Positron annihilation study on defect repair of pure iron and RPV steel under electropulsing treatment

Haiyi WEN; Qiwei QUAN; Xuanye YANG; Wenzeng ZHAO; Simin ZHANG; Yichu WU; Xiangbing LIU

doi:10.11889/j.0253-3219.2024.hjs.47.080203

NUCLEAR TECHNIQUES, Volume. 47, Issue 8, 080203(2024)

Positron annihilation study on defect repair of pure iron and RPV steel under electropulsing treatment

Haiyi WEN¹, Qiwei QUAN², Xuanye YANG¹, Wenzeng ZHAO¹, Simin ZHANG¹, Yichu WU^1、*, and Xiangbing LIU²

¹School of Physics and Technology, Hubei Key Laboratory of Nuclear Solid State Physics, Wuhan University, Wuhan 430072, China

²Suzhou Nuclear Power Research Institute, Suzhou 215004, China

show less

Abstract Get PDF(in Chinese)

Figures & Tables(8)

Fig. 1. Design diagram of EPT device

Download full size

View in Article

Fig. 2. Sample fixtures and their base

Download full size

View in Article

Fig. 3. Positron lifetime results of pure iron samples with EPT after electron irradiation

Download full size

View in Article

Fig. 4. Positron lifetime results of RPV steel samples with EPT after electron irradiation

Download full size

View in Article

Fig. 5. Average positron lifetimes and Vickers hardness of pure iron stretched samples after EPT

Download full size

View in Article

Table 1. Mass fraction of each component in A508-3 steel
View table
View in Article
Table 1. Mass fraction of each component in A508-3 steel
元素 Elements ω / % 元素 Elements ω / %
C 0.18 Ni 0.75
Si 0.16 Cu <0.02
Mn 1.41 Mo 0.46
S 0.002 7 V 0.005
P <0.005 Fe 其余 Balance
Cr 0.12

Table 2. Pulse current treatment parameters for electron irradiated samples of pure iron and RPV steel

View table

View in Article

Table 2. Pulse current treatment parameters for electron irradiated samples of pure iron and RPV steel

成分 Component	频率 Frequency / Hz	电流密度 Current density / A·mm^-2	脉冲宽度 Pulse width / ms	处理时间 Time / min
铁 Iron	0	0	0	0
铁 Iron	100	10	0.2	60
铁 Iron	100	30	0.2	60
RPV钢 RPV steel	0	0	0	0
RPV钢 RPV steel	100	3.33	0.2	60
RPV钢 RPV steel	100	10	0.2	60

Table 3. Parameters for tensile samples of pure iron

View table

View in Article

Table 3. Parameters for tensile samples of pure iron

样品 Sample	频率 Frequency / Hz	电流密度 Current density / A·mm^-2	脉冲宽度 Pulse width / ms	退火温度 Annealing temperature / ℃	处理时间 Time / min
初始 Initial	0	0	0	―	0
变形 Deformed	0	0	0.2	―	60
EPT 1	50	10	0.2	―	60
EPT 2	50	30	0.2	―	60
退火 Annealed	0	0	0	450	60

Tools

Get Citation

Copy Citation Text

Haiyi WEN, Qiwei QUAN, Xuanye YANG, Wenzeng ZHAO, Simin ZHANG, Yichu WU, Xiangbing LIU. Positron annihilation study on defect repair of pure iron and RPV steel under electropulsing treatment[J]. NUCLEAR TECHNIQUES, 2024, 47(8): 080203

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites