書誌事項
- タイトル別名
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- Grain refinement of cast Mg-Al alloys.
- Mg-Al系合金の鋳造組織における結晶粒微細化
- Mg Alケイ ゴウキン ノ チュウゾウ ソシキ ニ オケル ケッショウリュウ ビサイカ
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抄録
To understand the grain refinement mechanisms by C addition and superheating of Mg–Al system alloys, two kinds of experiments were performed. In the first experiment, a commercial AZ91E magnesium alloy was melted and C2Cl6 was added as a carbon nucleant at 1023 K. In the second experiment, normal-purity and high-purity Mg–Al alloys containing 5.6 to 14.1%Al made of 99.9 and 99.99%Mg and 99.99 and 99.999%Al were superheated at 1123 K for 900 s before casting. Metallographic examinations were performed to clarify the solidified structures. In the addition of carbon, rod-like subsance as nucleants could be observed in each grain. EPMA analysis indicated that rod-like subatance was constituted of Al, C and O. The grain refinement of high-purity Mg–Al alloys occur without the superheating. Therefore it is difficult to evaluate the effect of impurities on superheating. In high-purity Mg–Al alloys, however, it seems that minute amount of C is responsible for grain refinement.
収録刊行物
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- 軽金属
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軽金属 48 (8), 395-399, 1998
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
- 1390001206336228608
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- NII論文ID
- 10002665089
- 10007259086
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- NII書誌ID
- AN00069773
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- COI
- 1:CAS:528:DyaK1cXlslKkt78%3D
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- ISSN
- 18808018
- 04515994
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- NDL書誌ID
- 4652061
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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