80
A. Meher and M. M. Mahapatra
Fig. 2 a The wear setup, and b high magnification micrograph showing morphology of the abrasive
surface. (Color figure online)
The wear test of both the magnesium alloy (RZ5) and magnesium alloy composite
[RZ5/10 wt.% TiB 2 ] was carried out at a constant sliding speed of 2 m/s and at
an applied load of 10, 20 and 30 N and at a sliding distance of 1000, 2000 and
3000 m. For each testing condition, three sets of tests were conducted and the
average was calculated along with standard deviation. Morphology of the worn
surface subsequent to continuous sliding on the abrasive surface was examined using
a studied using a field emission scanning electron microscope (FESEM) [Model:
ZEISS MERLIN Compact]. To further investigate the wear morphology, surface
optical profiler [Model: Wyko NT9100] was used.
Results and Discussion
The wear behavior of both the chosen magnesium alloy (RZ5) and magnesium alloy
composite [RZ5/10 wt.% TiB 2 ] was investigated using the pin-on-disc wear testing
setup. During the abrasive wear test, presence of silicon carbide (SiC) particles on the
contact surface penetrates into the soft magnesium alloy (RZ5) matrix. Addition of
ceramic reinforcements to the soft metal matrix contributes to enhancing hardness of
the composite material and prevents the silicon carbide (SiC) particles penetration.
In this study, the wear loss and coefficient of friction (COF) of both the magnesium
alloy and magnesium alloy-based metal matrix composite were analysed using a
variation of the applied load and sliding distance.
A. Meher and M. M. Mahapatra
Fig. 2 a The wear setup, and b high magnification micrograph showing morphology of the abrasive
surface. (Color figure online)
The wear test of both the magnesium alloy (RZ5) and magnesium alloy composite
[RZ5/10 wt.% TiB 2 ] was carried out at a constant sliding speed of 2 m/s and at
an applied load of 10, 20 and 30 N and at a sliding distance of 1000, 2000 and
3000 m. For each testing condition, three sets of tests were conducted and the
average was calculated along with standard deviation. Morphology of the worn
surface subsequent to continuous sliding on the abrasive surface was examined using
a studied using a field emission scanning electron microscope (FESEM) [Model:
ZEISS MERLIN Compact]. To further investigate the wear morphology, surface
optical profiler [Model: Wyko NT9100] was used.
Results and Discussion
The wear behavior of both the chosen magnesium alloy (RZ5) and magnesium alloy
composite [RZ5/10 wt.% TiB 2 ] was investigated using the pin-on-disc wear testing
setup. During the abrasive wear test, presence of silicon carbide (SiC) particles on the
contact surface penetrates into the soft magnesium alloy (RZ5) matrix. Addition of
ceramic reinforcements to the soft metal matrix contributes to enhancing hardness of
the composite material and prevents the silicon carbide (SiC) particles penetration.
In this study, the wear loss and coefficient of friction (COF) of both the magnesium
alloy and magnesium alloy-based metal matrix composite were analysed using a
variation of the applied load and sliding distance.