OXIDATION RESISTANCE OF TIAL IMPROVED BY COCRAL AND COCRALY COATING

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	OXIDATION RESISTANCE OF TIAL IMPROVED BY COCRAL AND COCRALY COATING
	TANIGUCHI, S; ASANUMA, N; SHIBATA, T; WANG, FH; LOU, HY; WU, WT
通讯作者	TANIGUCHI, S()
	1993-07-01
发表期刊	JOURNAL OF THE JAPAN INSTITUTE OF METALS
ISSN	0021-4876
卷号	57 期号:7 页码:781-789
摘要	Oxidation resistance of TiAl coupons coated with Co-30Cr-4Al and Co-30Cr-4Al-0.2Y (mass%) coatings has been assessed by isothermal oxidation test in a temperature range 1100 to 1400 K and by cyclic oxidation test at 1200 K. The coating, consisting of very fine grains, was prepared by magnetron sputtering with resulting thicknesses of 30-40 mum. Both the coatings are very effective to suppress the oxidation below 1300 K. This effect is attributable to the formation of alpha-alumina scales. However, after long oxidation periods, the oxidation manner changes from parabolic to accelerated oxidation. This acceleration is explained in terms of local growth of rutile on the scale. Relatively large voids are formed at the scale/coating interface, within the coating, and the coating/substrate interface. The addition of Y to the coating results in the flat scales with no voids at the scale/coating interface, though the oxidation rate slightly increases and the recrystallization of the coating is delayed.
关键词	COCRAL COCRALY COATING TIAL HIGH TEMPERATURE OXIDATION RESISTANCE AL2O3 SCALE
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:A1993LP50900009
出版者	JAPAN INST METALS
引用统计	被引频次：17[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/321006/126550
专题	中国科学院金属研究所
通讯作者	TANIGUCHI, S
作者单位	CHINESE ACAD SCI, INST CORROS & PROTECT MET, CORROS SCI LAB, SHENYANG, PEOPLES R CHINA
推荐引用方式 GB/T 7714	TANIGUCHI, S,ASANUMA, N,SHIBATA, T,et al. OXIDATION RESISTANCE OF TIAL IMPROVED BY COCRAL AND COCRALY COATING[J]. JOURNAL OF THE JAPAN INSTITUTE OF METALS,1993,57(7):781-789.
APA	TANIGUCHI, S,ASANUMA, N,SHIBATA, T,WANG, FH,LOU, HY,&WU, WT.(1993).OXIDATION RESISTANCE OF TIAL IMPROVED BY COCRAL AND COCRALY COATING.JOURNAL OF THE JAPAN INSTITUTE OF METALS,57(7),781-789.
MLA	TANIGUCHI, S,et al."OXIDATION RESISTANCE OF TIAL IMPROVED BY COCRAL AND COCRALY COATING".JOURNAL OF THE JAPAN INSTITUTE OF METALS 57.7(1993):781-789.