Effect of Surface Roughness on the Oxidation Behavior of a Directionally Solidified Ni-Based Superalloy at 1,100 degrees C

IMR OpenIR

	Effect of Surface Roughness on the Oxidation Behavior of a Directionally Solidified Ni-Based Superalloy at 1,100 degrees C
	Wang, Li; Jiang, Wei-Guo; Li, Xiang-Wei; Dong, Jia-Sheng; Zheng, Wei; Feng, Hui; Lou, Lang-Hong; wangli@imr.ac.cn
	2015
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
卷号	28 期号:3 页码:381-385
摘要	The effect of surface roughness on the oxidation behavior of a directionally solidified Ni-based superalloy was investigated by surface mapping microscope, scanning electron microscope and X-ray diffraction. It was found that specimens with surface roughness of 0.05 mu m exhibit the best oxidation resistance, while specimens with surface roughness of 0.14 mu m behave worse than specimens with surface roughness of 0.83 mu m. The specimens with surface roughness of 0.05 mu m have the best oxidation resistance, which is mainly due to the smallest surface area exposed in air and thinnest work-hardening layer. The Al2O3 layer alleviates the oxidation process of the specimens with surface roughness of 0.83 mu m, and this is the possible reason for the better oxidation resistance of samples with surface roughness of 0.83 mu m than samples with surface roughness of 0.14 mu m.
部门归属	[wang, li ; jiang, wei-guo ; li, xiang-wei ; dong, jia-sheng ; zheng, wei ; feng, hui ; lou, lang-hong] chinese acad sci, inst met res, superalloys div, shenyang 110016, peoples r china
关键词	Superalloy Oxidation Surface Roughness Surface Area Work Hardening
资助者	National Natural Science Foundation of China [51201164]; National High Technology Research and Development Program of China [2012AA03A511]
收录类别	sci
语种	英语
WOS记录号	WOS:000358977700015
引用统计	被引频次：20[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/321006/74772
专题	中国科学院金属研究所
通讯作者	wangli@imr.ac.cn
推荐引用方式 GB/T 7714	Wang, Li,Jiang, Wei-Guo,Li, Xiang-Wei,et al. Effect of Surface Roughness on the Oxidation Behavior of a Directionally Solidified Ni-Based Superalloy at 1,100 degrees C[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2015,28(3):381-385.
APA	Wang, Li.,Jiang, Wei-Guo.,Li, Xiang-Wei.,Dong, Jia-Sheng.,Zheng, Wei.,...&wangli@imr.ac.cn.(2015).Effect of Surface Roughness on the Oxidation Behavior of a Directionally Solidified Ni-Based Superalloy at 1,100 degrees C.ACTA METALLURGICA SINICA-ENGLISH LETTERS,28(3),381-385.
MLA	Wang, Li,et al."Effect of Surface Roughness on the Oxidation Behavior of a Directionally Solidified Ni-Based Superalloy at 1,100 degrees C".ACTA METALLURGICA SINICA-ENGLISH LETTERS 28.3(2015):381-385.