半固态工艺制备纳米SiC颗粒增强AM60镁合金的研究

康永林; 王朝辉

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半固态工艺制备纳米SiC颗粒增强AM60镁合金的研究
Nano-SiC Particle Reinforced AM60 Magnesium Alloy Prepared by Semi-solid Process
2007年第8期页码：583-585
纸质出版日期： 2007 ，
DOI：

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[1]康永林,王朝辉.半固态工艺制备纳米SiC颗粒增强AM60镁合金的研究[J].特种铸造及有色合金,2007(08):583-585+569-570.

Kang Yonglin, Wang Zhaohui. Nano-SiC Particle Reinforced AM60 Magnesium Alloy Prepared by Semi-solid Process[J]. Special Casting & Nonferrous Alloys, 2007,(8):583-585.
[1]康永林,王朝辉.半固态工艺制备纳米SiC颗粒增强AM60镁合金的研究[J].特种铸造及有色合金,2007(08):583-585+569-570. DOI：

Kang Yonglin, Wang Zhaohui. Nano-SiC Particle Reinforced AM60 Magnesium Alloy Prepared by Semi-solid Process[J]. Special Casting & Nonferrous Alloys, 2007,(8):583-585. DOI：

摘要

使用半固态复合工艺

制备了纳米SiC颗粒增强AM60镁合金材料。利用光学显微镜、布氏硬度计和MTS材料试验机等设备研究了纳米SiC颗粒对镁合金的显微组织、力学性能和硬度的影响。结果表明

在镁合金中添加纳米SiC颗粒能够细化其组织

提高材料的综合力学性能。当纳米颗粒加入量（体积分数）为0.1%时

镁合金的综合性能达到最好

屈服强度、抗拉强度和伸长率分别较未添加纳米颗粒的镁合金提高了56.9%、19.2%和69.3%

其硬度和冲击功也分别提高了16.4%和18.8%。同时

探讨了纳米SiC颗粒对镁合金的强韧化机理。

Abstract

The SiC nano-particle reinforced AM60 magnesium alloys were fabricated by the semi-solid process. The effects of SiC nano-particles on microstructure and mechanical properties of AM60 alloy have been investigated by optical microscope

Brinell hardness tester and MTS material testing machines etc. The results reveal that the microstructure and mechanical properties of the AM60 magnesium alloy can be improved with the addition of SiC particles. With 1% SiC nano-particles addition

the optimized mechanical properties of the alloy can be observed

whose yield strength

tensile strength and elongation are improved by 56.9%

19.2% and 69.3% respectively

and whose hardness and impact energy are increased by 16.4% and 18.8%

respectively

compared with those of the original alloy. The mechanism of strengthening and toughening of magnesium alloys containing SiC nano-particles are also approached.