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論文情報
タイトル
Analysis of Warm Compaction Behavior of Iron Powder Particles via Cooper-Eaton Equation
著者
Kondoh, Katsuyoshi
Kondoh, Katsuyoshi
Watanabe, Ryuzo
Watanabe, Ryuzo
キーワード等
Warm compaction behavior
Cooper-Eaton equation
Lubricant
Melting point
Friction force
Particle rearrangement
Plastic deformation
抄録
The effect of lubricant particles premixed with iron alloy powder on warm compaction behavior was investigated by using the Cooper-Eaton equation based on a probabilistic approach. In particular, the melting point of the lubricant was examined. Particle rearrangement significantly progresses during warm compaction when the powder temperature is lower than the lubricant melting point. On the other hand, it is hindered when the lubricant is in a liquid state at the elevated temperature. This is due to the strong dependence of the particle rearrangement on the lubrication effect between iron particles, and the formability of the solid lubricant film is poor when the temperature is beyond its melting point. The plastic deformation of iron alloy powder shows little effectiveness on the warm compaction behavior because of the small change in its compaction proof-strength at applied temperatures below 473K. The calculated total fractional volume compaction corresponds to the measured green density. This analytical method is available for quantitatively evaluating the warm compaction behavior in the powder metallurgy (PM) 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
35
号
2
開始ページ
47
終了ページ
51
刊行年月
2006-12
ISSN
03874508
NCID
AA00867058
URL
http://hdl.handle.net/11094/12672
言語
英語
カテゴリ
紀要論文 Departmental Bulletin Paper
Transactions of JWRI / Vol.35 No.2 (2006-12)
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DCTERMS.bibliographicCitation
Transactions of JWRI.35(2) P.47-P.51
DC.title
Analysis of Warm Compaction Behavior of Iron Powder Particles via Cooper-Eaton Equation
DC.creator
Kondoh, Katsuyoshi
Watanabe, Ryuzo
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
2006-12
DC.identifier" scheme="DCTERMS.URI
http://hdl.handle.net/11094/12672
DC.subject
Warm compaction behavior
Cooper-Eaton equation
Lubricant
Melting point
Friction force
Particle rearrangement
Plastic deformation
DCTERMS.abstract
The effect of lubricant particles premixed with iron alloy powder on warm compaction behavior was investigated by using the Cooper-Eaton equation based on a probabilistic approach. In particular, the melting point of the lubricant was examined. Particle rearrangement significantly progresses during warm compaction when the powder temperature is lower than the lubricant melting point. On the other hand, it is hindered when the lubricant is in a liquid state at the elevated temperature. This is due to the strong dependence of the particle rearrangement on the lubrication effect between iron particles, and the formability of the solid lubricant film is poor when the temperature is beyond its melting point. The plastic deformation of iron alloy powder shows little effectiveness on the warm compaction behavior because of the small change in its compaction proof-strength at applied temperatures below 473K. The calculated total fractional volume compaction corresponds to the measured green density. This analytical method is available for quantitatively evaluating the warm compaction behavior in the powder metallurgy (PM) process.
citation_title
Analysis of Warm Compaction Behavior of Iron Powder Particles via Cooper-Eaton Equation
citation_author
Kondoh, Katsuyoshi
Watanabe, Ryuzo
citation_publisher
大阪大学接合科学研究所
citation_language
英語
citation_date
2006-12
citation_journal_title
Transactions of JWRI
citation_volume
35
citation_issue
2
citation_firstpage
47
citation_lastpage
51
citation_issn
03874508
citation_public_url
http://hdl.handle.net/11094/12672
citation_keywords
Warm compaction behavior
Cooper-Eaton equation
Lubricant
Melting point
Friction force
Particle rearrangement
Plastic deformation