Effect of Al and Co content on isothermal oxidation behavior of K4169 superalloy at 950°C

	Effect of Al and Co content on isothermal oxidation behavior of K4169 superalloy at 950°C
	Li, Ya-Min; Liu, Hong-Jun; Liu, Jie; Hao, Yuan
	2011-06-01
发表期刊	Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
ISSN	10096264
卷号	32 期号:6 页码:114-118
摘要	Effect of Al and Co content on oxidation behavior of K4169 superalloy at 950°Cwas investigated by means of TGA, XRD and SEM (EDS). The results show that the oxidation kinetics obey parabolic law and the oxidation particle sizes of the alloy with different Al and Co content are smaller than that of the alloy with primary composition. With the increasing of Al content the oxidation resistance of the alloy is improved, however, with the increasing of Co content the oxidation resistance of the alloy is weakened. When the content of Al is 1.45 wt% and Co is 0.3 wt%, the oxidation resistance of the alloy is the best, but the alloy with primary composition is the worst. The oxide scales of the alloy with different Al and Co content are all composed of loose top layer consisted of Cr2O3, TiO2 and a bit of NiO and NiCr2O4, compact intermediate layer of Cr2O3, as well as discrete internal oxide layer of Al 2O3.
关键词	Aluminum Oxidation resistance Scale (deposits) Superalloys Titanium dioxide Al content Co content Intermediate layers Isothermal oxidations K4169 superalloy Oxidation behaviors Oxidation kinetics Oxide layer Oxide scale Parabolic law TiO XRD
收录类别	EI
语种	中文
出版者	Editorial Office of Transactions of Materials, 18 Xueqing Road, Beijing, 100083, China
EI入藏号	20112814143890
EI主题词	Oxidation
EI分类号	531 Metallurgy and Metallography - 539.1 Metals Corrosion - 541.1 Aluminum - 802.2 Chemical Reactions - 804.2 Inorganic Compounds
来源库	Compendex
分类代码	531 Metallurgy and Metallography - 539.1 Metals Corrosion - 541.1 Aluminum - 802.2 Chemical Reactions - 804.2 Inorganic Compounds
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/111222
专题	材料科学与工程学院国际教育学院
作者单位	Key Laboratory of Non-ferrous Metal Alloys and Processing, Lanzhou University of Technology, Lanzhou 730050, China
第一作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Li, Ya-Min,Liu, Hong-Jun,Liu, Jie,et al. Effect of Al and Co content on isothermal oxidation behavior of K4169 superalloy at 950°C[J]. Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment,2011,32(6):114-118.
APA	Li, Ya-Min,Liu, Hong-Jun,Liu, Jie,&Hao, Yuan.(2011).Effect of Al and Co content on isothermal oxidation behavior of K4169 superalloy at 950°C.Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment,32(6),114-118.
MLA	Li, Ya-Min,et al."Effect of Al and Co content on isothermal oxidation behavior of K4169 superalloy at 950°C".Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment 32.6(2011):114-118.