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jwri37_02_043
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論文情報
タイトル
Mechanical Characteristics of Hot Extruded Non-Combustible Magnesium Alloy using Water Atomized Powder
著者
Elsayed, Ayman
Elsayed, Ayman
Kondoh, Katsuyoshi
Kondoh, Katsuyoshi
Imai, Hisashi
Imai, Hisashi
Umeda, Junko
Umeda, Junko
Kawakami, Masashi
Kawakami, Masashi
著者 (ヨミ)
コンドウ, カツヨシ
イマイ, ヒサシ
ウメダ, ジュンコ
キーワード等
Rapidly solidification
Magnesium alloy powder
Al₂Ca
Hot extrusion
Water atomization
抄録
SWAP (Spinning Water Atomization Process), is one of the rapid solidification processes which promises to produce coarse non-combustible magnesium alloy powder with 1~4mm length, having fine α-Mg grains and Al₂Ca intermetallic compounds. AMX602 (Mg-6%Al-0.5%Mn-2%Ca) powders were compacted at room temperature. Their green compacts with a relative density of about 85% were heated at 573-673 K for 300s in Ar gas atmosphere, and immediately consolidated by hot extrusion. Microstructure observation and evaluation of mechanical properties of the extruded AMX602 alloys were carried out. The uniform and fine microstructures with grains less than 0.45~0.8 μm from dynamic recrystallization during hot extrusion were observed, and were much smaller compared to the extruded AMX602 alloy fabricated by using cast ingots. The extremely fine intermetallic compounds 200~500 nm diameter were uniformly distributed in the matrix of powder metallurgy (P/M) extruded alloys. These microstructures produced excellent mechanical properties in the wrought alloys. For example, in the case of AMX602 alloys extruded at 573K, the tensile strength (TS) of 447 MPa, yield stress (YS) of 425 MPa and 9.6% elongation were obtained.
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
2
開始ページ
43
終了ページ
49
刊行年月
2008-12
ISSN
03874508
NCID
AA00867058
URL
http://hdl.handle.net/11094/4489
言語
英語
カテゴリ
紀要論文 Departmental Bulletin Paper
Transactions of JWRI / Vol.37 No.2 (2008-12)
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著者版フラグ
publisher
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dcmi資源タイプ
text
DCTERMS.bibliographicCitation
Transactions of JWRI.37(2) P.43-P.49
DC.title
Mechanical Characteristics of Hot Extruded Non-Combustible Magnesium Alloy using Water Atomized Powder
DC.creator
Elsayed, Ayman
Kondoh, Katsuyoshi
Imai, Hisashi
Umeda, Junko
Kawakami, Masashi
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
2008-12
DC.identifier" scheme="DCTERMS.URI
http://hdl.handle.net/11094/4489
DC.subject
Rapidly solidification
Magnesium alloy powder
Al₂Ca
Hot extrusion
Water atomization
DCTERMS.abstract
SWAP (Spinning Water Atomization Process), is one of the rapid solidification processes which promises to produce coarse non-combustible magnesium alloy powder with 1~4mm length, having fine α-Mg grains and Al₂Ca intermetallic compounds. AMX602 (Mg-6%Al-0.5%Mn-2%Ca) powders were compacted at room temperature. Their green compacts with a relative density of about 85% were heated at 573-673 K for 300s in Ar gas atmosphere, and immediately consolidated by hot extrusion. Microstructure observation and evaluation of mechanical properties of the extruded AMX602 alloys were carried out. The uniform and fine microstructures with grains less than 0.45~0.8 μm from dynamic recrystallization during hot extrusion were observed, and were much smaller compared to the extruded AMX602 alloy fabricated by using cast ingots. The extremely fine intermetallic compounds 200~500 nm diameter were uniformly distributed in the matrix of powder metallurgy (P/M) extruded alloys. These microstructures produced excellent mechanical properties in the wrought alloys. For example, in the case of AMX602 alloys extruded at 573K, the tensile strength (TS) of 447 MPa, yield stress (YS) of 425 MPa and 9.6% elongation were obtained.
citation_title
Mechanical Characteristics of Hot Extruded Non-Combustible Magnesium Alloy using Water Atomized Powder
citation_author
Elsayed, Ayman
Kondoh, Katsuyoshi
Imai, Hisashi
Umeda, Junko
Kawakami, Masashi
citation_publisher
大阪大学接合科学研究所
citation_language
英語
citation_date
2008-12
citation_journal_title
Transactions of JWRI
citation_volume
37
citation_issue
2
citation_firstpage
43
citation_lastpage
49
citation_issn
03874508
citation_public_url
http://hdl.handle.net/11094/4489
citation_keywords
Rapidly solidification
Magnesium alloy powder
Al₂Ca
Hot extrusion
Water atomization