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jwri37_01_045
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論文情報
タイトル
Wear Behavior of Sintered Magnesium Matrix Composites Reinforced with Mg2Si Particle under Wet Sliding Conditions
著者
Kondoh, Katsuyoshi
Kondoh, Katsuyoshi
Umeda, Junko
Umeda, Junko
Kawabata, Kenshi
Kawabata, Kenshi
Seki, Yoshikazu
Seki, Yoshikazu
Kawamura, Yoshihito
Kawamura, Yoshihito
キーワード等
Magnesium Composite
Mg₂Si Particle
Repeated Plastic Working
Adhesive
Abrasive
Friction Coefficient
抄録
For evaluation of wear behavior in the sliding conditions, powder metallurgy Mg97Y₂Zn₁ alloy composites reinforced with additive Mg₂Si particles prepared via the repeated plastic working (RPW) process were investigated. The RPW process was effective in refining Mg₂Si particles of 5 to 10 wt% and grains of the matrix via dynamic recrystallization. When increasing the repetition number of RPW process from 200 to 600 cycles, the particle size of Mg₂Si additives changed from 8μm to 1~2μm, and the grain size of the magnesium matrix was 1μm or less. With regard to the defensive and offensive behavior in wet wear test, this composite had superior adhesive wear resistance compared with the conventional magnesium alloys because of its high matrix hardness at elevated temperature. The uniform distribution of refined Mg₂Si particles was useful for improving both defensive and offensive properties against AZ31B counter disk specimens. Deep scratches of the disk surface were caused by coarse Mg₂Si additives, and resulted in an unstable and high friction coefficient.
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
37
号
1
開始ページ
45
終了ページ
49
刊行年月
2008-07
ISSN
03874508
NCID
AA00867058
URL
http://hdl.handle.net/11094/11498
言語
英語
カテゴリ
紀要論文 Departmental Bulletin Paper
Transactions of JWRI / Vol.37 No.1 (2008-07)
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text
DCTERMS.bibliographicCitation
Transactions of JWRI.37(1) P.45-P.49
DC.title
Wear Behavior of Sintered Magnesium Matrix Composites Reinforced with Mg2Si Particle under Wet Sliding Conditions
DC.creator
Kondoh, Katsuyoshi
Umeda, Junko
Kawabata, Kenshi
Seki, Yoshikazu
Kawamura, Yoshihito
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
2008-07
DC.identifier" scheme="DCTERMS.URI
http://hdl.handle.net/11094/11498
DC.subject
Magnesium Composite
Mg₂Si Particle
Repeated Plastic Working
Adhesive
Abrasive
Friction Coefficient
DCTERMS.abstract
For evaluation of wear behavior in the sliding conditions, powder metallurgy Mg97Y₂Zn₁ alloy composites reinforced with additive Mg₂Si particles prepared via the repeated plastic working (RPW) process were investigated. The RPW process was effective in refining Mg₂Si particles of 5 to 10 wt% and grains of the matrix via dynamic recrystallization. When increasing the repetition number of RPW process from 200 to 600 cycles, the particle size of Mg₂Si additives changed from 8μm to 1~2μm, and the grain size of the magnesium matrix was 1μm or less. With regard to the defensive and offensive behavior in wet wear test, this composite had superior adhesive wear resistance compared with the conventional magnesium alloys because of its high matrix hardness at elevated temperature. The uniform distribution of refined Mg₂Si particles was useful for improving both defensive and offensive properties against AZ31B counter disk specimens. Deep scratches of the disk surface were caused by coarse Mg₂Si additives, and resulted in an unstable and high friction coefficient.
citation_title
Wear Behavior of Sintered Magnesium Matrix Composites Reinforced with Mg2Si Particle under Wet Sliding Conditions
citation_author
Kondoh, Katsuyoshi
Umeda, Junko
Kawabata, Kenshi
Seki, Yoshikazu
Kawamura, Yoshihito
citation_publisher
大阪大学接合科学研究所
citation_language
英語
citation_date
2008-07
citation_journal_title
Transactions of JWRI
citation_volume
37
citation_issue
1
citation_firstpage
45
citation_lastpage
49
citation_issn
03874508
citation_public_url
http://hdl.handle.net/11094/11498
citation_keywords
Magnesium Composite
Mg₂Si Particle
Repeated Plastic Working
Adhesive
Abrasive
Friction Coefficient