Forthcoming and Online First Articles

International Journal of Surface Science and Engineering

International Journal of Surface Science and Engineering (IJSurfSE)

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International Journal of Surface Science and Engineering (6 papers in press)

Regular Issues

  • A Novel Magnetorheological Finishing Process Based on Three Revolving Flat Tip Tools for External Cylindrical Surfaces   Order a copy of this article
    by Gagandeep Singh, A. Jayant 
    Abstract: The magnetorheological finishing technique based on a stationary curved tip tool is found less effective in finishing external cylindrical surfaces. Therefore, three revolving flat tip tools-based magnetorheological finishing process which utilises the rotation of both workpiece and tools have been developed to address the issues of the existing method. Also, a feed mechanism has been built to provide the longitudinal movement to the workpiece. A workpiece of mild steel has been finished by both developed and existing methods. It has been observed that after finishing 1 hour 30 minutes with a stationary curved tip tool, surface roughness values Ra, Rq, and Rz decrease by 69.29%, 64.41%, and 61.26%, respectively. Whereas, the reduction in the surface roughness value of Ra, Rq, and Rz by 85.38%, 84.51%, and 82.7%, respectively, has been noted after finishing with the three revolving flat tip tools process at the same parameters and conditions.
    Keywords: magnetorheological fluid; external cylindrical surfaces; surface roughness; magnetorheological finishing.
    DOI: 10.1504/IJSURFSE.2022.10048826
     
  • Influence of temperature on the metallic surface cleanliness in ICF facility: a combined experimental and molecular simulation study   Order a copy of this article
    by Yilan Jiang, Longfei Niu, Guorui Zhou, Xinxiang Miao, Haibing Lv, Wen Qian 
    Abstract: Wettability of metal surfaces is used to characterise the surface cleanliness of components in the inertial confinement fusion (ICF) facility. In this work, molecular simulations combined with wettability experimentation were performed. The temperature effects of water-metallic interface energies and their influence on the measurements for surface cleanliness were investigated. The simulation results indicated van der Waals forces promoted the attraction between water molecules and metal surfaces. The interaction energies raised with elevated temperatures from 291 K to 303 K. Besides, the wettability experiments showed both the Al and Fe components were hydrophilic, and the contact angle was reduced with elevated temperatures. The correlationship between the energy change and the contact angle at varying temperatures can be found. This research provides a new understanding of the characterisation of metal surface cleanliness.
    Keywords: surface cleanliness; solid-liquid interface; contact angle test; molecular dynamics.
    DOI: 10.1504/IJSURFSE.2023.10051543
     
  • High temperature friction and wear experimental studies on 3D printed nickel iron base superalloy   Order a copy of this article
    by Ruben Jose Tom, Ciby Thomas, G. Venugopal, Rajkumaar M. R 
    Abstract: In this paper, a nickel base alloy is developed through 3D printing process following the laser sintering technique for high temperature wear application. The mechanical properties such as hardness, strength and density are evaluated to just the quality of 3D printed material. The Vickers hardness of the 3D printed nickel alloy is 265 Hv which is very close to the commercial alloy available superalloy in the market. The density of the 3D printed nickel alloy is 8.2 g/cc and for the conventional superalloy is 8.17 g/cc. From the sliding wear analysis, it has to be noticed that with respect to increase in load the coefficient of friction and wear rate found increasing gradually throughout the test duration. This is due to the frictional force and the working environment applied during the investigation. Mass loss is noticed at 10 N-150
    Keywords: 3D printing; nickel alloy; wear; temperature; surface topography.
    DOI: 10.1504/IJSURFSE.2023.10051573
     
  • Effects of Wall Slip on Hydrodynamic Performances of Water-lubricated Bearings Under Transient Operating Condition   Order a copy of this article
    by Bowen Yao, Guo Xiang, Jiaxu Wang, Juan Guo, Yanyu Nie 
    Abstract: The purpose of this study is to identify the role of the wall slip on the transient hydrodynamic performance of the water-lubricated bearing considering eccentricity rotor. The modified Reynolds equation with the wall slip is used to calculate the transient hydrodynamic pressure, and the motion equation, which is fully coupled with the transient hydrodynamic force, is adopted to determine the journal orbit. The correctness of the present model is verified by the comparisons with the theoretical results in the available literature. Numerical results indicate the unbalance load caused by the eccentricity rotor leads to the transient hydrodynamic, film thickness and slip velocity. Additionally, it is observed that the positive effect of the wall slip on the transient hydrodynamic performance of water-lubricated bearing is highly dependent on the eccentricity ratio, and that the maximum slip velocity is more affected by the slip region compared with the minimum slip velocity. This study is performed to highlight the important role of the wall slip on transient hydrodynamic performance and recommend an optimal wall slip region design under transient operating condition for water-lubricated bearings.
    Keywords: water-lubrication bearing; wall slip; hydrodynamic; transient simulation.
    DOI: 10.1504/IJSURFSE.2023.10051704
     
  • Assessment of friction and wear as a function of the pressure applied to the CNT-filled silicone rubber nanocomposite pins   Order a copy of this article
    by Avinash Shinde, Siva I, Yashwant Munde, Sankar Irulappasami, Dhar Malingam Sivakumar 
    Abstract: This study aims to determine how the incorporation of carbon nanotube (CNT) fillers can enhance the mechanical and tribological properties of silicon rubber (SiR). The nanocomposite is created by combining the materials in a three-roll mill, compressing the mixture at 170 degrees Celsius, and then curing it for four hours at 200 degrees Celsius. The tensile strength improves by up to 3% for every 0% to 7% increase in the CNT weight percentage, after which it remains constant. When the load is 3% CNT, the coefficient of friction (COF) is at its lowest, and it declines as the load increases. There is a suggestion that the effect of heat and the aggregation of nanoparticles is responsible for the increase in COF that happens as the fraction of CNTs increases. Researchers found that a change in the sliding velocity affected both the coefficient of friction and the specific wear rate.
    Keywords: silicon rubber; carbon nano tubes; CNT; wear; friction; mechanical properties; nanocomposites; morphology; rollmixing; compression moulding.
    DOI: 10.1504/IJSURFSE.2023.10052193
     
  • Investigation of solid particle erosion behavior of Fe-Cr alloy coating   Order a copy of this article
    by Ratnesh Sharma, Randip Das, Shiv Kumar 
    Abstract: The purpose of present study was to examine the erosion wear behaviour of Fe-Cr coating deposited on 316 L steel using HVOF coating technology. Chromium content was varied (0
    Keywords: Fe-Cr coating; HVOF coating; Chromium; solid particle erosion; SEM image.
    DOI: 10.1504/IJSURFSE.2023.10052346