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  1. 紀要論文
  2. 琉球大学理工学部紀要 工学編
  3. 10号
  1. 部局別インデックス
  2. 工学部

一方向凝固させたAl-Cu共晶合金の組織および強度

http://hdl.handle.net/20.500.12000/26605
http://hdl.handle.net/20.500.12000/26605
71eeafc9-c172-43a5-a8d5-cb59eb03161f
名前 / ファイル ライセンス アクション
No10P071.pdf No10P071.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2013-10-01
タイトル
タイトル 一方向凝固させたAl-Cu共晶合金の組織および強度
言語 ja
作成者 平敷, 兼貴

× 平敷, 兼貴

ja 平敷, 兼貴

糸村, 昌祐

× 糸村, 昌祐

ja 糸村, 昌祐

Heshiki, Kenki

× Heshiki, Kenki

en Heshiki, Kenki

Itomura, Shosuke

× Itomura, Shosuke

en Itomura, Shosuke

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
内容記述
内容記述タイプ Other
内容記述 This paper is a report of an attemption to controll the microstructure of the Al-Cu eutectic alloy by means of unidirectional solidification in the Nickel-Chrome wire wound vertical electric resistance furnace to study the relationship between the solidification condition and the microstructure and the tensile strength of the controlled eutectic specimen. The experimental valiables; solidification rate (R cm/hr) and thermal gradient in the liquid at the liquid-solid interface (G℃/cm) are changed from 10.9cm/hr to 0.6cm/hr and 52℃/cm, 77℃/cm, respectively. The main results are obtained as follows: 1) It is able to controll the microstructure to be appropriate parallel to the direction of solidification. 2) If the ratio of the thermal gradient in the liquid (G) to the solidification rate (R) during unidirectional solidification was over a certain critical value (at this experiment, that value was 77.6) a eutectic colony microstructure was not formed. 3) There is a special relationship between the solidificaton rate (R) and the interlamellar spacing (λ), ie λ∝R^<-n> : n has a value of 0.49. 4) At higher solidification rate, the strength of unidirectional solidified specimen is higher than that of raw material solidified in the metal mould, but at lower conditions, for example 0.6cm/hr in this work, the strength of the test specimen is less than that of raw material because of the faults of lamellar structure and the decreasing of strengthening effect of CuAl₂ phase.
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学理工学部
言語
言語 jpn
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/26605
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0387-429X
収録物識別子タイプ NCID
収録物識別子 AN00250785
収録物名
言語 ja
収録物名 琉球大学理工学部紀要. 工学篇
書誌情報
号 10, p. 71-80
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