Surface Composite AA6061/SiC
Manufactured by Hole and Groove
Method Friction Stir Processing
Daulat Kumar Sharma , Harshadkumar H. Jadav, Naishadh P. Patel,
Devang Mahant, and Gautam Upadhyay
Abstract Ceramic reinforced aluminum-based surface composites have improved
hardness and wear properties. Friction stir processing (FSP) was preferred to manufacture aluminum-based surface composites containing silicon carbide (SiC) particles, in the current study. SiC particles were reinforced into the AA6061 matrix
by both hole and groove method FSP. The effect of the hollow cavity pattern used
for particle reinforcement before processing was studied on the mechanical and
wear performance of processed surface composites. Optical microscopy confirms
reinforcement particle distribution in the stir zone of processed surface composites.
Microhardness was tested through the processed surface composites cross sections to
study hardness distribution. Tensile test and pin-on-disk wear test in dry sliding conditions were also performed on surface composite samples. The test results exhibited
improved hardness and wear performance of processed surface composites compared
to parent metal due to homogeneous reinforcement of abrasive SiC particles in the
soft aluminum matrix. The surface composite sample developed by the hole method
has shown better hardness and wear behavior compared to the groove method sample,
credited to better particle distribution displayed by hole pattern. However, both the
surface composites showed decreased tensile strength may be due to the existence
of hard SiC particles in the soft aluminum matrix which may make matrix brittle.
Keywords Friction stir processing · Surface composites · AA6061 · SiC
D. K. Sharma (B) · H. H. Jadav · D. Mahant
Metallurgy Department, Government Engineering College, Gandhinagar 382028, India
e-mail: dksharma.met@gmail.com
D. K. Sharma · H. H. Jadav · N. P. Patel · D. Mahant · G. Upadhyay
Gujarat Technological University, Ahmedabad 382424, India
N. P. Patel
Metallurgy Department, L. E. College (Polytechnic), Morbi 363642, India
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2021
A. K. Parwani et al. (eds.), Recent Advances in Mechanical Infrastructure,
Lecture Notes in Intelligent Transportation and Infrastructure,
https://doi.org/10.1007/978-981-33-4176-0_11
133
Manufactured by Hole and Groove
Method Friction Stir Processing
Daulat Kumar Sharma , Harshadkumar H. Jadav, Naishadh P. Patel,
Devang Mahant, and Gautam Upadhyay
Abstract Ceramic reinforced aluminum-based surface composites have improved
hardness and wear properties. Friction stir processing (FSP) was preferred to manufacture aluminum-based surface composites containing silicon carbide (SiC) particles, in the current study. SiC particles were reinforced into the AA6061 matrix
by both hole and groove method FSP. The effect of the hollow cavity pattern used
for particle reinforcement before processing was studied on the mechanical and
wear performance of processed surface composites. Optical microscopy confirms
reinforcement particle distribution in the stir zone of processed surface composites.
Microhardness was tested through the processed surface composites cross sections to
study hardness distribution. Tensile test and pin-on-disk wear test in dry sliding conditions were also performed on surface composite samples. The test results exhibited
improved hardness and wear performance of processed surface composites compared
to parent metal due to homogeneous reinforcement of abrasive SiC particles in the
soft aluminum matrix. The surface composite sample developed by the hole method
has shown better hardness and wear behavior compared to the groove method sample,
credited to better particle distribution displayed by hole pattern. However, both the
surface composites showed decreased tensile strength may be due to the existence
of hard SiC particles in the soft aluminum matrix which may make matrix brittle.
Keywords Friction stir processing · Surface composites · AA6061 · SiC
D. K. Sharma (B) · H. H. Jadav · D. Mahant
Metallurgy Department, Government Engineering College, Gandhinagar 382028, India
e-mail: dksharma.met@gmail.com
D. K. Sharma · H. H. Jadav · N. P. Patel · D. Mahant · G. Upadhyay
Gujarat Technological University, Ahmedabad 382424, India
N. P. Patel
Metallurgy Department, L. E. College (Polytechnic), Morbi 363642, India
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2021
A. K. Parwani et al. (eds.), Recent Advances in Mechanical Infrastructure,
Lecture Notes in Intelligent Transportation and Infrastructure,
https://doi.org/10.1007/978-981-33-4176-0_11
133