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過共晶Al–Si合金溶湯と異種合金溶湯との混合過程における過冷却現象と初晶凝固
| Title: | 過共晶Al–Si合金溶湯と異種合金溶湯との混合過程における過冷却現象と初晶凝固 |
| Other Titles: | Undercooling and primary solidification behavior in mixture of hypereutectic and another Al-Si alloy melts |
| Authors: | 大参, 達也1 Browse this author →KAKEN DB | | 松浦, 清隆2 Browse this author →KAKEN DB | | 工藤, 昌行3 Browse this author | | 伊藤, 洋一4 Browse this author |
| Authors(alt): | Ohmi, Tatsuya1 | | Matsuura, Kiyotaka2 | | Kudoh, Masayuki3 | | Itoh, Youichi4 |
| Keywords: | numerical simulation | | hypereutectic Al-Si alloy | | solidification | | undercooling | | mixing | | agitation |
| Issue Date: | Jan-1998 |
| Publisher: | 軽金属学会 |
| Journal Title: | 軽金属 |
| Journal Title(alt): | Journal of Japan Institute of Light Metals |
| Volume: | 48 |
| Issue: | 1 |
| Start Page: | 42 |
| End Page: | 47 |
| Publisher DOI: | 10.2464/jilm.48.42 |
| Abstract: | A simplified numerical model is presented to investigate the undercooling and solidification behavior of a hypereutectic Al–Si alloy during the mixing process of two kinds of molten alloys with different temperature and composition. This model involves a single slab of the second melt (Al–32 mass%Si alloy) stretching in the infinite bulk of the first melt (Al–12 mass%Si alloy). The second melt and, in some cases, a part of the first melt near the second melt are undercooled and solidified in the course of the mixing. The number of primary crystals is maximized at a certain strain rate of the stretching slab, depending on the initial thickness of the slab, while the maximum undercooling of the second melt increases as the strain rate increases. These results suggest that excessive agitation during the mixing may depress the refinement of the primary crystals. |
| Relation: | https://www.jstage.jst.go.jp/article/jilm/48/1/48_1_42/_article/-char/ja/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/74626 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 大参 達也
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