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jwri38_01_057
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論文情報
タイトル
Microstructure and Hardness of Tungsten Coating for High Heat Resistant Material Produced by Means of Gas Tunnel Type Plasma Spraying
著者
Kobayashi, Akira
Kobayashi, Akira
Puric, Jagos
Puric, Jagos
キーワード等
Tungsten
Sprayed coatings
Fusion materials
Gas tunnel type plasma spraying
Microstructure
Vickers Hardness
XRD
抄録
Tungsten (W) is the metal which has the highest melting point of 3422℃, therefore when deposited as a coating it can protect the substrate surface from high heat flux. The W composite produced by coating methods will be a superior candidate for aerospace materials which require high heat resistance (such as TBC). Thermal spraying method is one of potential candidates to produce W composites. In this study, pure W coatings were produced on stainless steel substrates by gas tunnel type plasma spraying at a short spraying distance (40-50mm). Regarding the microstructure, the W coating contained some pores. The Vickers micro-hardness of the W coating was measured as the mechanical property. The W coating had a hardness of Hv=260-320 along its cross section, which is a little lower than the hardness for bulk tungsten. The results of X ray Diffraction showed that the coating consists of pure tungsten, without oxidation.
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
38
号
1
開始ページ
57
終了ページ
62
刊行年月
2009-09
ISSN
03874508
NCID
AA00867058
URL
http://hdl.handle.net/11094/10535
言語
英語
カテゴリ
紀要論文 Departmental Bulletin Paper
Transactions of JWRI / Vol.38 No.1 (2009-09)
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著者版フラグ
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text
DCTERMS.bibliographicCitation
Transactions of JWRI.38(1) P.57-P.62
DC.title
Microstructure and Hardness of Tungsten Coating for High Heat Resistant Material Produced by Means of Gas Tunnel Type Plasma Spraying
DC.creator
Kobayashi, Akira
Puric, Jagos
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
2009-09
DC.identifier" scheme="DCTERMS.URI
http://hdl.handle.net/11094/10535
DC.subject
Tungsten
Sprayed coatings
Fusion materials
Gas tunnel type plasma spraying
Microstructure
Vickers Hardness
XRD
DCTERMS.abstract
Tungsten (W) is the metal which has the highest melting point of 3422℃, therefore when deposited as a coating it can protect the substrate surface from high heat flux. The W composite produced by coating methods will be a superior candidate for aerospace materials which require high heat resistance (such as TBC). Thermal spraying method is one of potential candidates to produce W composites. In this study, pure W coatings were produced on stainless steel substrates by gas tunnel type plasma spraying at a short spraying distance (40-50mm). Regarding the microstructure, the W coating contained some pores. The Vickers micro-hardness of the W coating was measured as the mechanical property. The W coating had a hardness of Hv=260-320 along its cross section, which is a little lower than the hardness for bulk tungsten. The results of X ray Diffraction showed that the coating consists of pure tungsten, without oxidation.
citation_title
Microstructure and Hardness of Tungsten Coating for High Heat Resistant Material Produced by Means of Gas Tunnel Type Plasma Spraying
citation_author
Kobayashi, Akira
Puric, Jagos
citation_publisher
大阪大学接合科学研究所
citation_language
英語
citation_date
2009-09
citation_journal_title
Transactions of JWRI
citation_volume
38
citation_issue
1
citation_firstpage
57
citation_lastpage
62
citation_issn
03874508
citation_public_url
http://hdl.handle.net/11094/10535
citation_keywords
Tungsten
Sprayed coatings
Fusion materials
Gas tunnel type plasma spraying
Microstructure
Vickers Hardness
XRD