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Effect of heat load on microstructural development in an irradiated low alloy steel

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Title: Effect of heat load on microstructural development in an irradiated low alloy steel
Authors: Goto, Shunta Browse this author
Hashimoto, N. Browse this author
Keywords: Low alloy steel
Electron irradiation
Irradiation damage
Issue Date: Aug-2018
Publisher: Elsevier
Journal Title: Nuclear materials and energy
Volume: 16
Start Page: 263
End Page: 266
Publisher DOI: 10.1016/j.nme.2018.06.020
Abstract: To investigate the influence of heat load on microstructure change, we conducted in-situ experiments of annealing and irradiation for a model alloy (Fe-0.75Mn-0.47Mo-0.45Ni) using a multi-beam high voltage electron microscope. Electron-irradiation resulted in the formation of black dots in the model alloy. It is noted that some of black dots grew and changed to dislocation loops, but some did not. Furthermore, the 500 degrees C annealing to the electron-irradiated sample resulted in the shrinkage and/or the disappearance of black dots and small loops (<10 nm). It is suggested that the annealing would cause the release of interstitial atoms from small loops, which could flow into adjacent larger loops or diffuse to the surface.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 橋本 直幸

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