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The effect of yttrium addition on oxidation of a sputtered nanocrystalline coating with moderate amount of tantalum in composition
Wang, Jinlong; Chen, Minghui; Yang, Lanlan; Liu, Li; Zhu, Shenglong; Wang, Fuhui; Meng, Guozhe; Chen, MH (reprint author), Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Shenyang 110016, Peoples R China.
2016-03-15
发表期刊APPLIED SURFACE SCIENCE
ISSN0169-4332
卷号366页码:245-253
摘要The effect of yttrium addition on isothermal oxidation at 1050 degrees C of a sputtered nanocrystalline coating with moderate amount of tantalum in composition was investigated. Results indicate that yttrium addition delays transformation of metastable theta-Al2O3 to equilibrium alpha-Al2O3 grown on the nanocrystalline coatings. It prevents scale rumpling and promotes the formation of oxide pegs at interface between the oxide scale and the underlying coating. Besides, yttrium prefers to segregate at grain boundaries of the nanocrystalline coating and retards the outward transportation of tantalum from coating to oxide scale, thus reducing the excessive oxidation of tantalum. (C) 2016 Elsevier B.V. All rights reserved.
部门归属[wang, jinlong ; wang, fuhui ; meng, guozhe] harbin engn univ, minist educ, key lab superlight mat & surface technol, corros & protect lab, harbin 150001, peoples r china ; [wang, jinlong ; chen, minghui ; yang, lanlan ; liu, li ; zhu, shenglong ; wang, fuhui] chinese acad sci, inst met res, lab corros & protect, shenyang 110016, peoples r china
关键词Single-crystal Superalloys Nanocrystalline Coating High-temperature Oxidation Reactive Element Effect
学科领域Chemistry ; Materials Science ; Physics
资助者National Natural Science Foundation of China [51471177]; Youth Innovation Promotion Association CAS; National Basic Research Program of China [2014CB643303]; National Key Basic Research Program of China [2012CB625100]
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/75934
专题中国科学院金属研究所
通讯作者Chen, MH (reprint author), Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Shenyang 110016, Peoples R China.
推荐引用方式
GB/T 7714
Wang, Jinlong,Chen, Minghui,Yang, Lanlan,et al. The effect of yttrium addition on oxidation of a sputtered nanocrystalline coating with moderate amount of tantalum in composition[J]. APPLIED SURFACE SCIENCE,2016,366:245-253.
APA Wang, Jinlong.,Chen, Minghui.,Yang, Lanlan.,Liu, Li.,Zhu, Shenglong.,...&Chen, MH .(2016).The effect of yttrium addition on oxidation of a sputtered nanocrystalline coating with moderate amount of tantalum in composition.APPLIED SURFACE SCIENCE,366,245-253.
MLA Wang, Jinlong,et al."The effect of yttrium addition on oxidation of a sputtered nanocrystalline coating with moderate amount of tantalum in composition".APPLIED SURFACE SCIENCE 366(2016):245-253.
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