Papers by Pranav Dev Srivyas
Tribological Characterization of Lightweight Hybrid Aluminium Composite Under Lubricated Sliding Condition
Lightweight advance composites are the new emerging class of the engineering materials that are r... more Lightweight advance composites are the new emerging class of the engineering materials that are rapidly replacing a large category of conventional material for various aerospace, automotive, structural industrial and marine applications because of excellent tribological as well as mechanical properties. The scope and objectives are to investigate tribological properties of the hybrid aluminium composite under lubricated sliding conditions. In this concern, lightweight aluminium hybrid composite is fabricated using non-conventional spark plasma sintering (SPS) route. The tribological behaviour of hybrid composite sample is examined using a ball-on-disc reciprocating universal tribometer configuration for 120 m sliding distance for variable load 10–80 N for 2 mm stroke and reciprocating frequency of 30 Hz. Wear test sliding distance is also performed for the (90–450 m) sliding distance. Two variable lubricants, i.e. Base PAO-4 lubricant and commercial SAE2W50 lubricant, are used in th...
Submerged arc welding (SAW) is known for high reliability, smooth finishing and good quality weld... more Submerged arc welding (SAW) is known for high reliability, smooth finishing and good quality weld formation especially for welding of heavy pipe lines and boilers and is used widely throughout the world. It is a process of selecting proper process parameters such as welding temperature, bead width, weld timing etc. The flux used in this process, while transportation and handling, gets converted into dust like fine particles called as slag, which if not removed before using the flux in welding process, can result into many defects in the joint made by submerged arc welding, and dumping the waste flux into open air can cause pollution too. Some of the defects in submerged arc welding include porosity, surface pitting improper penetration, arc blows, undercut, slag sticking etc. A study to control the various costs involved in submerged arc welding such as welding cost, disposal of the waste flux and also reduction of pollution due to waste flux has been done. This study also encompass...
May 2017 Article-4.4
Pranav Dev Srivyas Sahil Singh Dr. Balbir Singh Abstract Pumps are considered to be one of the mo... more Pranav Dev Srivyas Sahil Singh Dr. Balbir Singh Abstract Pumps are considered to be one of the most important elements in many industrial sectors, plants and also in the manufacturing units. The pumps are the key elements in the agriculture, food industry, oil industries, gas industries, water treatment plants, paper industries, sewage, chemical plants, furnaces, reactors, heat exchangers, hydraulic power service, mines, pulp industry and so on. As the use of the pump is on the massive scale, there are few problems that will occur in the pumps leads to failure. Unexpected failure of the pumps become more costly due to the interruption in process and further cost are incurred in terms of replacement and repair. Failure and unscheduled breakdown in the pumps leads to the loss of the production and subsequently loss in the revenue in the industries and production units. Over the recent years, the significance of maintenance and the maintenance management is grown up within the manufact...
Friction losses and wear losses are the main failure reasons in the internal combustion (IC) engi... more Friction losses and wear losses are the main failure reasons in the internal combustion (IC) engine components i.e., cylinder liner and piston. So, it demands lightweight self-lubricating low friction and wear-resistant materials to increase the efficiency and reduce the emission issue of the IC engine. In this concern, tribological tests are performed on self-lubricating aluminium composites samples reinforced with 6 wt.% of γ-Al2O3 and Graphene Nano Platelets (GNP) with varying concentration (0.5 wt.% 5 wt.%), using ball-on-disc tribo-configuration under dry sliding conditions. The scope of this study is to investigate the anti-friction and anti-wear properties of GNP as reinforcement in the hybrid nanocomposite. The hybrid nanocomposite samples are fabricated using Spark Plasma Sintering (SPS) fabrication route. From the results, it is reported that friction and wear reduction percentage is 37.43 % and 51.64 %, respectively for the hybrid nanocomposite with 5 wt. % GNP. It is att...
Graphene: An Effective Lubricant for Tribological Applications
Lecture Notes in Mechanical Engineering
The objective of this review paper is to investigate the basic tribological behavior of graphene,... more The objective of this review paper is to investigate the basic tribological behavior of graphene, the first existing 2D material and to enhance its performance as a self-lubricating material. The significant and prospective impact of this new class of material was first acknowledged in 2004 by Geim and Konstantin Novoselov who were awarded Noble prize for their discovery and development of graphene in 2010. In previous decades, reducing friction coefficient and wear-related failures in mechanical systems has gained serious attention due to friction’s adverse impacts on effective life and durability of the mechanical systems. To reduce the friction and wear mechanism in the moving mechanical systems, the research proceeds in the development of novel materials, coatings, and lubricants (both liquid and solid) which have the potential of reducing friction and wear in materials. Despite intense research and development efforts on graphene for numerous existing as well as future applications, its tribological potential as a lubricant is still relatively uncharted. In this review, we provide relevant research of recent tribological studies on graphene especially, its use as a self-lubricating solid or as an additive for lubricating oils. A comprehensive review is provided with the aim to analyze such properties of graphene.
Tribological Characterization of Iron-Based Self-Lubricating Composite under Dry Sliding Conditions
Journal of The Institution of Engineers (India): Series D
In present experimentation study, iron (Fe) matrix-based self-lubricating composite samples were ... more In present experimentation study, iron (Fe) matrix-based self-lubricating composite samples were prepared using powder metallurgy process. Tribological as well as mechanical properties of iron molybdenum-based composites with varied content of barium fluoride as solid lubricant were studied under different experimental conditions. The influence of applied normal load (NL) and sliding distance (SD) on friction and wear behaviour was studied. Dry sliding tribological tests were performed on reciprocating ball-on-disc tribometer. From the results, it was reported that hardness and compressive strength were higher for base composition compared to the composites samples. Introduction of barium fluoride increases the tribological properties of the composite. Coefficient of friction (COF) and wear volume (WV) were least for 8 wt% solid lubricant sample. Self-lubricating behaviour of the BaF2 reinforcement in the matrix material was attributed to enhancement in friction and wear properties of the composite.
SN Applied Sciences
In most of the studies, the tribopair as well as tribo-components interfaces are lubricated using... more In most of the studies, the tribopair as well as tribo-components interfaces are lubricated using different lubricating oil or solid tribofilms. In the present study, the anti-friction and anti-wear performance of the tribopair is improved using nano-Aluminium Oxide (Al 2 O 3) and Graphene Nano Platelets (GNP) as reinforcement for composite and additive for lubricant respectively. Composite material and nano lubricants have attracted the interest of many researchers around the globe to enhance the life, durability and to reduce the friction and wear losses of mechanical components. Hence the objective of this study is to provide an insight to friction and wear reduction behavior of n-Al 2 O 3 and GNP from the tribological aspect. The samples are fabricated using Spark Plasma Sintering (SPS) rapid fabrication route and their tribological properties are determined against chromium-plated-chrome-steel under dry and wet conditions at room temperature using universal reciprocating tribometer. From the results, it is reported that composite samples with (PAO-4 + 0.5 wt% GNP + OA) nano-lubricant exhibit excellent tribological properties. This reduction is friction and wear is attributed to the hard phase ceramic reinforcements and nano-additive in lubricant that provides excellent tribological performance as well as Oleic Acid (OA) which help to improve the dispersion stability of the nano particles in the lubricating oil. Different surface characterization tools i.e. Optical Microscopy, Scanning Electron Microscopy, Electron Dispersion Spectroscopy, 3D surface profilometer are used in this study to understand the wear and lubrication mechanism after tribological testing.
Friction and Wear Characterization of Spark Plasma Sintered Hybrid Aluminum Composite Under Different Sliding Conditions
Journal of Tribology
Friction and wear behaviors of hybrid aluminum matrix self-lubricating nanocomposite, containing ... more Friction and wear behaviors of hybrid aluminum matrix self-lubricating nanocomposite, containing varying amount of nano-aluminum oxide (Al2O3) and graphene nanoplatelet (GNP) particles were investigated under dry and boundary lubrication sliding conditions. All the specimens were prepared by ultrasonic probe mixing followed by high-energy mechanical ball milling and spark plasma sintering fabrication route. The objective of this present study is to determine the tribological behavior of GNP as nanoreinforcement under dry and wet lubricating conditions. The wear test was carried out at room temperature on a ball-on-disc reciprocating tribometer with a contact load of 5 N, a frequency of 30 Hz, a stroke of 2 mm, and a sliding distance of 120 m. The chromium-plated chrome steel ball is used as the counter body for tribo-testing. From the results, it has been observed that GNP, as the solid lubricant reinforcement, reduces the friction by 25.33% and 68.14% under dry and wet lubricating ...
Nano lubrication behaviour of Graphite, h-BN and Graphene Nano Platelets for reducing friction and wear
Materials Today: Proceedings
Tribological behaviour of nano additive based PAO lubricant for eutectic Al-Si alloy-chromium plated chrome steel tribopair
Materials Today: Proceedings
Study of Various Maintenance Approaches Types of Failure and Failure Detection Techniques Used in Hydraulic Pumps: A Review
Industrial Engineering Journal, Jan 10, 2018
Advances in Tribology
Advanced composites are the materials of the new generation. Hence, the focus of the study is to ... more Advanced composites are the materials of the new generation. Hence, the focus of the study is to determine the tribological properties of the eutectic Al-Si alloy reinforced with (2, 4, 6, 8, and10 wt. %) of n-Al2O3 against chrome-plated steel ball under dry sliding conditions. The novelty of this work is the fabrication of the composite sample with this elemental composition, which is not done before. Spark plasma sintering (SPS) nonconventional fabrication method is used to fabricate advanced composite samples. Friction coefficient (COF) and wear rate of the composite samples were studied under high load, varying from 50 N to 300 N, using the ball-on-disc tribometer configuration, with other parameters such as stroke, frequency, sliding distance, and sliding velocity remaining constant at 2 mm, 30 Hz, 120 meter, and 0.120 m/s, respectively. Reduction in wear volume for the advanced composite was reported in the range 15.45–44.58% compared to the base alloy (eutectic Al-Si alloy). ...
Effect of load on the friction and wear properties of aluminum hybrid composite/chromium plated chrome steel tribopair under boundary lubrication conditions
Materials Today: Proceedings
Abstract Friction and wear loss are the main reason that contribute to the failure in the IC engi... more Abstract Friction and wear loss are the main reason that contribute to the failure in the IC engine components. This emerges the demand for the light weight, low friction and wear resistant material to enhance the efficiency and to reduce the emission problem in the IC engine components. In this concern, tribological test are performed on the hybrid aluminium matrix composites (Al–Si/Al2O3/GNP) composite fabricated using non-conventional rapid Spark Plasma Sintering (SPS) against chromium plated chrome steel ball under boundary lubrication conditions at room temperature using Ball-on-disc tribometer configuration. Friction & wear studies are conducted under high loading conditions ranging 100 N–300 N with 120 m sliding distance, 30 Hz frequency, 2 mm stroke length. From the study, it is reported that coefficient of friction (COF) as well as the wear significantly reduces; attributed to SAE20W50 engine oil lubricant with GNP Nano particles used as the secondary reinforcement (solid lubricant) in the hybrid composite. Ultra-mild adhesion and abrasion are the dominating wear mechanisms for the hybrid composite samples.
Tribological characterization of hybrid aluminum composite under boundary lubricating sliding conditions
Materials Today: Proceedings
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Papers by Pranav Dev Srivyas