Comparison of helium bubble formation in F82H, ODS, SIMP and T91 steels irradiated by Fe and He ions simultaneously

2020 ◽  
Author(s):  
Bingsheng Li ◽  
Zhen Yang ◽  
Shuai Xu ◽  
Kongfang Wei ◽  
Zhiguang Wang ◽  
...  
Keyword(s):  
Bubble Formation ◽  
Helium Bubble

Microstructure of HIPed and SPSed 9Cr-ODS steel and its effect on helium bubble formation

2016 ◽  
Vol 474 ◽  
pp. 65-75 ◽  
Author(s):  
Chenyang Lu ◽  
Zheng Lu ◽  
Rui Xie ◽  
Chunming Liu ◽  
Lumin Wang
Keyword(s):  
Bubble Formation ◽  
Helium Bubble ◽  
Ods Steel

scholarly journals Helium bubble formation in ultrafine and nanocrystalline tungsten under different extreme conditions

2015 ◽  
Vol 458 ◽  
pp. 216-223 ◽  
Author(s):  
O. El-Atwani ◽  
K. Hattar ◽  
J.A. Hinks ◽  
G. Greaves ◽  
S.S. Harilal ◽  
...  
Keyword(s):  
Bubble Formation ◽  
Extreme Conditions ◽  
Helium Bubble

scholarly journals In-Situ Helium Implantation and TEM Investigation of Radiation Tolerance to Helium Bubble Damage in Equiaxed Nanocrystalline Tungsten and Ultrafine Tungsten-TiC Alloy

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 794 ◽  
Author(s):  
Osman El Atwani ◽  
Kaan Unal ◽  
William Streit Cunningham ◽  
Saryu Fensin ◽  
Jonathan Hinks ◽  
...  
Keyword(s):  
Damage Evolution ◽  
Bubble Formation ◽  
Coarse Grained ◽  
Irradiation Damage ◽  
Radiation Tolerance ◽  
Helium Bubble ◽  
Average Grain Size ◽  
Order Of Magnitude ◽  
Helium Implantation

The use of ultrafine and nanocrystalline materials is a proposed pathway to mitigate irradiation damage in nuclear fusion components. Here, we examine the radiation tolerance of helium bubble formation in 85 nm (average grain size) nanocrystalline-equiaxed-grained tungsten and an ultrafine tungsten-TiC alloy under extreme low energy helium implantation at 1223 K via in-situ transmission electron microscope (TEM). Helium bubble damage evolution in terms of number density, size, and total volume contribution to grain matrices has been determined as a function of He+ implantation fluence. The outputs were compared to previously published results on severe plastically deformed (SPD) tungsten implanted under the same conditions. Large helium bubbles were formed on the grain boundaries and helium bubble damage evolution profiles are shown to differ among the different materials with less overall damage in the nanocrystalline tungsten. Compared to previous works, the results in this work indicate that the nanocrystalline tungsten should possess a fuzz formation threshold more than one order of magnitude higher than coarse-grained tungsten.

Helium bubble formation during dual beam irradiation

1984 ◽  
Vol 120 (2-3) ◽  
pp. 342-344 ◽  
Author(s):  
P.L. Lane ◽  
J.H. Evans ◽  
P.J. Goodhew
Keyword(s):  
Bubble Formation ◽  
Beam Irradiation ◽  
Helium Bubble ◽  
Dual Beam

Helium bubble formation on tungsten in dependence of fabrication method

2011 ◽  
Vol 417 (1-3) ◽  
pp. 499-503 ◽  
Author(s):  
Masato Yamagiwa ◽  
Shin Kajita ◽  
Noriyasu Ohno ◽  
Makoto Takagi ◽  
Naoaki Yoshida ◽  
...  
Keyword(s):  
Bubble Formation ◽  
Fabrication Method ◽  
Helium Bubble

Peculiarities of helium bubble formation and helium behavior in vanadium alloys of different chemical composition

2015 ◽  
Vol 461 ◽  
pp. 56-60 ◽  
Author(s):  
М.S. Staltsov ◽  
I.I. Chernov ◽  
B.A. Kalin ◽  
Kyi Zin Oo ◽  
A.A. Polyansky ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Bubble Formation ◽  
Helium Bubble ◽  
Vanadium Alloys
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