Brass, aluminium, and mild steel sliding against stainless steel under dry conditions

Brass, aluminium, and mild steel sliding against
stainless steel under dry conditions

In the current study, wear and frictional performances of brass,
aluminium, and mild steel metals are investigated under different operating
parameters, i.e., sliding durations (0–10 km) and applied loads (0–50 N) against
stainless steel counterface under dry contact conditions. The experiments were
performed using block on ring machine. Scanning electron microscopy was
used to examine the damage features on the worn surface and categorise the
wear mechanism. Thermal imager was used to understand the thermal loading
in the interface during the rubbing process. The debris was collected and
observed using the scanning electron microscopy. The results revealed that the
operating parameters influence the wear and frictional behaviour of all the
metals. Brass metal exhibited better wear and frictional behaviour compared to
others. Three different wear mechanisms were observed, i.e., two body
abrasion (brass), three body abrasion (aluminium), and adhesive (mild steel).

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