ABRASIVE WEAR STUDY OF AA7075/ZrB2 REINFORCED COMPOSITES

被引:6
作者
Sharma, P. [1 ]
Sharma, N. [2 ,3 ]
Singh, G. [4 ]
Dabra, V. [1 ]
机构
[1] Panipat Inst Engn & Technol, Mech Engn Dept, Panipat 132102, India
[2] Maharishi Markandeshwar, Dept Mech Engn, Ambala 133207, Haryana, India
[3] Univ Johannesburg, Dept Mech & Ind Engn Technol, Johannesburg, South Africa
[4] Amity Univ, Amity Inst Technol, Noida 201313, UP, India
基金
英国科研创新办公室;
关键词
reinforced composites; microhardness; abrasive wear; wear resistance; DRY SLIDING WEAR; MECHANICAL-PROPERTIES; BEHAVIOR; NANOCRYSTALLINE; MICROSTRUCTURE; PARTICLES; EVOLUTION; TENSILE; AL2O3;
D O I
10.1007/s11148-020-00394-3
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
AA7075-xZrB(2) (x = 0, 5, 10, 15, and 20 wt.%) composites were manufactured by reacting potassium zirconium fluoride (K2ZrF6) and potassium tetrafluoroborate (KBF4) with molten AA7075 at 800 degrees C. The ZrB2 particles formed by the reaction were fairly uniformly distributed throughout the whole composite. The microhardness of the composites increased from 45 to 78 VHN with ZrB2 contents from 0 to 20 wt.%, respectively. The wear rate rose as the load and sliding distance increased and fell as the sliding speed increased. The material-removal mechanism of the composites was due to abrasive wear.
引用
收藏
页码:506 / 509
页数:4
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