sandeep khatkar - Academia.edu (original) (raw)

Papers by sandeep khatkar

Magnesium due to its lightweight gain tremendous interest of automobile industries from the past ... more Magnesium due to its lightweight gain tremendous interest of automobile industries from the past few decades. To achieve weight reduction without degrading its mechanical properties is a major challenge for engineers and researchers. Till now a lot of work has been done on various magnesium alloys but conventional magnesium alloys (AZ and AM series) are unable to replace aluminium alloys in powertrain applications due to high creep resistant of aluminium alloys. So there is a need of some modifications in magnesium for its utilization in power train applications. Modified magnesium alloys and MMCs (metal matrix composites) are two main alternatives to make a way for magnesium into powertrain application. This article reviews recent developments in the magnesium alloys and magnesium composites for powertrain or high-temperature applications.

Lecture Notes on Multidisciplinary Industrial Engineering, 2021

From recent decades extensive research is going on lightweight magnesium and its alloys for appli... more From recent decades extensive research is going on lightweight magnesium and its alloys for applications in medical science. Due to good biocompatibility and reasonable mechanical strength (similar to bone tissue), magnesium and its alloys are potential candidates for biomedical applications as biodegradable implant materials. However, poor corrosion rate and creep resistance of magnesium alloys are major limitations in its wider application for biomedical applications. Development of Magnesium (Mg) metal matrix composites (MMCs) reinforced with bioceramic particles can be sought as a solution to the above challenge. This review gives the comprehensive details of Magnesium (Mg) and its alloys along with the different reinforcement used to fabricate Mg MMCs, emphasizing on their method of fabrication and their mechanical and corrosive properties.

International Journal of Surface Engineering and Interdisciplinary Materials Science, 2022

This article statistically investigates the effect of various parameters such as material factors... more This article statistically investigates the effect of various parameters such as material factors: silicon carbide (SiC) reinforcement, graphite (Gr) reinforcement and mechanical factors: normal load, sliding distance and speed on the sliding wear rate of vacuum stir cast self-lubricating AZ91D-SiC-Gr hybrid magnesium composites. The sliding wear tests have been performed on pin-on-disc tribometer at 10-50N loads, 1-3m/s sliding speed and 1000-2000m sliding distance. It has been examined that hybrid composites yielded improved wear resistance with reinforcement of SiC and solid lubricant graphite. ANOVA and signal-to-noise ratio investigation indicated that applied load was the most critical factor influencing the wear rate, followed by sliding distance. Further, the AZ91D/5SiC/5Gr hybrid composite has exhibited the best wear properties. From the SEM and EDS analysis of worn surfaces, delamination was confirmed as the dominant wear mechanism for AZ91D-SiC-Gr hybrid composites.

Silicon, 2020

This article statistically investigates the effect of various parameters such as material factors... more This article statistically investigates the effect of various parameters such as material factors: silicon carbide (SiC) fraction, graphite (Gr) fraction and mechanical factors: normal load, sliding distance and speed on the sliding wear rate of self-lubricating AZ91D-SiC-Gr hybrid magnesium composites. The self-lubricating hybrid composites were fabricated using advanced vacuum assisted stir casting process. The sliding wear tests have been performed under dry conditions on pin-on-disc tribometer at 10-50 N loads, 1-3 m/s sliding speed and 1000-2000 m sliding distance. It has been examined that hybrid composites yielded improved wear resistance with reinforcement of SiC and solid lubricant graphite. ANOVA and signal-to-noise ratio investigation indicated that applied load was the most critical factor influencing the wear rate of fabricated hybrid composites followed by sliding distance. Further, the AZ91D/5SiC/5Gr hybrid composite has exhibited the best wear properties. From the SEM and EDS analysis of worn surfaces, delamination was confirmed as the dominant wear mechanism for AZ91D-SiC-Gr hybrid composites.

Silicon, 2020

In present research AZ91D/SiC composites were developed using advanced vacuum assisted stir casti... more In present research AZ91D/SiC composites were developed using advanced vacuum assisted stir casting process. The tribological properties of AZ91D/SiC composites under dry, oil and nanofluids lubricating conditions were investigated. The nanofluids were prepared by adding the silicon carbide (SiC) nanoparticles to the soluble oil with different weight percentages (1 wt.%, 1.5 wt.%, 2.0 wt.%) for experimentation. The mixing of nanoparticles with base fluid improves the tribological and thermal properties of fluids as the nanoparticles possess higher thermal conductivity than base fluids. The thermal conductivity of SiC nanofluids was evaluated. The wear surfaces under different lubricating conditions (dry, oil and nanofluids) were also analyzed with FESEM. The findings of the study reveal that there was a remarkable enhancement in tribological properties (wear and coefficient of friction) when SiC nanoparticles were added to soluble oil. Furthermore, the selected samples were analyzed using energy-dispersive X-ray spectroscopy (EDS), scanning electron microscope (SEM).

Advances in Intelligent Systems and Computing, 2020

Magnesium due to its lightweight gain tremendous interest of automobile industries from the past ... more Magnesium due to its lightweight gain tremendous interest of automobile industries from the past few decades. To achieve weight reduction without degrading its mechanical properties is a major challenge for engineers and researchers. Till now a lot of work has been done on various magnesium alloys but conventional magnesium alloys (AZ and AM series) are unable to replace aluminium alloys in powertrain applications due to high creep resistant of aluminium alloys. So there is a need of some modifications in magnesium for its utilization in power train applications. Modified magnesium alloys and MMCs (metal matrix composites) are two main alternatives to make a way for magnesium into powertrain application. This article reviews recent developments in the magnesium alloys and magnesium composites for powertrain or high-temperature applications.

Lecture Notes on Multidisciplinary Industrial Engineering, 2021

From recent decades extensive research is going on lightweight magnesium and its alloys for appli... more From recent decades extensive research is going on lightweight magnesium and its alloys for applications in medical science. Due to good biocompatibility and reasonable mechanical strength (similar to bone tissue), magnesium and its alloys are potential candidates for biomedical applications as biodegradable implant materials. However, poor corrosion rate and creep resistance of magnesium alloys are major limitations in its wider application for biomedical applications. Development of Magnesium (Mg) metal matrix composites (MMCs) reinforced with bioceramic particles can be sought as a solution to the above challenge. This review gives the comprehensive details of Magnesium (Mg) and its alloys along with the different reinforcement used to fabricate Mg MMCs, emphasizing on their method of fabrication and their mechanical and corrosive properties.

International Journal of Surface Engineering and Interdisciplinary Materials Science, 2022

This article statistically investigates the effect of various parameters such as material factors... more This article statistically investigates the effect of various parameters such as material factors: silicon carbide (SiC) reinforcement, graphite (Gr) reinforcement and mechanical factors: normal load, sliding distance and speed on the sliding wear rate of vacuum stir cast self-lubricating AZ91D-SiC-Gr hybrid magnesium composites. The sliding wear tests have been performed on pin-on-disc tribometer at 10-50N loads, 1-3m/s sliding speed and 1000-2000m sliding distance. It has been examined that hybrid composites yielded improved wear resistance with reinforcement of SiC and solid lubricant graphite. ANOVA and signal-to-noise ratio investigation indicated that applied load was the most critical factor influencing the wear rate, followed by sliding distance. Further, the AZ91D/5SiC/5Gr hybrid composite has exhibited the best wear properties. From the SEM and EDS analysis of worn surfaces, delamination was confirmed as the dominant wear mechanism for AZ91D-SiC-Gr hybrid composites.

Silicon, 2020

This article statistically investigates the effect of various parameters such as material factors... more This article statistically investigates the effect of various parameters such as material factors: silicon carbide (SiC) fraction, graphite (Gr) fraction and mechanical factors: normal load, sliding distance and speed on the sliding wear rate of self-lubricating AZ91D-SiC-Gr hybrid magnesium composites. The self-lubricating hybrid composites were fabricated using advanced vacuum assisted stir casting process. The sliding wear tests have been performed under dry conditions on pin-on-disc tribometer at 10-50 N loads, 1-3 m/s sliding speed and 1000-2000 m sliding distance. It has been examined that hybrid composites yielded improved wear resistance with reinforcement of SiC and solid lubricant graphite. ANOVA and signal-to-noise ratio investigation indicated that applied load was the most critical factor influencing the wear rate of fabricated hybrid composites followed by sliding distance. Further, the AZ91D/5SiC/5Gr hybrid composite has exhibited the best wear properties. From the SEM and EDS analysis of worn surfaces, delamination was confirmed as the dominant wear mechanism for AZ91D-SiC-Gr hybrid composites.

Silicon, 2020

In present research AZ91D/SiC composites were developed using advanced vacuum assisted stir casti... more In present research AZ91D/SiC composites were developed using advanced vacuum assisted stir casting process. The tribological properties of AZ91D/SiC composites under dry, oil and nanofluids lubricating conditions were investigated. The nanofluids were prepared by adding the silicon carbide (SiC) nanoparticles to the soluble oil with different weight percentages (1 wt.%, 1.5 wt.%, 2.0 wt.%) for experimentation. The mixing of nanoparticles with base fluid improves the tribological and thermal properties of fluids as the nanoparticles possess higher thermal conductivity than base fluids. The thermal conductivity of SiC nanofluids was evaluated. The wear surfaces under different lubricating conditions (dry, oil and nanofluids) were also analyzed with FESEM. The findings of the study reveal that there was a remarkable enhancement in tribological properties (wear and coefficient of friction) when SiC nanoparticles were added to soluble oil. Furthermore, the selected samples were analyzed using energy-dispersive X-ray spectroscopy (EDS), scanning electron microscope (SEM).

Advances in Intelligent Systems and Computing, 2020