Abstract
In this work, strain and geometric necessary dislocation (GNDs) have been measured around various grain boundaries after subjected to a 4-point bend test in simulated PWR primary water conditions, with the aim of clarifying which local conditions trigger SCC initiation. Three different regions are compared: in a cracked grain boundary, the cracked and the uncracked portions are compared to a similar grain boundary in the as-received material. l. To study this, “on-axis” Transmission Kikuchi Diffraction (TKD) with a step size of 1 nm followed by GND analysis and cross-correlation based strain mapping, was performed. Results together with a discussion on the limitations of the approach will be presented.
Original language | English |
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Title of host publication | 19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems- Water Reactor conference |
Publication status | Accepted/In press - 1 Jul 2019 |
Event | 19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems - Water Reactors - Boston, United States Duration: 18 Aug 2019 → 22 Aug 2019 http://envdeg.ans.org/ |
Conference
Conference | 19th International Conference on Environmental Degradation of Materials in Nuclear Power Systems - Water Reactors |
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Country/Territory | United States |
City | Boston |
Period | 18/08/19 → 22/08/19 |
Internet address |