| 熔体处理温度对自孕育法制备AZ61半固态浆料的影响 |
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| 引用本文： | 严楷,李元东,马颖,陈体军.熔体处理温度对自孕育法制备AZ61半固态浆料的影响[J].特种铸造及有色合金,2011,31(5):424-427,388. |
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| 作者姓名： | 严楷 李元东 马颖 陈体军 |
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| 作者单位： | 1. 兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室
2. 兰州理工大学甘肃省有色金属新材料省部共建国家重点实验室;兰州理工大学有色金属合金省部共建教育部重点实验室 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 采用自孕育法制备AZ61变形镁合金半固态浆料,研究了熔体处理温度对制备AZ61变形镁合金半固态浆料的影响。结果表明,自孕育铸造法制备AZ61半固态浆料在液相线以下凝固成形,可以获得近球状的初生相。适宜的熔体处理温度为700℃,对应的平均晶粒尺寸为39.8μm。熔体处理温度过低时,组织中的树枝晶减少的同时细小的近球状晶增多,但是其晶粒尺寸大小分布不均匀。熔体处理温度过高时,组织中树枝晶增多,晶粒平均尺寸显著变大。
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| 关 键 词： | 熔体处理温度 自孕育法 AZ61变形镁合金 半固态 |
Effects of Melt Processing Temperature on AZ61 Semisolids Slurry Prepared by Selfinoculation Method |
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| Yan Kai,Li Yuandong,Ma Ying,Chen Tijun.Effects of Melt Processing Temperature on AZ61 Semisolids Slurry Prepared by Selfinoculation Method[J].Special Casting & Nonferrous Alloys,2011,31(5):424-427,388. |
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| Authors: | Yan Kai Li Yuandong Ma Ying Chen Tijun |
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| Affiliation: | Yan Kai1,Li Yuandong1,2,Ma Ying1,Chen Tijun1,2(1.State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials,Lanzhou University of Technology,Lanzhou,China,2.Key Laboratory of Nonferrous Metal Alloys,the Ministry of Education,China) |
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| Abstract: | Effects of melt processing temperature on AZ61 magnesium alloy slurry prepared by self-inoculation method were investigated by OM(optical microscope) and SEM(scanning electron microscope).The results reveal that near spherical grain can be observed in AZ61 magnesium alloy slurry prepared by self-inoculation method with forming at below liquidus temperature.Average grain size in the slurry reaches 39.8 μm with melting processing temperature of 700 ℃.With the lower melt processing temperature,dendritic grain in the microstructure is decreased and fine near spherical grain is increased with heterogeneous distribution in size,while with higher temperature,dendrite grain in the microstructure is increased with obvious growth of average grain size. |
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| Keywords: | Melt Processing Temperature Self-inoculation AZ61 Magnesium Alloy Semi-solid |
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