| EPSRC Reference: |
GR/H83829/01 |
| Title: |
ENHANCEDMATERIALS FOR RETRACTOR SPRINGS |
| Principal Investigator: |
Gladman, Professor T |
| Other Investigators: |
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| Project Partners: |
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| Department: |
Institute of Materials Research |
| Organisation: |
University of Leeds |
| Scheme: |
LINK |
| Starts: |
12 October 1992 |
Ends: |
11 January 1995 |
Value (£): |
132,069
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| EPSRC Research Topic Classifications: |
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| EPSRC Industrial Sector Classifications: |
| Manufacturing |
Transport Systems and Vehicles |
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Summary on Grant Application Form |
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Retractor springs are widely used in car safety seat belts, extendable leads, machine timers and many other applications of a similar nature. The objective of the present study is to increase the strength of high carbon steel spring strip from the current level of 2.5 GPa up to 4 GPa, and to increase that of stainless steel spring strip from 2 GPa up to 3 GPa. The effects of thermal treatments, steel composition and cold rolling reduction are to be examined. In the case of the high carbon steel, the effects of isothermal transformation temperature on the microstructure prior to cold rolling will be examined, together with its effect on the structure and properties of the cold rolled strip. Attempts will be made to combine the strengthening effects of a fine pearlite spacing with precipitation strengthening by vanadium carbo-nitrides. In the case of the stainless steels, heats of the 301 and 304 grades will be selected on the basis of their susceptibility to form strain induced martensite during cold rolling, and to examine the effects of the levels of susceptibility on both the strength of the rolled product and the ductility during the cold rolling schedules.
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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.leeds.ac.uk |