

42 Scopus citations

Abstract

The structural evolution, mechanical properties and the oxidation characteristics of Ti₅₀Ni_50-xAl_x alloys were investigated. The influence of additive Nb on the microstructure, mechanical properties as well as the high temperature oxidation resistance was examined. It is found that the substitution of Al for Ni can remarkably reinforce the TiNi-based intermetallics by precipitation of (Ti,Al)₂Ni phase and by solid-solution strengthening effects. It is also found that the addition of Nb has beneficial influence on the mechanical properties of TiNiAl intermetallics, and that the oxidation resistance of TiNiAl(Nb) alloys can be effectively improved by the Nb addition. The effect of Nb on the high temperature oxidation behavior of TiNiAl(Nb) alloys has been discussed.

Original language	English
Pages (from-to)	778-782
Number of pages	5
Journal	Intermetallics
Volume	15
Issue number	5-6
DOIs	https://doi.org/10.1016/j.intermet.2006.10.005
State	Published - May 2007

Keywords

A. Intermetallics miscellaneous
B. Mechanical properties at high temperatures
B. Oxidation
C. Isothermal forging
D. Microstructure

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10.1016/j.intermet.2006.10.005

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@article{3c0097d6212d48d090bc085a08eda725,

title = "Mechanical properties and oxidation characteristics of TiNiAl(Nb) intermetallics",

abstract = "The structural evolution, mechanical properties and the oxidation characteristics of Ti50Ni50-xAlx alloys were investigated. The influence of additive Nb on the microstructure, mechanical properties as well as the high temperature oxidation resistance was examined. It is found that the substitution of Al for Ni can remarkably reinforce the TiNi-based intermetallics by precipitation of (Ti,Al)2Ni phase and by solid-solution strengthening effects. It is also found that the addition of Nb has beneficial influence on the mechanical properties of TiNiAl intermetallics, and that the oxidation resistance of TiNiAl(Nb) alloys can be effectively improved by the Nb addition. The effect of Nb on the high temperature oxidation behavior of TiNiAl(Nb) alloys has been discussed.",

keywords = "A. Intermetallics miscellaneous, B. Mechanical properties at high temperatures, B. Oxidation, C. Isothermal forging, D. Microstructure",

author = "Xu, \{H. B.\} and Meng, \{L. J.\} and J. Xu and Y. Li and Zhao, \{X. Q.\}",

year = "2007",

month = may,

doi = "10.1016/j.intermet.2006.10.005",

language = "英语",

volume = "15",

pages = "778--782",

journal = "Intermetallics",

issn = "0966-9795",

publisher = "Elsevier Ltd",

number = "5-6",

}

TY - JOUR

T1 - Mechanical properties and oxidation characteristics of TiNiAl(Nb) intermetallics

AU - Xu, H. B.

AU - Meng, L. J.

AU - Xu, J.

AU - Li, Y.

AU - Zhao, X. Q.

PY - 2007/5

Y1 - 2007/5

N2 - The structural evolution, mechanical properties and the oxidation characteristics of Ti50Ni50-xAlx alloys were investigated. The influence of additive Nb on the microstructure, mechanical properties as well as the high temperature oxidation resistance was examined. It is found that the substitution of Al for Ni can remarkably reinforce the TiNi-based intermetallics by precipitation of (Ti,Al)2Ni phase and by solid-solution strengthening effects. It is also found that the addition of Nb has beneficial influence on the mechanical properties of TiNiAl intermetallics, and that the oxidation resistance of TiNiAl(Nb) alloys can be effectively improved by the Nb addition. The effect of Nb on the high temperature oxidation behavior of TiNiAl(Nb) alloys has been discussed.

AB - The structural evolution, mechanical properties and the oxidation characteristics of Ti50Ni50-xAlx alloys were investigated. The influence of additive Nb on the microstructure, mechanical properties as well as the high temperature oxidation resistance was examined. It is found that the substitution of Al for Ni can remarkably reinforce the TiNi-based intermetallics by precipitation of (Ti,Al)2Ni phase and by solid-solution strengthening effects. It is also found that the addition of Nb has beneficial influence on the mechanical properties of TiNiAl intermetallics, and that the oxidation resistance of TiNiAl(Nb) alloys can be effectively improved by the Nb addition. The effect of Nb on the high temperature oxidation behavior of TiNiAl(Nb) alloys has been discussed.

KW - A. Intermetallics miscellaneous

KW - B. Mechanical properties at high temperatures

KW - B. Oxidation

KW - C. Isothermal forging

KW - D. Microstructure

UR - https://www.scopus.com/pages/publications/34247128142

U2 - 10.1016/j.intermet.2006.10.005

DO - 10.1016/j.intermet.2006.10.005

M3 - 文章

AN - SCOPUS:34247128142

SN - 0966-9795

VL - 15

SP - 778

EP - 782

JO - Intermetallics

JF - Intermetallics

IS - 5-6

ER -

Mechanical properties and oxidation characteristics of TiNiAl(Nb) intermetallics

Abstract

Keywords

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