Effect of Helium and Aging Treatment on Radiation Damage Behavior in Low Activation Fe-Cr-Mn (W, V) Alloy

Hisao Kinoshita; Benfu Hu; H. Takahashi

doi:10.4028/www.scientific.net/MSF.475-479.1455

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Effect of Helium and Aging Treatment on Radiation Damage Behavior in Low Activation Fe-Cr-Mn (W, V) Alloy
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HomeMaterials Science ForumMaterials Science Forum Vols. 475-479Effect of Helium and Aging Treatment on Radiation...

Effect of Helium and Aging Treatment on Radiation Damage Behavior in Low Activation Fe-Cr-Mn (W, V) Alloy

Abstract:

The effects of helium and aging treatment on radiation damage behavior in low activation Fe-Cr-Mn ( W, V) alloy were investigated by electron and helium ion dual-beam irradiation in a high voltage electron microscope. Specimens were aged at 673 K, 823 K and 923 K for 1000, 3000 and 10000 hours. Electron and He ion dual-beam irradiations were performed at 627 K to 10 dpa. M23C6 type carbides were precipitated in the aged specimens, and the amount of the precipitates was increased with increasing aging temperature and aging time. He bubbles were formed during dual-beam irradiation in all of the specimens. The cavity swelling under dual-beam irradiations was increased with increasing the aging temperature and aging time. It was suggested that cavity swelling is closely related to the concentration of solutes such as Cr and C in the matrix, namely cavity growth rate becomes higher with decreasing of the solutes in solution.

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Periodical:

Materials Science Forum (Volumes 475-479)

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1455-1458

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.475-479.1455

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Online since:

January 2005

Authors:

Hisao Kinoshita, Benfu Hu, H. Takahashi

Keywords:

Aging, Electron Irradiation, Fe-Cr-Mn Alloy, Helium, Low Activation

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