Study on the Friction Factor and High-Temperature Friction Resistance of Semi-Metal Frictional Materials

Abstract:

The orthogonal experimental study is carried out to study the Incorporation of different proportion of functional components and the effect on tribological performance among semi-metallic friction materials. A test is conducted for each sample on XXD-MSM constant speed tester in accordance with Brake Linings for Automobiles (GB5763-2008). The friction factor and high-temperature abrasion resistance properties are evaluated along with the obtaining of optimal formula, and the mechanism of affecting the tribological properties is analyzed on the worn surfaces by using a scanning electron microscope (SEM). The study results indicate that the high-temperature friction stability could be deeply affected by the adequate content of steel fiber, Kevlar pulp, potassium hexatitanate whisker and cashew nut shell. The mechanism of High-temperature tribological behaviors are the thermal decompositions. The thermal decomposition of organic matter might greatly weakened the bonding effect. The thermal decomposition of tribo-film fall off as lamellar chip under the effect of friction stress. The addition level of nanoparticles is 3%, the sample’s tensile strength, tensile strength, hardness index and noise level are better. If the modified resin is further applied, this formula can be close to the index of excellent Chinese industrial product JF04-20.

• Periodical: Key Engineering Materials (Volume 693)
• Pages: 629-637
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.693.629
• Online since: May 2016
• Authors: Yue Wang, Yuan Kang Zhou, Hua Wei Nie
• Keywords: Friction Factor, High Temperature, Orthogonal Experiment, Semi-Metal Frictional Material, Wear Rate

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