Al-4%Cu-0.064%Sn合金におけるθ"相の析出とSnリッチ相との関係

鈴木 寿; 菅野 幹宏; 荒木 一郎

doi:10.2464/jilm.28.142

鈴木寿, 菅野幹宏, 荒木一郎

著者情報

ジャーナルフリー

1978 年 28 巻 3 号 p. 142-149

DOI https://doi.org/10.2464/jilm.28.142

詳細

発行日: 1978/03/30 受付日: 1977/10/07 J-STAGE公開日: 2008/07/23 受理日: - 早期公開日: - 改訂日: -
訂正情報
訂正日: 2008/07/23 訂正理由: - 訂正箇所: 論文抄録訂正内容: Wrong : The preceding paper described that Sn-rich phases in an Al-4%Cu alloy having a small amount of Sn play a role for precipitation sites for θ' phases resulting in acceleration of aging at high temperatures. The present work concerns the precipitation process of θ" phases (or G. P. (2) zones) in the alloy at aging temperatures from 100° to 175°C. Heterogeneous precipitation of the coherent θ" phases was theoretically expected. Specimens for high resolution transmission microscopy were homogenized at 520°C, quenched and then either aged at the temperature noted above or up-quenched at 200°C for 10 to 60 sec followed by the aging. The θ" phases in the ternary alloy precipitate on the Sn-rich phases (_??_20A) formed at an early stage of aging. The phases in the binary alloy precipitate on dislocation loops. It is emphasized that the θ" phases precipitate in the ternary alloy in the essentially different process from in the binary alloy. This fact may lead to a peculiar aging behavior at low temperatures.
Right : The preceding paper described that Sn-rich phases in an Al-4%Cu alloy having a small amount of Sn play a role for precipitation sites for θ' phases resulting in acceleration of aging at high temperatures. The present work concerns the precipitation process of θ" phases (or G. P. (2) zones) in the alloy at aging temperatures from 100° to 175°C. Heterogeneous precipitation of the coherent θ" phases was theoretically expected. Specimens for high resolution transmission microscopy were homogenized at 520°C, quenched and then either aged at the temperature noted above or up-quenched at 200°C for 10 to 60 sec followed by the aging. The θ" phases in the ternary alloy precipitate on the Sn-rich phases (_??_20Å) formed at an early stage of aging. The phases in the binary alloy precipitate on dislocation loops. It is emphasized that the θ" phases precipitate in the ternary alloy in the essentially different process from in the binary alloy. This fact may lead to a peculiar aging behavior at low temperatures.

訂正日: 2008/07/23 訂正理由: - 訂正箇所: PDFファイル訂正内容: -

抄録

The preceding paper described that Sn-rich phases in an Al-4%Cu alloy having a small amount of Sn play a role for precipitation sites for θ' phases resulting in acceleration of aging at high temperatures. The present work concerns the precipitation process of θ" phases (or G. P. (2) zones) in the alloy at aging temperatures from 100° to 175°C. Heterogeneous precipitation of the coherent θ" phases was theoretically expected. Specimens for high resolution transmission microscopy were homogenized at 520°C, quenched and then either aged at the temperature noted above or up-quenched at 200°C for 10 to 60 sec followed by the aging. The θ" phases in the ternary alloy precipitate on the Sn-rich phases (_??_20Å) formed at an early stage of aging. The phases in the binary alloy precipitate on dislocation loops. It is emphasized that the θ" phases precipitate in the ternary alloy in the essentially different process from in the binary alloy. This fact may lead to a peculiar aging behavior at low temperatures.

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