| EPSRC Reference: |
GR/M92836/01 |
| Title: |
JREI:MECHANICAL PROPERTY MEASUREMENT & MAPPING OF COMPLEX MATERIALS THROUGH INDENTATION & SCRATCHING |
| Principal Investigator: |
Shipway, Professor PH |
| Other Investigators: |
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| Department: |
Sch of Mech Materials Manuf Eng Mgt |
| Organisation: |
University of Nottingham |
| Scheme: |
JREI |
| Starts: |
18 April 2000 |
Ends: |
17 January 2003 |
Value (£): |
27,600
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| EPSRC Research Topic Classifications: |
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| Manufacturing |
No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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Instrumentation microhardness indentation and scratch indentation equipment will be used to benefit a range of projects running in the Surface processing and Interfacial Technology Group at the University of Nottingham. The technique allows the measurement of the hardness and elastic properties in complex microstructures, as well as giving an indication of the toughness of the phases. This particular attribute will be employed in determining the microstructure of HVOF sprayed WC-Co coatings as a means of developing and understanding of the microstructure-tribological property relationships in this coating.The scratch hardness facility will be employed in quantifying the quality and spall resistance of tow coating systems. The first application is for electrodeposited W-Co-B based coatings which are being explored as a substitute for hard chrome plate which has environmental concerns attached to its production. Hard coatings have been formed but their integrity as a function of alloy composition and heat treatment needs to be fully investigated. The second application is for multilayer interlayers between DLC and a titanium substrate to improve spall resistance for biomedical applications. The nature of the interfaces has been investigated in some detail, but now requires robust and reproducible methods to examine the mechanical properties; instrumented scratch hardness testing is the obvious solution.New abstractInstrumentated microhardness indentation equipment has been used to benefit a range of projects running in the Science and Engineering Faculties at the University of Nottingham. The technique allows the measurement of the hardness and elastic properties in complex microstructures, as well as giving an indication of the toughness of the phases. The facility allows large numbers of indentations to be made in a relatively short space of time and thus allows maps to be built up; the phrase mechanical microscopy hase been coined by the NPL to describe this. Operator error and fatigue associated with conventional hardness testing are avoided. The system has been employed in determining the mechanical properties of the microstructural features of HVOF sprayed WC-Co coatings as a means of developing and understanding of the microstructure-tribological property relationships in this coating.The facility has been used to map hardness and elastic modulus to the benefit of a wide range of projects including thermo-mechanical processing of metals, creep behaviour of welded structures, warm compaction of powder metallurgy components, polymer deformation and doping, and properties of biomaterials.Web address with further details if you wish:
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.nottingham.ac.uk |