Acta Metall Sin  1994, Vol. 30 Issue (16): 169-174    DOI:

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INFLUENCE OF Ce IMPLANTATION ON OXIDATION BEHAVIOUR OF Ni20Cr ALLOY

LI Meishuan; PENG Hiao;MA Hinqing;LI Tiefan(Corrosion Science Laboratory;Institute of Corrosion and Protection of Metals;Chinese Academy of Sciences)(Manuscript received 10 May;1993)

LI Meishuan; PENG Hiao;MA Hinqing;LI Tiefan(Corrosion Science Laboratory;Institute of Corrosion and Protection of Metals;Chinese Academy of Sciences)(Manuscript received 10 May;1993). INFLUENCE OF Ce IMPLANTATION ON OXIDATION BEHAVIOUR OF Ni20Cr ALLOY. Acta Metall Sin, 1994, 30(16): 169-174.

Abstract References Related Articles Recommended Metrics Download:  PDF(413KB)  Export:  BibTeX | EndNote (RIS)       Abstract  Implantation of 2×1016,5×1016,1×1017Ce+/cm2 into Ni20Cr alloy can significantly decrease the oxidation rate at 1000 and 1100℃,and improve the adhesion of oxide scales.The changes of binding energy of alloy in elements in alloy surface after Ce implanting and in oxide scale formed at 1100℃ were measured using ion microperobe mass analyzer.The decrement of binding energy of Cr+on the alloy surface accelerate rapidly the formation of protective Cr2O3,however these of Cr+and Ni+ in the oxide scale increase,the outward diffusion of Cr3+and Ni2+through the scale are delayed.This seems to be the main reason for Ce implantation to decrease the oxidation rate of Ni20Cr at 1100℃.The oxide scales of Ce-implanted Ni20Cr alloy are dense,intact and well adhesive with the alloy.The oxide scales spall partially after 270 time during the cyclic oxidation at 1000℃,but the effect of Ce on the improvement of the oxide scale adherence is still obvious.Correspondent:LI Meishuan,assistant professor,(Institute of Corrosion and Protection of Metals,Chinese Academy of Sciences,Shenyang 110015) Key words:  Ni20Cr alloy      oxidation      Ce      implantation      binding energy      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1994/V30/I16/169 1HindamH,WhittleDP．OxidMet,1982;18:2452MoonDP．MaterSciTechnol,1989;5:7543StringerJ．MaterSciEng,1989,A120:1294StootFH,PunniJS,WoodGC,DearnaleyG．IonImplantationIntoMetals．PergamonPress,1982:2455PrzybylskiK,Garratt-ReedAJ,YurekGJ．JElectrochemSoc,1988;135:5096CotellCM,YurekGJ,HusseyRJ,MitchchellDF,GrahamMJ．OxidMet,1990;34:173,2017万晓景,杨柯,曹名洲．金属学报,1986;22:A1898陈廉,刘树望,邹军军,邵玉霞,李裕光．质谱学报,1988:9:329GaoPeiyu．8thInternationalCongressonMetallicCorrosion,Vol．1,Mainz,Germany,InternationalCorrosionCouncil,EuropeanFederationofCorrosion,DechemaDeutscheGesellsehaftfurChemischesApparatewesene．V．Frankfurt//Main,1981:40610AbderrazikGB,MoulinG,HuntzAM,OxidMet,1990;33:191p [1] WANG Lei, LIU Mengya, LIU Yang, SONG Xiu, MENG Fanqiang. 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