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論文情報
タイトル
Microstructure and Mechanical Properties of Friction Stir Welded Pure Cu Plates
著者
Sun, Yufeng
Sun, Yufeng
Xu, Nan
Xu, Nan
Morisada, Yoshiaki
Morisada, Yoshiaki
Fujii, Hidetoshi
Fujii, Hidetoshi
キーワード等
Friction stir welding
Microstructure
Mechanical property
pure Cu
抄録
The process window for the friction stir welding of fully annealed commercial pure Cu was determined at an applied load of 1000kg, which includes a welding speed that ranged from 200 to 800 mm/min, and a rotation speed that ranged from 500 to 1300 rpm. In the stir zone of sound welds, a remarkably refined microstructure with the average grain size of 6.9 μm can be obtained by decreasing the rotation speed to 1000rpm. However, the grain size becomes larger than the base metal when the rotation speed is higher than 1300rpm. The stir zone may contain a structure composed of a high density dislocation cell of large developed annealing twin. The joints welded at a rotation speed less than 1300 rpm fractured in the base metal. However, the joints welded at a rotation speed higher than 1300 rpm fractured in the stir zone. The mechanism of the mechanical property changes in the Cu welds was proposed and clarified from the viewpoint of microstructural evolution.
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
41
号
1
開始ページ
53
終了ページ
58
刊行年月
2012-06
ISSN
03874508
NCID
AA00867058
URL
http://hdl.handle.net/11094/23160
言語
英語
カテゴリ
紀要論文 Departmental Bulletin Paper
Transactions of JWRI / Vol.41 No.1 (2012-06)
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著者版フラグ
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text
DCTERMS.bibliographicCitation
Transactions of JWRI.41(1) P.53-P.58
DC.title
Microstructure and Mechanical Properties of Friction Stir Welded Pure Cu Plates
DC.creator
Sun, Yufeng
Xu, Nan
Morisada, Yoshiaki
Fujii, Hidetoshi
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
2012-06
DC.identifier" scheme="DCTERMS.URI
http://hdl.handle.net/11094/23160
DC.subject
Friction stir welding
Microstructure
Mechanical property
pure Cu
DCTERMS.abstract
The process window for the friction stir welding of fully annealed commercial pure Cu was determined at an applied load of 1000kg, which includes a welding speed that ranged from 200 to 800 mm/min, and a rotation speed that ranged from 500 to 1300 rpm. In the stir zone of sound welds, a remarkably refined microstructure with the average grain size of 6.9 μm can be obtained by decreasing the rotation speed to 1000rpm. However, the grain size becomes larger than the base metal when the rotation speed is higher than 1300rpm. The stir zone may contain a structure composed of a high density dislocation cell of large developed annealing twin. The joints welded at a rotation speed less than 1300 rpm fractured in the base metal. However, the joints welded at a rotation speed higher than 1300 rpm fractured in the stir zone. The mechanism of the mechanical property changes in the Cu welds was proposed and clarified from the viewpoint of microstructural evolution.
citation_title
Microstructure and Mechanical Properties of Friction Stir Welded Pure Cu Plates
citation_author
Sun, Yufeng
Xu, Nan
Morisada, Yoshiaki
Fujii, Hidetoshi
citation_publisher
大阪大学接合科学研究所
citation_language
英語
citation_date
2012-06
citation_journal_title
Transactions of JWRI
citation_volume
41
citation_issue
1
citation_firstpage
53
citation_lastpage
58
citation_issn
03874508
citation_public_url
http://hdl.handle.net/11094/23160
citation_keywords
Friction stir welding
Microstructure
Mechanical property
pure Cu