| EPSRC Reference: |
GR/T19704/01 |
| Title: |
The relation between internal stress & failure in TiAl-based alloys and in a burn-resistant Ti alloy |
| Principal Investigator: |
Wu, Professor X |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
IRC in Materials Processing |
| Organisation: |
University of Birmingham |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
25 August 2005 |
Ends: |
24 August 2008 |
Value (£): |
218,632
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
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| EPSRC Industrial Sector Classifications: |
| Aerospace, Defence and Marine |
Transport Systems and Vehicles |
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| Related Grants: |
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Summary on Grant Application Form |
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The project aims to relate the level of internal stresses developed during loading of two different TiAI-based alloys and a burn-resistant Ti alloy which contains about 4vol% of Ti carbides, to the fatigue properties of these alloys. The TiAI alloys which will be used are plastically anisotropic fully IamellarTi44Al8Nb1B and a more isotropic, highly convoluted structure in Ti46AI8Nb. Detailed measurements of the stress levels developed during straining will be obtained for these alloys using neutron diffraction, which coupled with acoustic emission data will allow internal stress measurements to be correlated with the onset of cracking. Similar measurements will be carried out in fatigue. Observations using EBSD will be used to define the misorientation between adjacent lamellar colonies to the strain developed during tensile and fatigue loading in these lamellae. 3-D information will be obtained by electropolishing to various depths and repeating the observations. Measurements using high energy synchrotron diffraction and high resolution tomography will allow strain distribution between the TiC particles and the matrix in the burn-resistant Ti alloy and furthermore will allow the influence of any larger particles to be observed directly. Correlation of these observations with acoustic emission and with TEM observations will enable a detailed understanding of the role of microplasticity on failure in these important alloys.
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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.bham.ac.uk |