Effects of the Microgravity on Microstructure and Performance of Cu-SiC<sub>p</sub>/AZ91D Composites

Yu Ting; Wang Dongxin; Qin Chun; Yan Zhijie; Geng Guihong

doi:10.15980/j.tzzz.2018.10.019

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Effects of the Microgravity on Microstructure and Performance of Cu-SiC_p/AZ91D Composites
Vol. 38, Issue 10, Pages: 1112-1115(2018)
Published： 2018 ，
DOI： 10.15980/j.tzzz.2018.10.019

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[1]余挺,王东新,秦春,闫志杰,耿桂宏.微重力磁场对Cu-SiC_p/AZ91D复合材料组织及性能的影响[J].特种铸造及有色合金,2018,38(10):1112-1115.

Yu Ting, Wang Dongxin, Qin Chun, et al. Effects of the Microgravity on Microstructure and Performance of Cu-SiC_p/AZ91D Composites. [J]. Special Casting & Nonferrous Alloys 38(10):1112-1115(2018)
[1]余挺,王东新,秦春,闫志杰,耿桂宏.微重力磁场对Cu-SiC_p/AZ91D复合材料组织及性能的影响[J].特种铸造及有色合金,2018,38(10):1112-1115. DOI： 10.15980/j.tzzz.2018.10.019.

Yu Ting, Wang Dongxin, Qin Chun, et al. Effects of the Microgravity on Microstructure and Performance of Cu-SiC_p/AZ91D Composites. [J]. Special Casting & Nonferrous Alloys 38(10):1112-1115(2018) DOI： 10.15980/j.tzzz.2018.10.019.

摘要

在常规和电磁模拟微重力条件下制备Cu-SiC

/AZ91D复合材料

分析了复合材料的组织结构及相组成

并对其组织形成机理和抗摩擦磨损性能进行研究。结果表明

常规条件下制备的Cu-SiC

/AZ91D复合材料主要由α-Mg、β-Mg

和Mg

Si相组成

组织晶粒较AZ91D细小

其组织均匀性差;在电磁模拟微重力条件下

Cu-SiC

/AZ91D复合材料组织转变为α-Mg和Mg

Si相

组织均匀性显著改善

同时晶粒得到进一步细化

硬度(HV

4.9

)增大至80.46。试验表明

模拟微重力条件制备的Cu-SiC

/AZ91D复合材料具有更低的摩擦因数和磨损率。

Abstract

Cu-SiC

/AZ91Dcomposites were prepared under normal conditions and microgravity magnetic fields

and the structure and phase composition of the composites were analyzed.Microstructure’s formation mechanism and anti-friction properties were also analyzed.The results show that the composites prepared under normal conditions are mainly composed ofα-Mg

β-Mg

and Mg

and the grain size is the smaller than that of AZ91D

however its homogeneity is low.Under the simulated microgravity conditions

Cu-SiC

/AZ91Dcomposites are mainly composed ofα-Mg and Mg

Si phases

and the microstructure homogeneity is improved significantly with the further refinement of the grain

and microhardness is increased to about HV

4.9

80.46.The frictional wear test shows that the Cu-SiC

/AZ91Dcomposites prepared by simulated microgravity conditions have the lower friction coefficient and wear rate.

关键词

微重力电磁场Cu-SiCp/AZ91D摩擦磨损性能显微硬度

Keywords

Microgravity Electromagnetic FieldCu-SiCp/AZ91DFriction and Wear PerformanceMi crohardness

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Effects of the Microgravity on Microstructure and Performance of Cu-SiCp/AZ91D Composites

DOI： 10.15980/j.tzzz.2018.10.019

摘要

Abstract

关键词

Keywords

references

Effects of the Microgravity on Microstructure and Performance of Cu-SiC_p/AZ91D Composites