High-temperature radiation damage studies of Reduced Activation Ferritic/Martensitic (RAFM) steel at fusion relevant He/dpa ratio using positron beam based Doppler broadening spectroscopy

2021 ◽  
Vol 544 ◽  
pp. 152697
Author(s):  
Renjith Ramachandran ◽  
S. Julie ◽  
R. Rajaraman ◽  
R. Govindaraj ◽  
C. David ◽  
...  
Keyword(s):  
High Temperature ◽  
Radiation Damage ◽  
Positron Beam ◽  
Doppler Broadening ◽  
Temperature Radiation ◽  
Rafm Steel

Temperature Dependence of Radiation Damage in ODS Steel Studied by Triple Beam Irradiation and Positron Annihilation Techniques

2017 ◽  
Vol 373 ◽  
pp. 91-95 ◽  
Author(s):  
Da Qing Yuan ◽  
Qiao Li Zhang ◽  
Ping Fan ◽  
Xian Ping Wang ◽  
Bin Long ◽  
...  
Keyword(s):  
Radiation Damage ◽  
Positron Annihilation ◽  
Ion Beam ◽  
Positron Beam ◽  
Doppler Broadening ◽  
Beam Irradiation ◽  
Single Beam ◽  
Positron Annihilation Lifetime ◽  
Ods Steel ◽  
S Parameter

The oxide dispersed strengthened (ODS) ferritic-martensitic steel was irradiated by 100MeV iron ion whose energy was degraded by using a Ta foil of 4 μm thick, 100 keV Hydrogen and 200 keV Helium at 480, 515, 550 and 580 °C. The irradiation fluences were 1×1016, 1.1×1015 and 6.8×1013/cm2, respectively for Fe, H and He. The techniques of positron annihilation lifetime and Doppler broadening of slow positron beam were utilized to examine the produced radiation damage. At 550 °C the maximal positron annihilation lifetime and S parameter of Doppler broadening were observed, implyin g tha t 550 °C is the pea k temperature of swelling. The S parameter and annihilation lifetime of the sample irradiated at 515 °C by the single Fe ion beam were smaller compared to the triple beam irradiation at the same temperature, implying that the triple beam irradiation caused more severe damage than the single beam irradiation.

Positron beam Doppler broadening spectra and nano-hardness study on helium and hydrogen irradiated RAFM steel

2015 ◽  
Vol 107 ◽  
pp. 19-22 ◽  
Author(s):  
Yongming Wen ◽  
Shuoxue Jin ◽  
Zheng Yang ◽  
Fengfeng Luo ◽  
Zhongcheng Zheng ◽  
...  
Keyword(s):  
Positron Beam ◽  
Doppler Broadening ◽  
Rafm Steel ◽  
Doppler Broadening Spectra

scholarly journals Improved high temperature radiation damage tolerance in a three-phase ceramic with heterointerfaces

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Kenta K. Ohtaki ◽  
Maulik K. Patel ◽  
Miguel L. Crespillo ◽  
Keyur K. Karandikar ◽  
Yanwen Zhang ◽  
...  
Keyword(s):  
High Temperature ◽  
Radiation Damage ◽  
Damage Tolerance ◽  
Three Phase ◽  
Temperature Radiation

scholarly journals Mediation of high temperature radiation damage in bcc iron by Au or Cu precipitation

2020 ◽  
Vol 463 ◽  
pp. 69-75 ◽  
Author(s):  
Shasha Zhang ◽  
Zhengjun Yao ◽  
Zhaokuan Zhang ◽  
Moliar Oleksandr ◽  
Feida Chen ◽  
...  
Keyword(s):  
High Temperature ◽  
Radiation Damage ◽  
Bcc Iron ◽  
Temperature Radiation
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