| A356铝合金半固态成形坯料二次加热工艺的优化 |
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| 引用本文： | 裴小虎,杨弋涛,张恒华,邵光杰.A356铝合金半固态成形坯料二次加热工艺的优化[J].特种铸造及有色合金,2011,31(5):428-431,388. |
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| 作者姓名： | 裴小虎 杨弋涛 张恒华 邵光杰 |
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| 作者单位： | 上海大学材料科学与工程学院 |
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| 摘 要： | 使用多工位电磁感应旋转加热装置对A356圆棒料进行重熔加热。选用不同的加热功率和工位,得到不同的非树枝晶组织,借助晶粒参数(如晶粒平均大小、形状系数、固相率等)对得到的显微组织进行研究,选出综合指标最优的加热工艺,再对该工艺加热的坯料压铸成阶梯试样。通过对阶梯试样性能分析,验证了该工艺的合理性和优越性。结合凝固理论,分析了坯料二次加热的演变规律。
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| 关 键 词： | 半固态 触变成型 重熔加热 晶粒参数 |
Reheating Optimization of A356 Aluminum Alloy Billets for Semi-solid Forming |
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| Pei Xiaohu,Yang Yitao,Zhang Henghua,Shao Guagjie.Reheating Optimization of A356 Aluminum Alloy Billets for Semi-solid Forming[J].Special Casting & Nonferrous Alloys,2011,31(5):428-431,388. |
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| Authors: | Pei Xiaohu Yang Yitao Zhang Henghua Shao Guagjie |
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| Affiliation: | Pei Xiaohu,Yang Yitao,Zhang Henghua,Shao Guagjie(School of Materials Science and Engineering,Shanghai University,Shanghai,China) |
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| Abstract: | Through the reheating A356 cilinder-shaped billet with the multi-station rotating electromagnetic induction equipment,variation of aluminum alloy structure from room temperature to semi-solid temperature was described.With different heating powers and heating stations,different non-dendritic structures in the semi-solid aluminum alloy billets were observed.Microstructure of the prepared billets was investigated by grain parameters including grain average size,shape coefficient and solid fraction.Optimized p... |
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| Keywords: | Semi-solid Thixo-forming Reheating Grain Parameters |
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