書誌事項
- タイトル別名
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- Effect of Thermo–Mechanical Treatment on Ductility of Cu–0.29wt%Zr Alloy Wires
- Cu-0.29wt%Zr ゴウキン センザイ ノ エンセイ エ ノ カコウ ネツ ショリ ノ エイキョウ
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<p>In our previous study, a thin wire of a Cu–0.29wt％Zr alloy was produced by annealing after rolling and then by two intermediate annealings during wire drawing（IA wire）. The IA wire had a value of ultimate tensile strength σu of 610 MPa, and had a small value of total elongation εt of 1.2％ despite a small value of grain size D of 240 nm. In this study, a thin wire of the alloy was produced by annealing after rolling and by subsequent wire drawing（S wire）. Even though the S wire had almost the same values of σu＝620 MPa and D＝230 nm as the IA wire, the S wire exhibited a larger value of εt＝2.9％. This study investigates the cause of the smaller value of εt for the IA wire. In both the IA and S wires, voids are formed by decohesion of the interface between the Cu matrix and particles consisting of eutectic phase（Cu＋Cu5Zr） during wire drawing； however, the fraction of the eutectic particles with voids is larger in the IA wire than in the S wire. The IA wire exhibits the lower ductility as a result of easier linking of the voids during tensile testing. In addition, the larger fraction of the eutectic particles with voids in the IA wire is attributed to the fact that the size of recrystallized grains generated by the intermediate annealing during wire drawing become larger than that of grains before the intermediate annealing, and during subsequent wire drawing, dislocations accumulate significantly around the eutectic particles, resulting in large stress concentration.</p>
収録刊行物
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- 銅と銅合金
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銅と銅合金 59 (1), 76-79, 2020
日本銅学会
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詳細情報 詳細情報について
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- CRID
- 1391412326423575296
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- NII論文ID
- 130007940909
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- NII書誌ID
- AA11995570
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- ISSN
- 2435872X
- 13477234
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- NDL書誌ID
- 030593427
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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
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可
