Awarded Research Themes and Reports
Note: "Affiliation" in the table is based on the day of grant.
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| Grant Year | Research Theme | Principal Investigator, Co-Investigator (Country) |
Research Content Summary / Related Publication / Main Report |
|---|---|---|---|
| 2018 First |
Contact mechanisms between workpiece and tailored tool surfaces influencing lubrication and friction in tribologically severe manufacturing processes | Dr. Mohd Hafis Sulaiman (Malaysia) 18A01 |
Ⅰ. Summary Tailored tool surfaces show promise as alternative to replace chlorinated oils in sheet-metal forming. The tool surfaces have been tailored by micro-groove as well as coating to look into its potential under dry and minimal lubrication amount of less harmful lubricants. Tribologically severe strip reduction test, emulates industrial ironing, was used to better understand the effects of tailored tool surfaces for severe forming conditions. Investigated tailored tool surfaces have shown a positive result leading to improve lubrication. In the case of applying newly developed DLC/TiAlN coating to tool surface, the coated tools even worked satisfactorily in dry friction condition. Ⅱ. Related Publication (Researcher doesn't agree to disclose main report.) 18A01 Related Publication (HP).pdf Affiliation of Principal Investigator: Universiti Malaysia Perlis |
| Investigating the destructive effect of the lubrication on elastic-plastic contact/collision of lubricated surfaces with application to spalling fatigue failure of rolling element bearings | Prof. Matthew R. W. Brake (USA), Mr. Senyo Ahadzie(USA) 18A08 |
Ⅰ. Summary This research investigated the effect of lubrication on plastic deformations during impact loads. The ultimate goal of this project was to postpone the formation White Etching Cracks (WEC) by optimizing the lubrication for reducing severe plastic deformations. The WECs are widely found in wind turbines and are considered the primary failure mode for these structures. The research was primarily experimental. The effect of lubrication on the properties of the impact response was measured for four different lubrications spanning viscosities from 50 to 220 mm2/s. As the lubrication thickness increased, the permanent deformation in the surface decreased for low viscosity fluids, but increased for high viscosity fluids. Surprisingly, the energy dissipated by the impact decreased for higher viscosity fluids compared to low viscosity fluids, which establishes a contradiction: for higher viscosity fluids, less energy is dissipated by the impact, but the impact event itself is more damaging to the substrate. Ⅱ. Related Publication (Researcher doesn't agree to disclose main report.) 18A08 Main Report (HP).pdf Affiliation of Principal Investigator: William Marsh Rice University |
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| 2018 Second |
Tribological study of hardface coatings for ground-engaging tools | Dr. Christiane Schulz, Assoc. Prof. Colin Hall (all above Australia) 18B06 |
Ⅰ. Summary Within the frame of this project, Ni/WC laser clad and WC/Co thermal spray coatings were developed and tested for their suitability as hardfacing for basecutter blades in sugar cane harvesting. All materials, including commercial references were tested for abrasion resistance (ASTM G65); impact resistance and corrosion resistance in fresh sugar cane juice. It was demonstrated that all tungsten carbide-reinforced coatings were more abrasion resistant than the commercial blades. Abrasion resistance was increased by a factor of 5-40. The experimental coatings have similar impact resistance than the commercial blades, especially the laser clad hardfacings. Corrosion resistance of basecutter blades can be improved by a factor of 10. Overall, the wear and corrosion resistance of basecutter blades can be improved when a suitable material and surfacing process is chosen. The findings of the project can greatly increase the wear resistance of basecutter blades and other agricultural and ground engaging tools. Ⅱ. Related Publication (Researcher doesn't agree to disclose main report.) 18B06 Related Publication (HP).pdf Affiliation of Principal Investigator: University of South Australia |
| In-situ measurement of oil viscosity in an operating journal bearing using shear-horizontal waves | Prof. Pierre Ricco (UK), Prof. Rob S Dwyer-Joyce (UK) 18B10 |
--- Affiliation of Principal Investigator: University of Sheffield |
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| Understanding Reactions Occurring in Lubricants in Tribological Contacts | Dr. Janet Wong (UK), Prof. Hugh Spikes (UK) 18B16 |
Ⅰ. Summary This work is a part of a larger effort aiming to understand formation of tribofilms as a mechanochemical process. In this work, we have custom-built a Raman spectroscopy setup which can be used together with a tribometer. This allows us to examine chemistry of tribofilm during its formation in real time. MoDTC is a commonly used antiwear additive, which during rubbing in boundary lubrication regime, form a MoS2 tribofilm. Preliminary results show that the experimental platform is capable to monitor the formation of MoS2 film in real time. The nature of the tribofilm is shown to depend on test temperature. The choice of base oil may also affect the chemistry of the tribofilm. Ⅱ. Related Publication (Researcher doesn't agree to disclose main report.) 18B16 Related Publication (HP).pdf Affiliation of Principal Investigator: Imperial College London |