Performance and Reliability of Metallic Materials for Nuclear Fission Power Generation
Lead Research Organisation:
Imperial College London
Department Name: Materials
Abstract
Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.
Publications
Gajdacsi A
(2014)
Reconstruction of Temperature Distribution in a Steel Block Using an Ultrasonic Sensor Array
in Journal of Nondestructive Evaluation
Gajdacsi A
(2014)
High accuracy wall thickness loss monitoring
Scatigno G
(2016)
The effect of prior cold work on the chloride stress corrosion cracking of 304L austenitic stainless steel under atmospheric conditions
in Materials Science and Engineering: A
Weekes H
(2016)
Hydride reorientation in Zircaloy-4 examined by in situ synchrotron X-ray diffraction
in Journal of Nuclear Materials
Weekes H
(2015)
In situ micropillar deformation of hydrides in Zircaloy-4
in Acta Materialia
Weekes H
(2019)
The effect of pressure on hydrogen solubility in Zircaloy-4
in Journal of Nuclear Materials
| Description | A systematic study of many of the important microstructural features associated with SCC as a result of the introduction of cold work were examined and as a result several proposed theories were rejected. The idea that martensite induced by plastic strain was a cause of the decreased SCC resistance was not found and no link could be made due to occurrence of "special" CSL grain boundaries. The big increase in SCC was observed for a narrow window of cold work of 0.5-2%. More than this and the cold work showed a protective nature with no cracks observed at 20% cold work or greater. It was proposed this was due to heterogeneous plasticity effects at low levels of cold work generating micro-level residual stresses |
| Exploitation Route | Research being taken forward by second PhD. We will use EBSD to look for microlevel stresses to test our theory. We will study the effect of weld residual stresses on SCC and the effects of salt level needed for SCC. |
| Sectors | Energy |
| Description | As above the results will be reviewed by EDF Energy as part of their safety case proposal for the dry storeat Sizewell and a second paper to be published for which we are collecting additional data on the effects of salt loading on SCC could potentially have a big impact on the safety case. |
| First Year Of Impact | 2016 |
| Sector | Aerospace, Defence and Marine,Energy,Government, Democracy and Justice |
| Impact Types | Economic |
| Description | Award to extend GG Scatigno's PhD funding period to study the effect of atmospheric SCC on the 316L material that the dry store containers are made from. |
| Amount | £20,000 (GBP) |
| Organisation | EDF Energy |
| Sector | Private |
| Country | United Kingdom |
| Start | 06/2015 |
| End | 12/2016 |
| Description | Rolls-Royce plc |
| Organisation | Rolls Royce Group Plc |
| Country | United Kingdom |
| Sector | Private |
| PI Contribution | . |
| Collaborator Contribution | . |
| Impact | . |