| ZCuSn10合金半固态流变挤压件显微组织的演变 |
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| 引用本文： | 李永坤,李璐,周荣锋,张岩峰,肖寒,蒋业华,卢德宏.ZCuSn10合金半固态流变挤压件显微组织的演变[J].材料导报,2017,31(16):60-64. |
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| 作者姓名： | 李永坤 李璐 周荣锋 张岩峰 肖寒 蒋业华 卢德宏 |
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| 作者单位： | 1. 昆明理工大学材料科学与工程学院,昆明,650093;2. 昆明理工大学材料科学与工程学院,昆明 650093;昆明理工大学分析测试研究中心,昆明 650093 |
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| 基金项目： | 国家自然科学基金(51261011;51505205;E050802);云南省教育厅科学研究基金(2015Y058) |
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| 摘 要： | 采用常规铸造和转棒诱导形核法制备ZCuSn10合金,研究制浆工艺对ZCuSn10合金半固态挤压件显微组织的影响,并结合最佳工艺制备法兰件,分析法兰件内部组织的演变规律。结果表明,不同制浆工艺对ZCuSn10合金挤压件显微组织的影响不同,挤压件内部组织基本与浆料组织保持一致。利用转棒转速为500r/min制备的浆料挤压法兰件,可获得固液协同流动性良好的显微组织,试样压头处散热较快,微观组织以固相为主;试样中部及试样前段均为固液两相共存的颗粒状或近球状半固态显微组织。
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| 关 键 词： | 转棒诱导形核 ZCuSn10合金 半固态挤压 组织演变 |
Microstructure Evolution of Semi-solid ZCuSn10 Alloy Prepared by Rheological Squeeze Casting |
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| LI Yongkun,LI Lu,ZHOU Rongfeng,ZHANG Yanfeng,XIAO Han,JIANG Yehua and LU Denghong.Microstructure Evolution of Semi-solid ZCuSn10 Alloy Prepared by Rheological Squeeze Casting[J].Materials Review,2017,31(16):60-64. |
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| Authors: | LI Yongkun LI Lu ZHOU Rongfeng ZHANG Yanfeng XIAO Han JIANG Yehua and LU Denghong |
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| Affiliation: | School of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093,School of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093;Research Center for Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093,School of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093;Research Center for Analysis and Measurement, Kunming University of Science and Technology, Kunming 650093,School of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093,School of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093,School of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093 and School of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093 |
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| Abstract: | The ZCuSn10 alloy was prepared by conventional casting and the stainless steel rotating-rod induced nucleation(RRIN) in the experiment. The effect of process parameters on the microstructure of ZCuSn10 alloy semi-solid squeeze part was investigated. The microstructure evolution of semi-solid ZCuSn10 flange part produced by the optimum process parameters were analyzed. The results show that the effect of different process parameters on the microstructure of extruded ZCuSn10 alloy is different, and the internal structure of squeeze part is consistent with the slurry. The microstructure of the slurry prepared at the speed of 500 r/min was used to obtain the microstructure with good solid-liquid synergetic liquidity. The heat dissipation of the specimen was faster near punch position and the microstructure was mainly solid phase. The microstructure at the middle and at the front of the sample are solid-liquid two-phase coexistence of granular or near spherical semi-solid microstructure. |
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| Keywords: | rotating-rod induced nucleation (RRIN) ZCuSn10 alloy rheological squeeze microstructure evolution |
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