Influence of steel fibres on friction behaviours on speed, pressure and temperature

What is it about?

This work is to investigate the effect of different volume percentage (Vol.%) of steel fibre on the pressure, surface temperature and speed sensitivity behaviour during braking process as known brake effectiveness and to propose the best steel fibre Vol.% in the formulation. Three brake pads composed of three different steel fibre volume percentages (9, 18, 27 Vol. %) were fabricated through powder metallurgy route. The samples were subjected to hardness, porosity and coefficient of friction (COF) using Rockwell hardness tester, hot bath and brake inertia dynamometer, respectively.

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Why is it important?

The sample with 18 Vol.% of steel fibre was found to be the best formulation which produced acceptable COF; less sensitive to temperature, pressure and speed during braking process; and better wear resistance of brake pad as well as the rotor.