Surface characterization and corrosion resistance of Ti-Al-Zr alloy by niobium ion implantation

Y. Z. Liu; X. T. Zu; S. Y. Qiu; L. Wang; W. G. Ma; C. F. Wei

doi:10.1016/j.nimb.2005.10.025

Surface characterization and corrosion resistance of Ti-Al-Zr alloy by niobium ion implantation

Y. Z. Liu, X. T. Zu^*, S. Y. Qiu, L. Wang, W. G. Ma, C. F. Wei

^*Corresponding author for this work

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

10 Citations (Scopus)

Abstract

The aim of this paper is to study the effect of niobium ion implantation on corrosion resistance and phase formation on the implanted surfaces of Ti-Al-Zr alloy. Niobium ion was implanted into Ti-Al-Zr alloy at energy of 60 keV using a 150 keV accelerator at different fluences ranging from 5 × 10 ¹⁶ to 4 × 10¹⁷ ions/cm², respectively. Electrochemical studies have been conducted in a simulated reactor environment with pH = 10 in order to determine the optimum fluence that can give good corrosion resistance. X-ray photoemission spectroscopy (XPS) and glancing angle X-ray diffraction (GAXRD) were employed to examine the phase formation of niobium ion implanted samples. Niobium implantation into the alloy resulted in precipitation of NbTi₄ and Nb precipitates. Microhardness measurements revealed an increase after niobium implantation into the samples. It was found that niobium implantation increases the corrosion resistance. Nature of the surface and reason for the variation and improvement in corrosion resistance are discussed in detail.

Original language	English
Pages (from-to)	397-402
Number of pages	6
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	244
Issue number	2
DOIs	https://doi.org/10.1016/j.nimb.2005.10.025
Publication status	Published - Mar 2006
Externally published	Yes

Keywords

Corrosion
Niobium ion implantation
Phase formation
Ti-Al-Zr alloy

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10.1016/j.nimb.2005.10.025

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title = "Surface characterization and corrosion resistance of Ti-Al-Zr alloy by niobium ion implantation",

abstract = "The aim of this paper is to study the effect of niobium ion implantation on corrosion resistance and phase formation on the implanted surfaces of Ti-Al-Zr alloy. Niobium ion was implanted into Ti-Al-Zr alloy at energy of 60 keV using a 150 keV accelerator at different fluences ranging from 5 × 10 16 to 4 × 1017 ions/cm2, respectively. Electrochemical studies have been conducted in a simulated reactor environment with pH = 10 in order to determine the optimum fluence that can give good corrosion resistance. X-ray photoemission spectroscopy (XPS) and glancing angle X-ray diffraction (GAXRD) were employed to examine the phase formation of niobium ion implanted samples. Niobium implantation into the alloy resulted in precipitation of NbTi4 and Nb precipitates. Microhardness measurements revealed an increase after niobium implantation into the samples. It was found that niobium implantation increases the corrosion resistance. Nature of the surface and reason for the variation and improvement in corrosion resistance are discussed in detail.",

keywords = "Corrosion, Niobium ion implantation, Phase formation, Ti-Al-Zr alloy",

author = "Liu, {Y. Z.} and Zu, {X. T.} and Qiu, {S. Y.} and L. Wang and Ma, {W. G.} and Wei, {C. F.}",

year = "2006",

month = mar,

doi = "10.1016/j.nimb.2005.10.025",

language = "English",

volume = "244",

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T1 - Surface characterization and corrosion resistance of Ti-Al-Zr alloy by niobium ion implantation

AU - Liu, Y. Z.

AU - Zu, X. T.

AU - Qiu, S. Y.

AU - Wang, L.

AU - Ma, W. G.

AU - Wei, C. F.

PY - 2006/3

Y1 - 2006/3

N2 - The aim of this paper is to study the effect of niobium ion implantation on corrosion resistance and phase formation on the implanted surfaces of Ti-Al-Zr alloy. Niobium ion was implanted into Ti-Al-Zr alloy at energy of 60 keV using a 150 keV accelerator at different fluences ranging from 5 × 10 16 to 4 × 1017 ions/cm2, respectively. Electrochemical studies have been conducted in a simulated reactor environment with pH = 10 in order to determine the optimum fluence that can give good corrosion resistance. X-ray photoemission spectroscopy (XPS) and glancing angle X-ray diffraction (GAXRD) were employed to examine the phase formation of niobium ion implanted samples. Niobium implantation into the alloy resulted in precipitation of NbTi4 and Nb precipitates. Microhardness measurements revealed an increase after niobium implantation into the samples. It was found that niobium implantation increases the corrosion resistance. Nature of the surface and reason for the variation and improvement in corrosion resistance are discussed in detail.

AB - The aim of this paper is to study the effect of niobium ion implantation on corrosion resistance and phase formation on the implanted surfaces of Ti-Al-Zr alloy. Niobium ion was implanted into Ti-Al-Zr alloy at energy of 60 keV using a 150 keV accelerator at different fluences ranging from 5 × 10 16 to 4 × 1017 ions/cm2, respectively. Electrochemical studies have been conducted in a simulated reactor environment with pH = 10 in order to determine the optimum fluence that can give good corrosion resistance. X-ray photoemission spectroscopy (XPS) and glancing angle X-ray diffraction (GAXRD) were employed to examine the phase formation of niobium ion implanted samples. Niobium implantation into the alloy resulted in precipitation of NbTi4 and Nb precipitates. Microhardness measurements revealed an increase after niobium implantation into the samples. It was found that niobium implantation increases the corrosion resistance. Nature of the surface and reason for the variation and improvement in corrosion resistance are discussed in detail.

KW - Corrosion

KW - Niobium ion implantation

KW - Phase formation

KW - Ti-Al-Zr alloy

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DO - 10.1016/j.nimb.2005.10.025

M3 - Article

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SN - 0168-583X

VL - 244

SP - 397

EP - 402

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

IS - 2

ER -

Surface characterization and corrosion resistance of Ti-Al-Zr alloy by niobium ion implantation

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Keywords

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