振动频率对消失模铸造Al/Mg复合材料界面组织和力学性能的影响

王俊龙; 蒋文明; 管峰; 李广宇; 张政; 樊自田

doi:10.15980/j.tzzz.2022.06.002

专题·金属基复合材料及应用 | 浏览量 : 0 下载量: 14 CSCD: 0

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振动频率对消失模铸造Al/Mg复合材料界面组织和力学性能的影响
Effects of Vibration Frequency on Interfacial Microstructure and Mechanical Properties of Al/Mg Composites by Lost Foam Casting
2022年42卷第6期页码：672-677
纸质出版日期： 2022 ，
DOI： 10.15980/j.tzzz.2022.06.002

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王俊龙, 蒋文明, 管峰, 等. 振动频率对消失模铸造Al/Mg复合材料界面组织和力学性能的影响[J]. 特种铸造及有色合金, 2022,42(6):672-677.

Wang Junlong, Jiang Wenming, Guan Feng, et al. Effects of Vibration Frequency on Interfacial Microstructure and Mechanical Properties of Al/Mg Composites by Lost Foam Casting[J]. Special Casting & Nonferrous Alloys, 2022,42(6):672-677.
王俊龙, 蒋文明, 管峰, 等. 振动频率对消失模铸造Al/Mg复合材料界面组织和力学性能的影响[J]. 特种铸造及有色合金, 2022,42(6):672-677. DOI： 10.15980/j.tzzz.2022.06.002.

Wang Junlong, Jiang Wenming, Guan Feng, et al. Effects of Vibration Frequency on Interfacial Microstructure and Mechanical Properties of Al/Mg Composites by Lost Foam Casting[J]. Special Casting & Nonferrous Alloys, 2022,42(6):672-677. DOI： 10.15980/j.tzzz.2022.06.002.

摘要

采用机械振动强化Al/Mg双金属复合材料的结合界面，研究了振动频率对消失模固-液复合铸造Al/Mg双金属复合材料的界面组织和力学性能的影响。结果表明，振动频率对Al/Mg双金属复合材料的界面组织和力学性能有显著影响。随着振动频率增加，Al/Mg双金属复合材料界面金属间化合物（IMCs）层厚度减小，导致Al

和Al

脆性相减少，并且界面Mg

Si相细化，分布由团聚变为分散。当振动频率为50 Hz时，Al/Mg双金属结合界面的平均剪切性能最大，达到46.83 MPa

相比未振动的Al/Mg双金属复合材料性能提升47.13%。

Abstract

Mechanical vibration was utilized to strengthen bonding interface of the Al/Mg bimetallic composites. The effects of vibration frequency on the interfacial microstructure and mechanical properties of Al/Mg bimetallic composites by LFC solid-liquid composite casting were investigated. The results indicate that the vibration frequency has a significant effect on the interfacial microstructure and mechanical properties of Al/Mg bimetallic composites. With the increase of vibration frequency

the thickness of the intermetallic compound（IMCs） layer is decreased

resulting in the decrease of brittle phase of Al

and Al

and the Mg

Si phase at the interface is refined with a distribution change from agglomeration to dispersion. When the vibration frequency is 50 Hz

the shear strength of Al/Mg bimetallic composites reaches the maximum of 46.83 MPa

which is 47.13% higher than that of the Al/Mg bimetallic composites without vibration.

关键词

振动频率Al/Mg双金属复合材料界面组织力学性能

Keywords

Vibration FrequencyAl/Mg Bimetallic CompositesInterfacial MicrostructureMechanical Properties

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