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jwri36_01_041
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論文情報
タイトル
Bond Coat Oxidation and Hot Corrosion Behavior of Plasma Sprayed YSZ Coating on Ni Superalloy
著者
Saremi, Mohsen
Saremi, Mohsen
Afrasiabi, Abbas
Afrasiabi, Abbas
Kobayashi, Akira
Kobayashi, Akira
キーワード等
Oxidation
Hot corrosion
YSZ
Plasma spray
抄録
Oxidation and hot corrosion are considered as two main destructive factors in thermal barrier coatings (TBCs). The mechanisms of bond coat oxidation and hot corrosion of yttria stabilized zirconia (YSZ) plasma sprayed coatings were evaluated. Oxidation tests were carried out at 1100℃ for 22,42 and 100h. Hot corrosion tests were performed on the coating in molten salt (Na₂SO₄+V₂O₅) at 1050℃ for 40h. Spallation was observed at the bond coat/YSZ interface after 100h oxidation. Micro XRD analysis after the oxidation test revealed the formation of destructive oxides such as NiCr₂O₄, NiCrO₃ and NiCrO₄ within the bond coat of YSZ coating. XRD and SEM studies after hot corrosion demonstrated the formation of monoclinic ZrO₂ and YVO₄ crystals as hot corrosion products, which caused the degradation of YSZ coating.
公開者
大阪大学接合科学研究所
公開者の別表記
Joining and Welding Research Institute, Osaka University
公開者 (ヨミ)
オオサカ ダイガク セツゴウ カガク ケンキュウジョ
掲載誌名
Transactions of JWRI
巻
36
号
1
開始ページ
41
終了ページ
45
刊行年月
2007-07
ISSN
03874508
NCID
AA00867058
URL
http://hdl.handle.net/11094/5187
言語
英語
カテゴリ
紀要論文 Departmental Bulletin Paper
Transactions of JWRI / Vol.36 No.1 (2007-07)
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著者版フラグ
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text
DCTERMS.bibliographicCitation
Transactions of JWRI.36(1) P.41-P.45
DC.title
Bond Coat Oxidation and Hot Corrosion Behavior of Plasma Sprayed YSZ Coating on Ni Superalloy
DC.creator
Saremi, Mohsen
Afrasiabi, Abbas
Kobayashi, Akira
DC.publisher
大阪大学接合科学研究所
DC.language" scheme="DCTERMS.RFC1766
英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF
2007-07
DC.identifier" scheme="DCTERMS.URI
http://hdl.handle.net/11094/5187
DC.subject
Oxidation
Hot corrosion
YSZ
Plasma spray
DCTERMS.abstract
Oxidation and hot corrosion are considered as two main destructive factors in thermal barrier coatings (TBCs). The mechanisms of bond coat oxidation and hot corrosion of yttria stabilized zirconia (YSZ) plasma sprayed coatings were evaluated. Oxidation tests were carried out at 1100℃ for 22,42 and 100h. Hot corrosion tests were performed on the coating in molten salt (Na₂SO₄+V₂O₅) at 1050℃ for 40h. Spallation was observed at the bond coat/YSZ interface after 100h oxidation. Micro XRD analysis after the oxidation test revealed the formation of destructive oxides such as NiCr₂O₄, NiCrO₃ and NiCrO₄ within the bond coat of YSZ coating. XRD and SEM studies after hot corrosion demonstrated the formation of monoclinic ZrO₂ and YVO₄ crystals as hot corrosion products, which caused the degradation of YSZ coating.
citation_title
Bond Coat Oxidation and Hot Corrosion Behavior of Plasma Sprayed YSZ Coating on Ni Superalloy
citation_author
Saremi, Mohsen
Afrasiabi, Abbas
Kobayashi, Akira
citation_publisher
大阪大学接合科学研究所
citation_language
英語
citation_date
2007-07
citation_journal_title
Transactions of JWRI
citation_volume
36
citation_issue
1
citation_firstpage
41
citation_lastpage
45
citation_issn
03874508
citation_public_url
http://hdl.handle.net/11094/5187
citation_keywords
Oxidation
Hot corrosion
YSZ
Plasma spray