86
A. Meher and M. M. Mahapatra
Fig. 6 Field emission scanning electron micrograph [FESEM] indicating wear surface morphology
of the magnesium alloy composite [RZ5/10 wt.% TiB 2 ] for the sliding distance of: a 1000 m, b,
d 2000 m, and c 3000 m. (Color figure online)
An earlier study carried out by Xiao and co-workers using the AZ91/TiB 2 composite
revealed that surface roughness increases with an increase in applied load; at the
same time, it decreased with an increase in sliding speed [25].
Conclusions
Abrasive wear behavior of the magnesium alloy (RZ5) and magnesium alloy in-situ
processed metal matrix composite [RZ5/10 wt.% TiB 2 ] was investigated using pinon-disc wear testing setup. The following conclusions are drawn from the present
study.
1. Addition of TiB 2 particles to the magnesium alloy (RZ5) helps to enhance the
wear resistance properties. The coefficient of friction decreases with the addition
of TiB 2 reinforcement.
2. The wear loss for both the magnesium alloy (RZ5) and magnesium alloy
composite [RZ5/10 wt.% TiB 2 ] increases with an increase in applied load and
sliding distance. But, with increase in the sliding distance the rate of wear
decreases due to the formation and presence of a protective oxide layer. The
coefficient of friction increases with an increase in sliding distance, whereas it
decreases with an increase in applied load.
A. Meher and M. M. Mahapatra
Fig. 6 Field emission scanning electron micrograph [FESEM] indicating wear surface morphology
of the magnesium alloy composite [RZ5/10 wt.% TiB 2 ] for the sliding distance of: a 1000 m, b,
d 2000 m, and c 3000 m. (Color figure online)
An earlier study carried out by Xiao and co-workers using the AZ91/TiB 2 composite
revealed that surface roughness increases with an increase in applied load; at the
same time, it decreased with an increase in sliding speed [25].
Conclusions
Abrasive wear behavior of the magnesium alloy (RZ5) and magnesium alloy in-situ
processed metal matrix composite [RZ5/10 wt.% TiB 2 ] was investigated using pinon-disc wear testing setup. The following conclusions are drawn from the present
study.
1. Addition of TiB 2 particles to the magnesium alloy (RZ5) helps to enhance the
wear resistance properties. The coefficient of friction decreases with the addition
of TiB 2 reinforcement.
2. The wear loss for both the magnesium alloy (RZ5) and magnesium alloy
composite [RZ5/10 wt.% TiB 2 ] increases with an increase in applied load and
sliding distance. But, with increase in the sliding distance the rate of wear
decreases due to the formation and presence of a protective oxide layer. The
coefficient of friction increases with an increase in sliding distance, whereas it
decreases with an increase in applied load.