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有色金属工程:2019,9(7):-
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[Zr0.73(Cu0.59Ni0.41)0.27]87Al13合金过冷液相区热塑性成形研究
蒋烨
(兰州理工大学)
Study on thermoplastic forming in supercooled liquid region of [Zr0.73(Cu0.59Ni0.41)0.27]87Al13
jiangye
(LanZhou University of Technology)
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投稿时间:2019-04-18    修订日期:2019-04-25
中文摘要: 为了研究[Zr0.73(Cu0.59Ni0.41)0.27]87Al13非晶合金的热塑性成形性能以及绘制其对应的热加工图谱,在Gleeble3500型热模拟压缩实验机上对该非晶合金进行不同实验参数下的热模拟压缩实验以获得对应的实验数据。研究表明,合金在压缩过程中变形行为由牛顿流变演变为非牛顿流变;同时,过高或过低的热加工温度均能导致合金晶化现象的产生;对数据的进一步分析可以得到该合金在不同热塑性成形参数下的功率耗散图与流变失稳图,然后绘制出相应的热加工图谱,通过对相应热加工图进行分析可以得出,该合金在温度为420℃与430℃,应变速率为10-3s-1时具有较高功率耗散系数且没有失稳区域,因此,合金可选的热塑性加工参数为温度420℃~430℃,应变速率为10-3s-1。
Abstract:Thermal simulation compression experiments based on different experimental parameters of the amorphous alloy was carried out by utilizing Gleeble 3500 thermal simulation compression machine to study the thermoplastic forming properties of [Zr0.73(Cu0.59Ni0.41)0.27]87Al13 amorphous alloy and have corresponding thermal processing map drawn. Results are indicative of that newtonian rheology evolves into non-newtonian rheology occurred during the process of compression, and production of crystallization can be triggered by various thermal processing temperature. Power dissipation diagram and rheological instability diagram based on different thermoplastic forming parameters go with the further analysis of the data, thus, a corresponding thermal processing map can be constructed, which shows that the optional thermoplastic processing parameters for the alloy are temperatures from 420°C to 430°C and strain rates of 10-3s-1, for higher power dissipation factor and no instability zone based on above-mentioned thermal processing parameters.
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蒋烨.[Zr0.73(Cu0.59Ni0.41)0.27]87Al13合金过冷液相区热塑性成形研究[J].有色金属工程,2019,9(7):.

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