系列α-Al<sub>2</sub>O<sub>3</sub>结构陶瓷的耐冲蚀磨损性能

张润理; 鲍崇高

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系列α-Al₂O₃结构陶瓷的耐冲蚀磨损性能

更新时间：2025-07-09

- 系列α-Al₂O₃结构陶瓷的耐冲蚀磨损性能
- Erosion-Wear Resistance of Series α-Al₂O₃ Structure Ceramics
- 西安交通大学学报 2010年44卷第5期页码：71-74
- 作者机构：
  
  西安交通大学材料科学与工程学院,西安,710049
- 作者简介：
- 基金信息：
  
  : 2009-09-28. 作者简介: 张润理(1981-),男,硕士生;鲍崇高(联系人),男,教授. 基金项目: 国家自然科学基金资助项目(50572087);中国博士后科学基金项目资助(2003033186)
- DOI：
  中图分类号： TG174.1
- 网络首发：2010-05-10，
  
  纸质出版：2010
- 稿件说明：
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张润理, 鲍崇高. 系列α-Al₂O₃结构陶瓷的耐冲蚀磨损性能[J]. 西安交通大学学报, 2010,44(5):71-74.

Erosion-Wear Resistance of Series α-Al₂O₃ Structure Ceramics[J]. 2010, 44(5): 71-74.
张润理, 鲍崇高. 系列α-Al₂O₃结构陶瓷的耐冲蚀磨损性能[J]. 西安交通大学学报, 2010,44(5):71-74. DOI：

Erosion-Wear Resistance of Series α-Al₂O₃ Structure Ceramics[J]. 2010, 44(5): 71-74. DOI：

摘要

以冲蚀磨损工况下的泵用材料Cr15Mo3高铬铸铁为对比材料

采用转盘式液-固双相流试验机研究了系列α-Al

结构陶瓷(90瓷、95瓷、99瓷)的耐冲蚀磨损性能及微观失效机制.结果表明:在不同磨粒硬度试验条件下

Cr15Mo3的冲蚀磨损率均比α-Al

结构陶瓷的高4～6倍

且随着磨粒硬度的增加

Cr15Mo3的冲蚀磨损率增加幅度更大; α-Al

结构陶瓷的冲蚀磨损体积随磨料含量的增加略有增加

但在相同磨粒硬度试验条件下相差不大

因此该工况下可使用90瓷或95瓷

从而提高应用材料的性价比; Cr15Mo3的微观失效有明显的方向性和腐蚀痕迹

主要以微切削、犁沟和冲蚀坑等形式为主

而α-Al

结构陶瓷的失效主要是晶界玻璃相失去

有少量冲蚀坑和晶粒剥落痕迹

迅速增加径向和横向断裂表面能是其主要耗能方式.

Abstract

Erosion resistance of series α-Al

ceramics is investigated by water slurry with different abrasive particles hardness on a liquid-solid dual phase erosion test machine. High chromium cast iron Cr15Mo3 for industrial pumps is taken as a reference material in the erosion-wear test. The erosion-wear failure mechanism of the test materials in slurry erosion is discussed. The result shows that the slurry erosion volume of Cr15Mo3 is 4 to 6 times larger than that of series α-Al

ceramics with the different abrasive particles hardness

and increases with the increasing abrasive particles hardness. The slurry erosion volume of series α-Al

ceramics s

lightly increases with the increasing volume fraction of α-Al

therefore the ceramics with 90% or 95% volume fraction of α-Al

may replace the one with 99% volume fraction of α-Al

in most cases to lower the material cost. It is observed by SEM that there exist obvious corrosive and erosive pits on the worn surface of Cr15Mo3 iron

while a little such pits and particle stripping-off pits on the worn surface of the α-Al

ceramics. The failure of the α-Al

ceramics is mainly due to losing the binding phase in crystal boundary. The major mode of energy consumption of α-Al

ceramics is rapidly increasing radial and transverse fracture surface energy.

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references

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Erosion-Wear Resistance of Series α-Al2O3 Structure Ceramics

DOI：

摘要

Abstract

关键词

Keywords

references

系列α-Al₂O₃结构陶瓷的耐冲蚀磨损性能

Erosion-Wear Resistance of Series α-Al₂O₃ Structure Ceramics