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
通讯作者	TANIGUCHI, S()
	1993-06-01
发表期刊	OXIDATION OF METALS
ISSN	0030-770X
卷号	39 期号:5-6 页码:457-473
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.
关键词	HIGH TEMPERATURE OXIDATION BEHAVIOR TIAL CO-CR-AL COATING ALUMINA SCALE PORE FORMATION
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:A1993LX41700007
出版者	PLENUM PUBL CORP
引用统计	被引频次：30[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/126405
专题	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.