Tribological behavior of ZrB2-SiC ceramics during dry sliding on steel

Purpose Previous publications were mainly focused on the effect of textures under lubrication. Under dry sliding, area ratio of surface texturing (pit area ratio) and diameter of pit affect the tribological behavior. This paper aims to investigate the effect of laser surface texturing on tribological behavior of nodular cast iron under dry sliding. Design/methodology/approach Pit-like textures with different diameters and spaces were fabricated by laser on nodular cast iron (QT600-3). Using nodular cast iron (QT600-3) as the disc specimen and resin matrix composites (UCV018) as the pad specimen, the tribological test was performed with pin-on-disk reciprocating tribo-tester. Findings The coefficient of friction (COF) of the non-textured specimen was larger than that of the textured one. For the same pit diameter, a larger pit area ratio induced a slight decrease of COF, while wear volume decreased significantly. The pit diameter induced a slight decrease of COF as the pit area ratio, but its effect was weaker. Practical implications The experimental studies will help to improve the brake system such as structure modeling of brake disc. Predicting the performance and life of the brake disc in vehicle based on tribological behavior checked in test, it was proved that pit-like texture had application value in vehicle brake system. Originality/value This paper showed that the effect of pit area ratio on friction and wear was greater than that of pit diameter. The experimental results will be useful to the design on safety brake disc.

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Tribological Behavior of Al–20Si–5Fe–2Ni Alloy at Elevated Temperatures Under Dry Sliding

Journal of Tribology ◽

10.1115/1.4038438 ◽

2018 ◽

Vol 140 (3) ◽

Cited By ~ 3

Author(s):

Hui Tan ◽

Jun Cheng ◽

Shuai Wang ◽

Shengyu Zhu ◽

Yuan Yu ◽

...

Keyword(s):

Elevated Temperatures ◽

Tribological Behavior ◽

Wear Behavior ◽

Dry Sliding Wear ◽

Dry Sliding ◽

Sintered Alloy ◽

Aisi 52100 ◽

Potential Applications ◽

Aisi 52100 Steel ◽

Worn Surface

Wear-resistant aluminum alloys have enormous potential applications. In this paper, the Al–20Si–5Fe–2Ni alloy was fabricated by hot-pressed sintering, and its dry sliding wear behavior was investigated from 25 °C to 500 °C sliding against Al2O3 ceramic and AISI 52100 steel. The microstructure, phase, high temperature hardness, and worn surface of the sintered alloy were examined. The results indicate that the uniform distribution of Si particles and Al5FeSi intermetallic in the Al matrix contribute to its superior tribological properties. Additionally, the correlation of the tribological behavior of the alloy with the sliding testing conditions was studied, and its wear mechanism was discussed.

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Tribological Behavior of Novel Ti3SiC2(Natural Nanolaminates)-Reinforced Epoxy Composites during Dry Sliding

Tribology Transactions ◽

10.1080/10402004.2014.996308 ◽

2015 ◽

Vol 58 (3) ◽

pp. 560-566 ◽

Cited By ~ 14

Author(s):

S. Gupta ◽

T. Hammann ◽

R. Johnson ◽

M. F. Riyad

Keyword(s):

Tribological Behavior ◽

Epoxy Composites ◽

Dry Sliding

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