Influence of cyclic frequency on oxidation behavior of K38 superalloy with yttrium additions at 1 273 K

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	Influence of cyclic frequency on oxidation behavior of K38 superalloy with yttrium additions at 1 273 K
	P. Yu; W. Wang; F. H. Wang
	2011
发表期刊	Journal of Rare Earths
ISSN	1002-0721
卷号	29 期号:2 页码:119-123
摘要	Cyclic oxidation test is a fundamental method to assess lifetime of materials in high temperature environment. Cycle length or cyclic frequency is one important variable in cyclic oxidation testing. In present work, cyclic oxidation tests were performed on cast K38 alloys with 0 wt.%, 0.1 wt.%, and 0.5 wt.% yttrium additions at 1 273 K respectively. Two cyclic frequencies were used to investigate the influence of cycle length (1 h vs. 20 h) on the high temperature oxidation behavior of superalloy. The results showed that the degradation of cast K38 alloy critically was dependent on the cyclic frequency. The yttrium addition was beneficial to reducing scale-growth rate, improving the scale adhesion and stress releasing, thereby increased the spallation resistance. It could be drawn that the effect of cyclic frequency was highly dependent on the scale adherence to the substrate.
部门归属	[yu ping] shenyang univ chem technol, shenyang 110142, peoples r china. [yu ping; wang wen; wang fuhui] chinese acad sci, inst met res, state key lab corros & protect, shenyang 110016, peoples r china.;yu, p (reprint author), shenyang univ chem technol, shenyang 110142, peoples r china;yupingteacher@sina.com.cn
关键词	K38 Superalloy Yttrium Cyclic Oxidation Cyclic Frequency Rare Earths High-temperature Oxidation Adhesion Segregation Scales Spallation Chromia Alloys Growth Oxides
URL	查看原文
WOS记录号	WOS:000288424800006
引用统计	被引频次：9[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/321006/30854
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	P. Yu,W. Wang,F. H. Wang. Influence of cyclic frequency on oxidation behavior of K38 superalloy with yttrium additions at 1 273 K[J]. Journal of Rare Earths,2011,29(2):119-123.
APA	P. Yu,W. Wang,&F. H. Wang.(2011).Influence of cyclic frequency on oxidation behavior of K38 superalloy with yttrium additions at 1 273 K.Journal of Rare Earths,29(2),119-123.
MLA	P. Yu,et al."Influence of cyclic frequency on oxidation behavior of K38 superalloy with yttrium additions at 1 273 K".Journal of Rare Earths 29.2(2011):119-123.