Abstract
It Is Important to be able to reveal the whole of the microstructural
changes in the fueI-cIadding interaction zone. Compatibility couples of austenitic stainless steels (DIN 1.4401, 1.4970, 1.4981, 1.4988) and hyperstoIch1ometr1c UO2 to which elements were added to simulate a 10 % burn-up, were used In this out-of-pile study. A variety of reaction products are formed In the contact surface layers and further along the grain boundaries of the canning material, taut the transport of alloy elements which take part In these reactions can cause contiguous microstructural changes. A detailed description is given of two metaIIographic techniques appropriate for optical analysis of all the reaction zones present, one based on the application of epitaxial films and the other on the application of interference film microscopy; their respective results are compared.
changes in the fueI-cIadding interaction zone. Compatibility couples of austenitic stainless steels (DIN 1.4401, 1.4970, 1.4981, 1.4988) and hyperstoIch1ometr1c UO2 to which elements were added to simulate a 10 % burn-up, were used In this out-of-pile study. A variety of reaction products are formed In the contact surface layers and further along the grain boundaries of the canning material, taut the transport of alloy elements which take part In these reactions can cause contiguous microstructural changes. A detailed description is given of two metaIIographic techniques appropriate for optical analysis of all the reaction zones present, one based on the application of epitaxial films and the other on the application of interference film microscopy; their respective results are compared.
| Original language | English |
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| Publisher | SCK CEN |
| Number of pages | 25 |
| State | Published - Sep 1975 |
Publication series
| Name | SCK CEN Reports |
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| Publisher | SCK CEN |
| No. | BLG-507 |