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| 铝合金流变铸造中的双层膜缺陷 |
| Bifilm Defect in Rheocasting of Aluminum Alloys |
| Received:May 02, 2020 Revised:May 10, 2020 |
| DOI：10.3969/j.issn.1674-6457.2020.03.012 |
| 中文关键词: 流变铸造 铝合金 双层膜缺陷 半固态浆料 工艺与模具 |
| 英文关键词: rheocasting aluminum alloys bifilm defect semi-solid slurry processing and mold |
| 基金项目:国家自然科学基金（51764040）；江西省教育厅落地计划（KJLD14016） |
| Author Name | Affiliation | | GUO Hong-min | a. School of Materials Science and Engineering, b. Key Lab of Near-net Forming in Jiangxi Province, Nanchang University, Nanchang 330031, China | | MA Teng-fei | a. School of Materials Science and Engineering, Nanchang University, Nanchang 330031, China | | SUN Tie-zhi | a. School of Materials Science and Engineering, Nanchang University, Nanchang 330031, China | | LI Jin-peng | a. School of Materials Science and Engineering, Nanchang University, Nanchang 330031, China | | YANG Xiang-jie | b. Key Lab of Near-net Forming in Jiangxi Province, Nanchang University, Nanchang 330031, China |
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| 中文摘要: |
| 目的 揭示制约铝合金流变铸造产业化应用的关键因素。方法 举证了双层膜是铝合金流变铸造中最具破坏性的缺陷。结果 双层膜缺陷主要来源于半固态浆料制备，开发无双层膜缺陷半固态浆料的制备方法和技术是研究和发展流变铸造首要解决的关键问题。结论 提出了在半固态浆料成形阶段通过优化产品结构、流变铸造工艺和模具进一步减少双层膜缺陷的基本思路。 |
| 英文摘要: |
| The work aims to reveal the key factors restricting the industrial application of rheocasting for aluminum alloys. It was proved that bifilm was the most destructive defect in rheocasting of aluminum alloys. The analysis showed that bifilm defect was mainly derived from the stage of semi-solid slurry preparation. The further development of preparation and technology of semi-solid slurry without bifilm defect was the key to study and develop the rheocasting. The basic ideas of reducing bifilm defect in the stage of semi-solid slurry forming by optimizing product structure, rheocasting process and mold have been put forward. |
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