書誌事項
- タイトル別名
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- Cast structures and grain refinement of superheat-treated Mg-Al alloy.
- カネツ ショリシタ Mg Al ゴウキン ノ チュウゾウ ソシキ ト ケッショ
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抄録
In order to understand the mechanisms of grain refinement of a superheat-treated magnesium alloy, pure magnesium samples containing 0 to 10at%Al were heated at 900°C and held for 1800s. The samples were then cooled at a constant rate and cast into a metallic mold at 660 or 680°C. Samples were melted ln the graphite, cast iron, and magnesla crucibles to clarify the influences of impurity elements in the crucible on the grain size. Metallographic examinations were performed to measure the grain size of solidified structures. An electron probe micro analyzer was used to find the foreign particles for heterogeneous nucleation in the fine grains. The grain refinement of superheat-treated Mg-Al alloys depends on aluminum content. The finest grain size was obtained in the Mg-6at%Al alloy. The grain size became coarser as the aluminum content increased or decreased from 6%. The molten magnesium alloy attacked the iron and magnesia crucibles, so Fe and Si contents of samples increased. However, no foreign particles such as metallic compounds which occur in heterogeneous nucleation were observed in any grain.
収録刊行物
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- 軽金属
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軽金属 44 (8), 427-432, 1994
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
- 1390001206337104000
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- NII論文ID
- 130004075968
- 10003033949
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- NII書誌ID
- AN00069773
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- COI
- 1:CAS:528:DyaK2cXmtlGqurg%3D
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- ISSN
- 18808018
- 04515994
- http://id.crossref.org/issn/04515994
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- NDL書誌ID
- 3894392
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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
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可