OXIDATION BEHAVIOR OF TIAL COATED WITH A FINE-GRAIN CO-30CR-4AL FILM

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	OXIDATION BEHAVIOR OF TIAL COATED WITH A FINE-GRAIN CO-30CR-4AL FILM
	TANIGUCHI, S ; SHIBATA, T ; ASANUMA, N ; LOU, HY ; WANG, FH ; WU, WT
刊名	OXIDATION OF METALS
	1993-06-01
卷号	39 期号:5-6 页码:457-473
关键词	HIGH TEMPERATURE OXIDATION BEHAVIOR TIAL CO-CR-AL COATING ALUMINA SCALE PORE FORMATION
ISSN号	0030-770X
通讯作者	TANIGUCHI, S()
英文摘要	The oxidation behavior of TiAl coupons coated with a fine-grain Co-30Cr-4Al (mass %) film of about 30-mum thickness has been studied at 1100-1400 K in a flow of purified oxygen at atmospheric pressure for up to 500 ks. Three oxidation stages were recognized: initial transient, parabolic, and accelerated stages. However, at 1100 K a parabolic stage continues for more than 800 ks. The activation energy for parabolic oxidation agrees with reported values for the oxidation of alumina-former alloys, although the mass gains during the parabolic stages are relatively small at 1200 and 1300 K Micropores developed mainly at the scale/coating and coating/substrate interfaces as oxidation proceeded This is attributable to recrystallization of the coating during oxidation and a Kirkendall effect due to preferential diffusion of Co into the substrate. The accelerated oxidation can be explained in terms of the formation of rutile mounds on the scale.
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	PLENUM PUBL CORP
WOS记录号	WOS:A1993LX41700007
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/126404]
专题	金属研究所_中国科学院金属研究所
通讯作者	TANIGUCHI, S
作者单位	1.CHINESE ACAD SCI,INST CORROS & PROTECT MET,CORROS SCI LAB,SHENYANG 110015,PEOPLES R CHINA 2.OSAKA UNIV,GRAD SCH ENGN,SUITA,OSAKA 565,JAPAN
推荐引用方式 GB/T 7714	TANIGUCHI, S,SHIBATA, T,ASANUMA, N,et al. OXIDATION BEHAVIOR OF TIAL COATED WITH A FINE-GRAIN CO-30CR-4AL FILM[J]. OXIDATION OF METALS,1993,39(5-6):457-473.
APA	TANIGUCHI, S,SHIBATA, T,ASANUMA, N,LOU, HY,WANG, FH,&WU, WT.(1993).OXIDATION BEHAVIOR OF TIAL COATED WITH A FINE-GRAIN CO-30CR-4AL FILM.OXIDATION OF METALS,39(5-6),457-473.
MLA	TANIGUCHI, S,et al."OXIDATION BEHAVIOR OF TIAL COATED WITH A FINE-GRAIN CO-30CR-4AL FILM".OXIDATION OF METALS 39.5-6(1993):457-473.