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jwri34_01_001
pdf
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論文情報
タイトル
Effect of Interfacial Reaction Layer on Bond Strength of Friction-Bonded Joint of Al Alloys to Steel
著者
Ikeuchi, Kenji
Ikeuchi, Kenji
Yamamoto, Naotsugu
Yamamoto, Naotsugu
Takahashi, Makoto
Takahashi, Makoto
Aritoshi, Masatoshi
Aritoshi, Masatoshi
キーワード等
Friction Bonding
Aluminum Alloys
Steel
Dissimilar Metals Joint
Intermetallic Compound
Oxide Film
TEM Observation
抄録
Joining Al alloy to steel has recently absorbed much attention to meet the requirement for the weight reduction of the transportation from an ecological point of view. As reviewed by Wallach and Elliot in 1981, it has long been accepted that the intermetallic compound (IMC) layer forming at the interface has a critical influence on the joint strength of the Al alloy to steel, and a serious impairment is brought about when its thickness exceeds a few μm. Several recent papers regarding the friction bonding of high-strength Al alloys such as 5000 and 6000 series to steel, however, have reported cases where joints exhibited a premature fracture at the interface on tensile test even when the IMC layer was no more than 1 μm in thickness. In order to reveal metallographic factors controlling the joint strength in these cases, the microstructure of the friction-bonded interface of the high-strength Al alloys to mild steel has been investigated on the basis of close observations with a TEM. It turned out that cracks on tensile test propagated through the IMC layer of 200 nm thickness, suggesting that the IMC layer much thinner than 1 μm was responsible for the brittle fracture in the interfacial region. It was also suggested that minor alloying elements in the Al alloy influenced significantly the kind of IMCs formed at the interface. The nano-scale investigation of the interfacial region will contribute greatly to the enhancement of the performance and reliability of the joint of Al alloy and steel.
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
34
号
1
開始ページ
1
終了ページ
10
刊行年月
2005-07
ISSN
03874508
NCID
AA00867058
URL
http://hdl.handle.net/11094/3555
言語
英語
カテゴリ
紀要論文 Departmental Bulletin Paper
Transactions of JWRI / Vol.34 No.1 (2005-07)
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著者版フラグ
publisher
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text
DCTERMS.bibliographicCitation
Transactions of JWRI.34(1) P.1-P.10
DC.title
Effect of Interfacial Reaction Layer on Bond Strength of Friction-Bonded Joint of Al Alloys to Steel
DC.creator
Ikeuchi, Kenji
Yamamoto, Naotsugu
Takahashi, Makoto
Aritoshi, Masatoshi
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
2005-07
DC.identifier" scheme="DCTERMS.URI
http://hdl.handle.net/11094/3555
DC.subject
Friction Bonding
Aluminum Alloys
Steel
Dissimilar Metals Joint
Intermetallic Compound
Oxide Film
TEM Observation
DCTERMS.abstract
Joining Al alloy to steel has recently absorbed much attention to meet the requirement for the weight reduction of the transportation from an ecological point of view. As reviewed by Wallach and Elliot in 1981, it has long been accepted that the intermetallic compound (IMC) layer forming at the interface has a critical influence on the joint strength of the Al alloy to steel, and a serious impairment is brought about when its thickness exceeds a few μm. Several recent papers regarding the friction bonding of high-strength Al alloys such as 5000 and 6000 series to steel, however, have reported cases where joints exhibited a premature fracture at the interface on tensile test even when the IMC layer was no more than 1 μm in thickness. In order to reveal metallographic factors controlling the joint strength in these cases, the microstructure of the friction-bonded interface of the high-strength Al alloys to mild steel has been investigated on the basis of close observations with a TEM. It turned out that cracks on tensile test propagated through the IMC layer of 200 nm thickness, suggesting that the IMC layer much thinner than 1 μm was responsible for the brittle fracture in the interfacial region. It was also suggested that minor alloying elements in the Al alloy influenced significantly the kind of IMCs formed at the interface. The nano-scale investigation of the interfacial region will contribute greatly to the enhancement of the performance and reliability of the joint of Al alloy and steel.
citation_title
Effect of Interfacial Reaction Layer on Bond Strength of Friction-Bonded Joint of Al Alloys to Steel
citation_author
Ikeuchi, Kenji
Yamamoto, Naotsugu
Takahashi, Makoto
Aritoshi, Masatoshi
citation_publisher
大阪大学接合科学研究所
citation_language
英語
citation_date
2005-07
citation_journal_title
Transactions of JWRI
citation_volume
34
citation_issue
1
citation_firstpage
1
citation_lastpage
10
citation_issn
03874508
citation_public_url
http://hdl.handle.net/11094/3555
citation_keywords
Friction Bonding
Aluminum Alloys
Steel
Dissimilar Metals Joint
Intermetallic Compound
Oxide Film
TEM Observation