ZL109铝合金及其复合材料干滑动磨损表面及亚表面的观察与分析

稀有金属材料与工程, 2004, 33(2): 207-212.

ZL109铝合金及其复合材料干滑动磨损表面及亚表面的观察与分析

杜军 ^1, , 刘耀辉 ^2, , 朱先勇 ^3, , 于思荣 ^4,

1.吉林大学,吉林,长春,130025;华南理工大学机械工程学院,广东,广州,510641

2.吉林大学,吉林,长春,130025

3.吉林大学,吉林,长春,130025

4.吉林大学,吉林,长春,130025

基金项目: 吉林省科技厅科研项目(963543)

关键词：金属基混杂复合材料 , 干滑动摩擦磨损 , 磨损机制

Observations and Analysis of Worn Surface and Subsurface of ZL109 Aluminum Alloy and Its Composites in Dry Sliding Friction and Wear

利用预制体挤压浸渗法分别制备了Al2O3或C短纤维单一增强以及两者混杂增强ZL109金属基复合材料,探讨了基体合金及其复合材料的干滑动摩擦磨损行为,并对其磨损表面及亚表面形貌进行了观察和分析.结果表明:C纤维在复合材料中起到一定的自润滑作用,Al2O3和C短纤维混杂增强复合材料的磨损率低于基体合金和单一纤维增强的复合材料.与基体相比,单一Al2O3增强复合材料从轻微磨损到急剧磨损的临界转变载荷明显提高,经C纤维混杂后,其临界载荷进一步提高.经磨损表面及亚表面的观察与分析表明:纤维增强对基体合金的磨损机制没有明显影响,在轻微磨损阶段,主要磨损机制为犁沟磨损和层离,亚表面分为3个区域:表层未脱落的剥离层、亚表面裂纹形成区以及未受影响区.发生严重磨损时,磨损机制转变为严重的粘着磨损,此时表层未脱落的剥离层遭到破坏.

参考文献

[1]	Prasad B K;Modi O P;Jha A K .The Effects of Alumina Fibres on the Sliding Wear of a Cast Aluminum Alloy[J].Tribology International,1994,27(03):153-158.
[2]	MOUSTAFA S F .Wear and Wear Mechanisms of Al/22%Al2O3f Composite[J].Wear,1995,185:189-195.
[3]	卢德宏,顾明元,施忠良,金燕苹,吴桢干.铝-石墨界面反应对石墨、碳化硅混杂增强铝基复合材料摩擦磨损性能的影响[J].稀有金属材料与工程,2000(01):35-38.
[4]	Tjong S C;Lau K C;Wu S Q .WearofAl-basedHybridCompositesContainingBNandSiCParticulates[J].Metallurgical and Materials Transactions,1999,30A:2551-2555.
[5]	刘耀辉;杜军;于思荣 et al.Effect of Alumina Fiber Volume Fraction on Wear Property of Al2O3f+Cf/ZL109 Hybrid Composites[J].摩擦学学报,2002,23(01):18-22.
[6]	N. Axen;I. M. Hutchings;S. Jacobson .A model for the friction of multiphase materials in abrasion[J].Tribology International,1996(6):467-475.
[7]	Yu S R;He Z M;Chen K .Dry Sliding Friction and Wear Behaviour of Fibre Reinforced Zinc-based Alloy Composites[J].Wear,1996,198:108-114.
[8]	Song J I;Han K S .Effect of Volume Fraction on Carbon Fibers on Wear Behavior of Al/Al2O3/C Hybrid Metal Matrix Composites[J].Computers and Structures,1997,39:309-318.
[9]	Nysten B;Issi J P .Composites Based on Thermally HyperConductive Carbon Fibred[J].Composites,1990,21:339-343.
[10]	Cowan RS;Winer WO.Friction Lubrication and Wear Techology[M].New York: ASM,1992:39-44.
[11]	How H C;Baker T N .Characterisation of Sliding Friction-induced Subsurface Deformation of Saffil-reinforced A16061 Composites[J].Wear,1999,232:106-115.
[12]	Li X Y;Tandon K N .Microstructure Characterization of Mechanically Mixed Layer and Wear Debris in Sliding Wear Oa an Al Alloy and an Al Based Composites[J].Wear,2000,245:148-161.
[13]	Suh N P .An Overview of the Delamination Theory of Wear[J].Wear,1977,44:1-16.

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网