A Critical Review of Measures for an Effective Application of Nano-Structured Coatings in Milling

Skordaris, G.; Bouzakis, K.‐D.; Kotsanis, T.; Charalampous, Paschalis

doi:10.24874/ti.2017.39.02.08

Cited by 6 publications

(8 citation statements)

References 11 publications

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“…Deviation sequence is performed after the normalization. The grey relational co-efficient results for the experimental layout are calculated as per (3) and grey relational grade (GRG) are calculated as per (4). A higher GRG shows that the result is very nearer to the ideal normalized value.…”

Section: Resultsmentioning

confidence: 99%

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Determination of Optimum Working Parameters for Multiple Response Characteristics of Worm Gear Box

Chothani*¹,

Maniya²

2019

IJRTE

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The reason for this task is to optimize the multiple response of single start worm gear using three working parameters to improve its performance. As the input torque and lubricant heating time are the most effective responses of worm gear box to reduce the no-load dependent losses, they are taken as the response parameters in this research. Taguchi Grey Relational Analysis (GRA) is the method used to determine the influence of type of lubricant, volume of lubricant and speed of worm gear on multiple responses (input torque & lubricant heating time) of worm gear. The specific test rig is developed based on direct torque measurement technique to measure the input torque and lubricant heating time of worm gear box. Experimental results have shown that the input torque and lubricant heating time can be improved effectively through Taguchi-Grey Relational Analysis. The result is validated using the Confirmation Test. ANOVA determines the important of parameters. It has been found that the type of lubricant and speed of worm gear are influential parameters for worm gear performance. By selecting these parameters, efficiency of the worm gearbox can be increased.

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Section: Resultsmentioning

confidence: 99%

“…Power losses in gearbox can be isolated into loaddependent power losses (LPS) and non-load dependent losses (NPS). LPS are mainly friction power losses of gear teeth and bearing and NPS are the churning power losses, windage power losses and shaft seals power losses [4].…”

Section: Introductionmentioning

confidence: 99%

Determination of Optimum Working Parameters for Multiple Response Characteristics of Worm Gear Box

Chothani*¹,

Maniya²

2019

IJRTE

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“…The most actual method to impedance corrosion dissolution of mild steel was the use of corrosion inhibitors. Corrosion inhibitors advantages are lying on the data that they demonstrate superior performance and comparatively low cost due to their economically applicable and simple feasibility behavior [4,5]. Organic molecules containing benzene rings, pi-bonds in addition to hetero-atoms such as nitrogen, phosphorous, sulfur and oxygen are considered to be efficient inhibitors for mild steel corrosion impedance.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Inhibition of Mild Steel in Strong Acid Environment by 4-((5,5-dimethyl-3-oxocyclohex-1-en-1-yl)amino)benzenesulfonamide

Al-Amiery¹,

Shaker²,

Kadhum³

et al. 2020

Tribol. Ind.

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Newsulfanilamide derivative namely 4- ((5,5-dimethyl-3oxocyclohexenyl)amino)benzenesulfonamide (DOBF) was synthesized and the chemical structure was elucidate using Nuclear Magnetic Resonance (NMR) and elemental analysis (CHN). The inhibition effects of a studied DOBF on the corrosion of mild steel in 1 M hydrochloric acid environment were investigated using electrochemical impedance spectroscopy (EIS), weight loss method and scanning electron microscopy (SEM). The synthesized inhibitor concentrations were 0.1 mM to 0.5 mM and the temperatures ranging from 303-333 K. Results showed that the inhibition occurs through adsorption of the inhibitor molecules on the metal surface. Electrochemical and weight loss techniques revealed that the tested DOBF act as superior inhibitor for acidic corrosion of mild steel and the efficiency increase with increasing concentrations. EIS results revealed that DOBF demonstrate the highest inhibition efficiency of 93.70 %, at a concentration of 0.5 mM. The adsorption of the investigated inhibitor obeys Langmuir's adsorption isotherm. Different thermodynamic parameters have been calculated and discussed. SEM confirmed the formation of a protective film on the surface. The investigated techniques are in good agreement to establish the using DOBF as corrosion inhibitor for mild steel in strong acid environment. It was found that the corrosion inhibition performance depends on the concentration of the DOBF and the solution temperature. Quantum chemical calculations have been done to correlate the electronic characteristics of the compounds with the corrosive inhibitive impact. The quantum calculations such as the HOMO, LUMO, energy gap (ΔE), atomic charges, dipole moment (μ), electron affinity (A), chemical hardness (η), softness (σ) electronegativity ( ), ionization potential (I), and fraction of electrons transferred (∆ ), were used to explain the mechanism of inhibition of DOBF molecules on the mild steel surface. Experimental and theoretical results are in good agreement.

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“…plain bearing is commonly used [1][2][3][4]. ZA alloys are observed as the excellent bearing RESEARCH materials as that of current materials like bronze brass, [1], bearing alloy [2] copper base alloy [3], cast iron [6] and SAE 65 bronze [7] owing to better wear resistance, high fatigue and tensile strength, small coefficient of friction, high hardness, light in weight, excellent load carrying capacity and corrosion resistance. However, these alloys suffer from some drawback like dimensional instability, small impact strength and ductility and poor performance at elevated temperature limits application of these alloys [5,8,28].…”

Section: Introductionmentioning

confidence: 99%

“…Tribological and mechanical characteristics of ZA alloys were enhanced by addition of zircon [18], garnet [19], glass fiber [20][21][22], Al2O3 [23], Titanium-Dioxide [24], TiC [25], graphite [26][27][28][29] and SiC. Graphite particle addition into ZA alloys significantly enhance ductility tensile and compressive strength, and Young's modulus, but reduce the hardness of metal matrix composite.…”

Section: Introductionmentioning

confidence: 99%

Study of Mechanical and Sliding Wear Behavior of Al-25Zn alloy/SiC/Graphite Novel Hybrid Composites for Plain Bearing Application

Ritapure¹,

Kharde²

2019

Tribol. Ind.

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In this investigations, sliding wear performance of Al-25Zn based novel hybrid composites added with fixed weight percentage of graphite (3 wt.%) and varying weight percentage of silicon carbide (10, 20 and 30 wt.%) was investigated for various process factors such as specimen temperature, applied load, sliding speed and sliding distance using a pin on disc with EN24 disc as per Taguchi L16 array. For similar test conditions, the composite with 10 wt.% of silicon carbide shows the highest wear resistance and tensile strength; whereas the composite with 20 wt.% of SiC shows highest hardness. The specimen temperature is recognized as the dominating parameter for the sliding wear performance of the materials. Artificial Neural network and Regression model developed was found competent for the forecasting of wear performance. Confirmation experiment conducted with the optimum parameter combination also confirmed the accuracy of developed model. The observed wear mechanism is abrasion and adhesion. The major mechanisms of abrasive wear are recognized as ploughing, micro cutting and delamination.

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A Critical Review of Measures for an Effective Application of Nano-Structured Coatings in Milling

Abstract: A B S T R A C T

Cited by 6 publications

References 11 publications

Determination of Optimum Working Parameters for Multiple Response Characteristics of Worm Gear Box

Determination of Optimum Working Parameters for Multiple Response Characteristics of Worm Gear Box

Corrosion Inhibition of Mild Steel in Strong Acid Environment by 4-((5,5-dimethyl-3-oxocyclohex-1-en-1-yl)amino)benzenesulfonamide

Study of Mechanical and Sliding Wear Behavior of Al-25Zn alloy/SiC/Graphite Novel Hybrid Composites for Plain Bearing Application

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