Effect of Interfacial Reaction Layer on Bond Strength of Friction-Bonded Joint of Al Alloys to Steel

Ikeuchi, Kenji; Yamamoto, Naotsugu; Takahashi, Makoto; Aritoshi, Masatoshi

doi:https://doi.org/10.18910/3555

このアイテムのアクセス数:162件（2023-12-10 14:23 集計）

このアイテムへのリンクには次のURLをご利用ください: https://doi.org/10.18910/3555

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jwri34_01_001	pdf	なし	2.60 MB	163	2012.09.22

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タイトル	Effect of Interfacial Reaction Layer on Bond Strength of Friction-Bonded Joint of Al Alloys to Steel
著者	NRID 1000010030058 1000010030058 著者名 Ikeuchi, Kenji
	著者名 Yamamoto, Naotsugu
	NRID 1000010294133 1000010294133 researchmap permalink AB_MTakahashi AB_MTakahashi Scopus Author ID 55701142600 55701142600 著者名 Takahashi, Makoto
	著者名 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.
出版者	大阪大学接合科学研究所
	オオサカダイガクセツゴウカガクケンキュウジョ
	Joining and Welding Research Institute, Osaka University
収録物名	Transactions of JWRI
巻(号)	34(1)
ページ	1-10
刊行年月	2005-07
言語	英語
ハンドルURL	https://hdl.handle.net/11094/3555
DOI	https://doi.org/10.18910/3555
PISSN	03874508
NCID	AA00867058
アクセス権	open access
出版タイプ	Version of Record
カテゴリ	紀要論文 Departmental Bulletin Paper
カテゴリ	Transactions of JWRI / Vol.34 No.1 (2005-07)

資源タイプ	紀要論文
ローカル資源タイプ	紀要論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Transactions of JWRI. 2005, 34(1), p. 1-10
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
	オオサカダイガクセツゴウカガクケンキュウジョ
	Joining and Welding Research Institute, Osaka University
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2005-07
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.
DC.identifier	10.18910/3555
DC.format	application/pdf
citation_doi	https://doi.org/10.18910/3555
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
	オオサカダイガクセツゴウカガクケンキュウジョ
	Joining and Welding Research Institute, Osaka University
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_public_url	https://hdl.handle.net/11094/3555
citation_doi_detail	10.18910/3555

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