書誌事項
- タイトル別名
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- Effects of Short Time Solution Treatment at High Temperature Using Induction Heating Apparatus on Mechanical Properties in JIS AC4CH Alloys
- ユウドウ カネツ ソウチ ニ ヨル コウオン タンジカン ヨウタイカ ショリ ガ AC4CH ゴウキン ノ キカイテキ セイシツ ニ オヨボス エイキョウ
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<p> The effects of microstructure changes by short time solution treatment at high temperatures using a high-frequency induction heating apparatus on mechanical properties in an AC4CH aluminum alloy were investigated. In the sample solution treated at 560℃ for 3min with heating rate of 40℃/s, Vickers hardness in the primary α-aluminum phases and 0.2% proof stress increased by 21% and by 23% respectively as compared with those of the as-cast condition. The increase in hardness and proof stress was in good agreement with Mg and Si concentrations in the primary α-aluminum phases. These mutual relationships suggest that the solid solution hardening is acting effectively. In addition, it is also suggested that formation of the cluster during natural aging has a small influence. For samples which were solution-treated at 560℃ for 3min or more, the work hardening exponent (n value) increased with the increase in strain during the tensile test. The increase in the n value is thought to be due to the change in the dislocation structure caused by the solution of Mg and Si atoms into the α-aluminum phases. Distributions of eutectic Si particles and dimples in the fracture surface suggest that the slight increase of fracture elongation for solution treated at 560℃ beyond 3min was caused by the increase of inter particle distance between the eutectic Si particles. </p>
収録刊行物
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- 鋳造工学
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鋳造工学 86 (7), 523-530, 2014
公益社団法人 日本鋳造工学会
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詳細情報 詳細情報について
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- CRID
- 1390282681487603328
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- NII論文ID
- 130005529635
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- NII書誌ID
- AN10514770
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- ISSN
- 21855374
- 13420429
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- NDL書誌ID
- 025637304
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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
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- 使用不可