Phase formation in nitrogen ion implanted Ti-Al-Zr alloy and modification of corrosion property

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	Phase formation in nitrogen ion implanted Ti-Al-Zr alloy and modification of corrosion property
	Y. Z. Liu; X. T. Zu; J. Cao; L. Wang; C. Li; X. Q. Huang
	2005
发表期刊	Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms
ISSN	0168-583X
卷号	237 期号:3-4 页码:543-549
摘要	in the present investigation, surface modification of Ti-Al-Zr alloy with nitrogen ions is considered as a method to improve its performance with respect to corrosion. Nitrogen ions were implanted on Ti-Al-Zr alloy at an energy of 65 keV at different doses between 1 x 10(16) and 1 x 10(17) ions/cm(2). The valence states of nitrogen, titanium and carbon on the sample surfaces were analyzed by X-ray photoemission spectroscopy (XPS). Glancing angle X-ray diffraction (GAXRD) was employed on the as-implanted and annealed specimens to understand phase formation with increasing doses and annealing temperatures. The implanted samples were subjected to electrochemical study in a solution with pH = 10 in order to determine the optimum dose that can give good corrosion resistance in a simulated nuclear reactor condition. The passive current density and area of the repassivation loop were found to decrease as the doses increased. Nitrogen ions implantation enhanced the passivation and reduced the corrosion kinetics of the alloy surface with increasing tendency for repassivation. The corrosion resistance of as-implanted and annealed samples was better than that of as-implanted samples. Nature of the surface and reason for the variation and improvement in corrosion resistance were discussed in detail. (c) 2005 Elsevier B.V. All rights reserved.
部门归属	univ elect sci & technol china, dept appl phys, chengdu 610054, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china. natl key lab nucl fuel & mat, chengdu 610041, peoples r china. xihua univ, dept mat sci & engn, chengdu 610039, peoples r china.;zu, xt (reprint author), univ elect sci & technol china, dept appl phys, chengdu 610054, peoples r china, peoples r china;xiaotaozu@yahoo.com
关键词	Ti-al-zr Alloy Nitrogen Ion implantatIon Phase Formation Corrosion Resistance Titanium-alloy Ti6al4v Wear
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34955
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Z. Liu,X. T. Zu,J. Cao,et al. Phase formation in nitrogen ion implanted Ti-Al-Zr alloy and modification of corrosion property[J]. Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms,2005,237(3-4):543-549.
APA	Y. Z. Liu,X. T. Zu,J. Cao,L. Wang,C. Li,&X. Q. Huang.(2005).Phase formation in nitrogen ion implanted Ti-Al-Zr alloy and modification of corrosion property.Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms,237(3-4),543-549.
MLA	Y. Z. Liu,et al."Phase formation in nitrogen ion implanted Ti-Al-Zr alloy and modification of corrosion property".Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms 237.3-4(2005):543-549.