Effects of Sliding Speed on Dry Sliding Wear Properties of Al2O3-SiO2（sf）/AZ91D Composites

Liu Guanjun; Ma Xiaoqin; Ma Lijie; Kong Xiaohong; Hu Zhigang; Yu Zetong

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Effects of Sliding Speed on Dry Sliding Wear Properties of Al₂O₃-SiO_2（sf）/AZ91D Composites
Vol. 29, Issue 8, Pages: 745-747(2009)
Published： 2009 ，
DOI：

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[1]刘贯军,马孝琴,马利杰,孔晓红,胡志刚,余泽通.滑动速度对Al_2O_3-SiO_(2(sf))/AZ91D复合材料磨损性能的影响[J].特种铸造及有色合金,2009,29(08):745-747+684.

Liu Guanjun, Ma Xiaoqin, Ma Lijie, et al. Effects of Sliding Speed on Dry Sliding Wear Properties of Al₂O₃-SiO_2（sf）/AZ91D Composites. [J]. Special Casting & Nonferrous Alloys 29(8):745-747(2009)
[1]刘贯军,马孝琴,马利杰,孔晓红,胡志刚,余泽通.滑动速度对Al_2O_3-SiO_(2(sf))/AZ91D复合材料磨损性能的影响[J].特种铸造及有色合金,2009,29(08):745-747+684. DOI：

Liu Guanjun, Ma Xiaoqin, Ma Lijie, et al. Effects of Sliding Speed on Dry Sliding Wear Properties of Al₂O₃-SiO_2（sf）/AZ91D Composites. [J]. Special Casting & Nonferrous Alloys 29(8):745-747(2009) DOI：

摘要

以硅酸铝短纤维作为增强体

以磷酸铝作为预制体高温粘结剂

采用挤压浸渗法制备出硅酸铝短纤维体积分数分别为15%、20%、25%和30%的镁基复合材料。利用MM200磨损试验机

分别在10、20、30、40、50N的外加载荷及0.47m/s和0.94m/s速度条件下

与硬度（HRC）为53的20Cr对磨环在干磨条件下进行对磨

考察了滑动速度对硅酸铝短纤维增强AZ91D镁基复合材料试样磨损量的影响

并通过扫描电镜对试样摩擦表面进行了形貌观察和分析。结果表明

滑动速度的变化对复合材料试样磨损量的影响比对AZ91D基体合金试样磨损量的影响更大更复杂

这种影响趋势既因复合材料体积分数的变化而不同

同时取决于外加载荷的大小。

Abstract

Magnesium alloy matrix composites （MMCs） with volumetric fraction of 15%

20%

25% and 30% were prepared with the preform made of crystallized aluminum silicate short fibers as reinforcement and aluminum phosphate as binder by squeezing casting at high temperature. Dry sliding wear properties of the composites were tested by using MM200 wear tester （block-on-ring configuration） against a hardened alloy steel counterface with hardness of 53HRC under loads of 10

40 and 50N and sliding velocities of 0.47 and 0.92 m/s

and wear morphology of the specimens was observed by SEM （scanning electron microscope）. The results reveal that effects of sliding speed on wear rate of the composites are higher and more complex than on those of the AZ91D matrix alloy

which is closely related to not only volumetric fraction in the composites but also applied loads.

关键词

硅酸铝纤维AZ91D合金镁基复合材料滑动速度磨损量

Keywords

Aluminum Silicate FiberAZ91D Magnesium AlloyMagnesium Matrix CompositesSliding SpeedWear Rate

references

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Friction and Wear Properties of Al₂O₃-SiO_2（sf）/AZ91D Metal Matrix Composites

Effects of Processing Parameters on Uniform Distribution of SiC_p Particulate in SiC_p/AZ91 Magnesium Matrix Composites

Deformation Behavior of Semi-solid Magnesium Alloy

Optimization of Preparing Technology for SiCp/AZ61 Magnesium Matrix Composites

Development of the carbon fiber reinforced magnesium matrix composites fabricated by liquid metal infiltration