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jwri38_02_043
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論文情報
タイトル
Microstructure and Hardness Distribution of Friction Stir Welded 1050 Al and IF Steel with Different Original Grain Size
著者
Sun, Yufeng
Sun, Yufeng
Fujii, Hidetoshi
Fujii, Hidetoshi
Takada, Yutaka
Takada, Yutaka
Tsuji, Nobuhiro
Tsuji, Nobuhiro
Nakata, Kazuhiro
Nakata, Kazuhiro
Nogi, Kiyoshi
Nogi, Kiyoshi
キーワード等
Friction stir welding
Accumulative roll bonding
Ultrafine grained structure
Vickers hardness
抄録
In this study, 2mm-thick commercial 1050-Al plates and IF steel plates with three different kinds of original grain size were subjected to the friction stir welding process. These three kinds of samples with different grain sizes were obtained by accumulative roll bonding after a 5 cycles process, 5 cycles ARB process plus annealing and fully annealing, respectively. The microstructure evolution and Vickers hardness in the stir zone of all the samples were investigated. For both 1050-Al and IF steel, the ARB plus annealed samples with an intermediate original grain size finally produced the most refined microstructure and highest Vickers hardness in the stir zone. While for the ARB processed samples with ultrafine grained structure, significant grain growth and decrease in hardness occurred in the stir zone. The microstructure coarsening in the stir zone is suggested to be caused by the heating of the unstable structure in the ultrafine grained materials during friction stir welding process.
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
2
開始ページ
43
終了ページ
48
刊行年月
2009-12
ISSN
03874508
NCID
AA00867058
URL
http://hdl.handle.net/11094/4695
言語
英語
カテゴリ
紀要論文 Departmental Bulletin Paper
Transactions of JWRI / Vol.38 No.2 (2009-12)
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text
DCTERMS.bibliographicCitation
Transactions of JWRI.38(2) P.43-P.48
DC.title
Microstructure and Hardness Distribution of Friction Stir Welded 1050 Al and IF Steel with Different Original Grain Size
DC.creator
Sun, Yufeng
Fujii, Hidetoshi
Takada, Yutaka
Tsuji, Nobuhiro
Nakata, Kazuhiro
Nogi, Kiyoshi
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
2009-12
DC.identifier" scheme="DCTERMS.URI
http://hdl.handle.net/11094/4695
DC.subject
Friction stir welding
Accumulative roll bonding
Ultrafine grained structure
Vickers hardness
DCTERMS.abstract
In this study, 2mm-thick commercial 1050-Al plates and IF steel plates with three different kinds of original grain size were subjected to the friction stir welding process. These three kinds of samples with different grain sizes were obtained by accumulative roll bonding after a 5 cycles process, 5 cycles ARB process plus annealing and fully annealing, respectively. The microstructure evolution and Vickers hardness in the stir zone of all the samples were investigated. For both 1050-Al and IF steel, the ARB plus annealed samples with an intermediate original grain size finally produced the most refined microstructure and highest Vickers hardness in the stir zone. While for the ARB processed samples with ultrafine grained structure, significant grain growth and decrease in hardness occurred in the stir zone. The microstructure coarsening in the stir zone is suggested to be caused by the heating of the unstable structure in the ultrafine grained materials during friction stir welding process.
citation_title
Microstructure and Hardness Distribution of Friction Stir Welded 1050 Al and IF Steel with Different Original Grain Size
citation_author
Sun, Yufeng
Fujii, Hidetoshi
Takada, Yutaka
Tsuji, Nobuhiro
Nakata, Kazuhiro
Nogi, Kiyoshi
citation_publisher
大阪大学接合科学研究所
citation_language
英語
citation_date
2009-12
citation_journal_title
Transactions of JWRI
citation_volume
38
citation_issue
2
citation_firstpage
43
citation_lastpage
48
citation_issn
03874508
citation_public_url
http://hdl.handle.net/11094/4695
citation_keywords
Friction stir welding
Accumulative roll bonding
Ultrafine grained structure
Vickers hardness