Influence of Ce ion implantation on oxidation behavior of Ni20Cr alloy

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	Influence of Ce ion implantation on oxidation behavior of Ni20Cr alloy
	M. S. Li; X. Q. Ma; L. O. Xi; T. F. Li
	1997
发表期刊	Transactions of Nonferrous Metals Society of China
ISSN	1003-6326
卷号	7 期号:4 页码:62-66
摘要	The ion implantation of 2 x 10(16), 5 x 10(16) and 1 x 10(17) Ce+/cm(2) to Ni20Cr alloy can significantly decrease its oxidation rate at 1000 degrees C and 1100 degrees C, and improve the adhesion of oxide scales. The influence of Ce ion implantation on the binding energy of alloying elements has been studied by Ion Microprobe Miss Analyzer (IMMA). The binding energy of Cr+ in the implanted layer of the alloy decreases, which promotes the protective Cr2O3 to form quickly during the initial oxidation stage. However the binding energies of Cr+ and Ni+ in the oxide scales increase, and the outward diffusion of Cr3+ and Ni2+ through the oxide scales is suppressed. This result may be related to changing the concentration of defects due to Ce ion implantation. After cyclic oxidation at 1000 degrees C for 270 times, the beneficial effect of Ce on the resistance to oxidation is still obvious.
部门归属	chinese acad sci, inst corros & protect met, state key lab corros & protect, shenyang 110015, peoples r china.
关键词	Oxidation Cerium Ni20cr Alloy Ion implantatIon Grain-boundary Segregation Scales
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WOS记录号	WOS:000071304800014
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/38002
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	M. S. Li,X. Q. Ma,L. O. Xi,et al. Influence of Ce ion implantation on oxidation behavior of Ni20Cr alloy[J]. Transactions of Nonferrous Metals Society of China,1997,7(4):62-66.
APA	M. S. Li,X. Q. Ma,L. O. Xi,&T. F. Li.(1997).Influence of Ce ion implantation on oxidation behavior of Ni20Cr alloy.Transactions of Nonferrous Metals Society of China,7(4),62-66.
MLA	M. S. Li,et al."Influence of Ce ion implantation on oxidation behavior of Ni20Cr alloy".Transactions of Nonferrous Metals Society of China 7.4(1997):62-66.