書誌事項
- タイトル別名
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- Improvement of ductility by composite precipitates in chill-cast Al-Li-Ti alloys.
- チルキャストシタ Al Li Ti ゴウキン ノ フクゴウ セキシュツブツ ニ
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抄録
Composite precipitates consisting of the core particle, presumably Al3 (Li, Ti) and the outer shell of δ'-Al3Li phase were formed by a two-stage aging(at 500°C and then at 180 or 190°C) in chill cast specimens of Al-(1.6-2.3) wt% Li-(0.45-0.95) wt%Ti alloys. Al-Li-Ti ternary alloys containing both the composite precipitates and δ' particles in the peak-aged condition, showed a considerably superior ductility to that of the peak-aged Al-Li binary alloy together with a higher strength. Bow-out dislocations and tangled dislocations were observed near the composite precipitates in the tensile-strained specimens of Al-Li-Ti alloys and shear type of transgranular fracture were recognized in SEM fractography of the peak-aged specimens of Al-Li-Ti alloys containing the composite precipitates, whereas planar slip of dislocations and typical intergranular fracture were observed in the peak-aged specimens of Al-Li binary alloys. The composite precipitates improve ductility by retarding the planar slip mode in Al-Li-Ti alloys.
収録刊行物
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- 軽金属
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軽金属 40 (2), 116-122, 1990
一般社団法人 軽金属学会
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詳細情報 詳細情報について
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- CRID
- 1390282681313284992
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- NII論文ID
- 130004208980
- 40000841083
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- NII書誌ID
- AN00069773
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- ISSN
- 18808018
- 04515994
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- NDL書誌ID
- 3655505
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可