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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
Source PublicationAPPLIED SURFACE SCIENCE
ISSN0169-4332
Volume366Pages:245-253
AbstractThe 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.
description.department[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
KeywordSingle-crystal Superalloys Nanocrystalline Coating High-temperature Oxidation Reactive Element Effect
Subject AreaChemistry ; Materials Science ; Physics
Funding OrganizationNational 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]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75934
Collection中国科学院金属研究所
Corresponding AuthorChen, MH (reprint author), Chinese Acad Sci, Inst Met Res, Lab Corros & Protect, Shenyang 110016, Peoples R China.
Recommended Citation
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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