Damage of the unalloyed-plutonium structure as a result of phase naklep and self-irradiation: An electrical-resistance study

被引:1
作者
Troshev, A. V. [1 ]
Lyasota, A. M. [1 ]
机构
[1] Russian Fed Nucl Ctr, Zababakhin All Russia Res Inst Tech Phys, Snezhinsk 456770, Chelyabinsk Obl, Russia
关键词
unalloyed plutonium; self-irradiation; transmutation products; COPPER-BORON ALLOYS; HELIUM GAS;
D O I
10.1134/S0031918X10060074
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
Damage of the structure of the alpha phase of plutonium as a result of repeated alpha a dagger" beta phase recrystallization and prolonged self-irradiation was estimated based on the changes in the electrical resistance measured at room temperature before and after phase recrystallization. Samples with different time of storage were used. An analysis of the results showed that the electrical resistance of samples grows linearly depending on the number of cycles of phase recrystallization. It has been established that the slope of the dependences obtained is determined by the maximum temperature of the sample in the cycle. At a maximum temperature in the cycle equal to 170A degrees C, an increase in the relative electrical resistance of the samples was similar to 2.5%/cycle; when heating to 125A degrees C, similar to 0.3%/cycle. The variation of the electrical resistance of the samples stored for similar to 20 years depending on the number of cycles of phase recrystallization exhibited a single feature, namely, a decrease in resistance in the first cycle of heating to 170A degrees C rather than an increase observed in the experiments with the samples stored for similar to 2.5 year. This decrease is connected with the influence of the possible beginning of migration of radiogenic helium. In the subsequent cycles, the change in the electrical resistance of samples upon prolonged storage was analogous to that of the samples with a short time of storage.
引用
收藏
页码:615 / 620
页数:6
相关论文
共 12 条
[1]  
ALLEN RP, 1976, P C PLUT OTH ACT BAD, P775
[2]  
FAIERS ME, 1976, P C PLUT OTH ACT BAD, P739
[3]  
FLUSS MJ, 2005, MATERIALOVEDENIE, P35
[4]  
Kachanov LazarMarkovich., 1971, Foundations of the theory of plasticity
[5]  
LOASBY RG, 1961, PLUTONIUM 1960, P3
[6]  
NELSON RD, 1967, PLUTONIUM 1965, P1
[7]   A PRELIMINARY INVESTIGATION OF HELIUM GAS PRECIPITATION IN IRRADIATED COPPER-BORON ALLOYS [J].
RUSSELL, B ;
HASTINGS, IJ .
JOURNAL OF NUCLEAR MATERIALS, 1965, 17 (01) :30-&
[8]  
SPRIET B, 1967, PLUTONIUM 1965, P88
[9]  
TIMOFEEVA LF, 2005, 5 INT SEM FUND PROBL, P57
[10]   BEHAVIOUR OF HELIUM GAS IN IRRADIATED COPPER-BORON ALLOYS [J].
VELA, P ;
RUSSELL, B .
JOURNAL OF NUCLEAR MATERIALS, 1966, 19 (03) :312-&