Unusual response of the binary V-2Si alloy to neutron irradiation in FFTF at 430-600{degrees}C

1996 ◽  
Author(s):  
S Ohnuki ◽  
H Konoshita ◽  
H Takahaski ◽  
F A Garner
Keyword(s):  

Author(s):  
Robert C. Rau ◽  
Robert L. Ladd

Recent studies have shown the presence of voids in several face-centered cubic metals after neutron irradiation at elevated temperatures. These voids were found when the irradiation temperature was above 0.3 Tm where Tm is the absolute melting point, and were ascribed to the agglomeration of lattice vacancies resulting from fast neutron generated displacement cascades. The present paper reports the existence of similar voids in the body-centered cubic metals tungsten and molybdenum.



Author(s):  
Satoru KAWASAKI ◽  
Kiyoshi FUKAYA ◽  
Ryukichi NAGASAKI




1961 ◽  
Vol 95 (881) ◽  
pp. 124-126
Author(s):  
Daniel J. McDonald ◽  
Howard C. Long


2000 ◽  
Vol 650 ◽  
Author(s):  
Lance L. Snead ◽  
Martin Balden

ABSTRACTDensification and crystallization kinetics of bulk SiC amorphized by neutron irradiation is studied. The temperature of crystallization onset of this highly pure, fully amorphous bulk SiC was found to be between 875-885°C and crystallization is nearly complete by 950°C. In-situ TEM imaging confirms the onset of crystallization, though thin-film effects apparently alter the kinetics of crystallization above this temperature. It requires >1125°C for complete crystallization of the TEM foil. Annealing at temperatures between the irradiation and crystallization onset temperature is seen to cause significant densification attributed to a relaxation, or reordering, of the as-amorphized structure.



2021 ◽  
Vol 23 (7) ◽  
pp. 4217-4229
Author(s):  
Shahid Maqbool ◽  
Yongsheng Li ◽  
Suleman Muhammad ◽  
Zhengwei Yan ◽  
Shujing Shi

Radiation-enhanced precipitation (REP) in Fe–Cu alloys results in higher volume fraction and radius of Cu precipitates.



2021 ◽  
Vol 547 ◽  
pp. 152834
Author(s):  
Kun Wang ◽  
Chad M. Parish ◽  
Kevin G. Field ◽  
Lizhen Tan ◽  
Yutai Katoh


2021 ◽  
Vol 11 (7) ◽  
pp. 2917
Author(s):  
Madalina Rabung ◽  
Melanie Kopp ◽  
Antal Gasparics ◽  
Gábor Vértesy ◽  
Ildikó Szenthe ◽  
...  

The embrittlement of two types of nuclear pressure vessel steel, 15Kh2NMFA and A508 Cl.2, was studied using two different methods of magnetic nondestructive testing: micromagnetic multiparameter microstructure and stress analysis (3MA-X8) and magnetic adaptive testing (MAT). The microstructure and mechanical properties of reactor pressure vessel (RPV) materials are modified due to neutron irradiation; this material degradation can be characterized using magnetic methods. For the first time, the progressive change in material properties due to neutron irradiation was investigated on the same specimens, before and after neutron irradiation. A correlation was found between magnetic characteristics and neutron-irradiation-induced damage, regardless of the type of material or the applied measurement technique. The results of the individual micromagnetic measurements proved their suitability for characterizing the degradation of RPV steel caused by simulated operating conditions. A calibration/training procedure was applied on the merged outcome of both testing methods, producing excellent results in predicting transition temperature, yield strength, and mechanical hardness for both materials.



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