A Study of Effect of Nitrogen Implantation on  Corrosion Properties of Ti-Al-Zr Alloy

LIU Yan-zhang; QIU Shao-yu; ZU Xiao-tao; WANG Li; HUANG Xin-quan

doi:10.11804/NuclPhysRev.23.02.202

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Volume 23 Issue 2

Jun. 2006

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Article Navigation > Nuclear Physics Review > 2006 > 23(2): 202-206

LIU Yan-zhang, QIU Shao-yu, ZU Xiao-tao, WANG Li, HUANG Xin-quan. A Study of Effect of Nitrogen Implantation on Corrosion Properties of Ti-Al-Zr Alloy[J]. Nuclear Physics Review, 2006, 23(2): 202-206. doi: 10.11804/NuclPhysRev.23.02.202

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LIU Yan-zhang, QIU Shao-yu, ZU Xiao-tao, WANG Li, HUANG Xin-quan. A Study of Effect of Nitrogen Implantation on Corrosion Properties of Ti-Al-Zr Alloy[J]. Nuclear Physics Review, 2006, 23(2): 202-206. doi: 10.11804/NuclPhysRev.23.02.202

A Study of Effect of Nitrogen Implantation on Corrosion Properties of Ti-Al-Zr Alloy

doi: 10.11804/NuclPhysRev.23.02.202

1 Department of Applied Physics, University of Electronic Science and Technology of China, Chengdu 610054, China ; 2 National Key Laboratory for Nuclear Fuel and Materials, Chengdu 610041, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2006-06-20

Abstract

In the present investigation, fully annealed Ti-Al-Zr plates were implanted with different nitrogen fluences. The corrosion resistance was examined by the electrochemical methods in a solution with pH value of 10 at room temperature in order to determine the optimum fluenee that can give good corrosion resistance in a simulated nuclear reactor condition. The results show ε-Ti2N phase formed initially and then transformed into σ-TIN with increasing of nitrogen fluences, which was confirmed by the results of X-ray photoelectron spectroscopy （XPS）. In addition, it can be found the increase of the corrosion resistance depends on the nitrogen fluence employed and the maximum improvement of the corrosion resistance was observed with a fluence of 8 × 10^16 N^＋ ion/cm^2. The mechanism of the corrosion resistance is attributed to defect accumulation, formatio on of amorphous phase and nanocrystallization in the implanted layer.
- Ti-Al-Zr,
- nitrogen implantation,
- phase formation,
- corrosion resistance
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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A Study of Effect of Nitrogen Implantation on Corrosion Properties of Ti-Al-Zr Alloy

doi: 10.11804/NuclPhysRev.23.02.202

1 Department of Applied Physics, University of Electronic Science and Technology of China, Chengdu 610054, China ; 2 National Key Laboratory for Nuclear Fuel and Materials, Chengdu 610041, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2006-06-20

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Abstract: In the present investigation, fully annealed Ti-Al-Zr plates were implanted with different nitrogen fluences. The corrosion resistance was examined by the electrochemical methods in a solution with pH value of 10 at room temperature in order to determine the optimum fluenee that can give good corrosion resistance in a simulated nuclear reactor condition. The results show ε-Ti2N phase formed initially and then transformed into σ-TIN with increasing of nitrogen fluences, which was confirmed by the results of X-ray photoelectron spectroscopy （XPS）. In addition, it can be found the increase of the corrosion resistance depends on the nitrogen fluence employed and the maximum improvement of the corrosion resistance was observed with a fluence of 8 × 10^16 N^＋ ion/cm^2. The mechanism of the corrosion resistance is attributed to defect accumulation, formatio on of amorphous phase and nanocrystallization in the implanted layer.

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