LOCALIZED CORROSION BEHAVIOR OF CHROMIUM-IMPLANTED AND BORON-IMPLANTED NI3AL

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	LOCALIZED CORROSION BEHAVIOR OF CHROMIUM-IMPLANTED AND BORON-IMPLANTED NI3AL
	C. Mei; S. Patu; C. X. Shi
	1992
发表期刊	Surface & Coatings Technology
ISSN	0257-8972
卷号	53 期号:2 页码:115-119
摘要	The potentiodynamic polarization behaviour of Ni3Al implanted with different doses of Cr+, B+ and Cr+-B+ combined in solutions of 0.25 M NaCl+0.25 M Na2SO4 (pH 6) and 1 M NaCl (pH 1) respectively were studied. Both Cr+- and B+-implanted samples have better pitting corrosion resistance than an unimplanted sample. Smaller pits and lower pit density are observed on implanted samples. The most obvious effect is that the corrosion current density decreases with increasing dose, by between one and three orders of magnitude. It was found that a good passive film formed on the Cr+-implanted sample, which improves the pitting corrosion resistance of Ni3Al. Boron is more difficult to dissolve than Ni3Al. There is a nearly insulating film on the pitting surface, which diminishes the further corrosion of the inner alloy. The combined-implanted sample shows a better performance than those implanted with only one element.
部门归属	mei, c (reprint author), acad sinica,inst met res,fatigue & fracture mat lab,shenyang 110015,peoples r china
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/39273
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	C. Mei,S. Patu,C. X. Shi. LOCALIZED CORROSION BEHAVIOR OF CHROMIUM-IMPLANTED AND BORON-IMPLANTED NI3AL[J]. Surface & Coatings Technology,1992,53(2):115-119.
APA	C. Mei,S. Patu,&C. X. Shi.(1992).LOCALIZED CORROSION BEHAVIOR OF CHROMIUM-IMPLANTED AND BORON-IMPLANTED NI3AL.Surface & Coatings Technology,53(2),115-119.
MLA	C. Mei,et al."LOCALIZED CORROSION BEHAVIOR OF CHROMIUM-IMPLANTED AND BORON-IMPLANTED NI3AL".Surface & Coatings Technology 53.2(1992):115-119.