The Effect of Reducing Irradiation Temperature on the Structure and Radiation Embrittlement Mechanism of RPV Steels

E A Kuleshova; B A Gurovich; A S Frolov; S V Fedotova; D A Maltsev; E V Krikun; D A Zhurko; Z V Bukina

Article Details

The Effect of Reducing Irradiation Temperature on the Structure and Radiation Embrittlement Mechanism of RPV Steels

Authors:

E A Kuleshova | B A Gurovich | A S Frolov | S V Fedotova | D A Maltsev | E V Krikun | D A Zhurko | Z V Bukina

Publisher:

KnE Social Sciences

Journal:

KnE Material Sciences Vol.4 Issue 1, pp.406-413

Document Type:

Article

Publication Date:

6/2018

Document Language:

English

Document ID (Org No.):

2001529976

pISSN:

2519-1438

Abstract:

 A complex research of RPV 15Kh2NMFA class 1 steel in different states was performed: in the initial state and after irradiatiion at different temperatures (50-300∘C). Low temperature (50-140∘C) irradiation was shown to cause the formation of dislocation loops of ultrahigh density. At the same time radiation-induced precipitates, being the main radiation-induced hardening phase at irradiation temperature of VVER reactors (∼300∘C), were absent. This leads to a higher radiation embrittlement rate after low-temperature irradiation as compared with irradiation at operating temperatures of VVER-1000. The radiation embrittlement coefficient values are 8.7 and 1.45 for (120-140)∘C and (290-315)∘C irradiation temperature, respectively.

Article Details

The Effect of Reducing Irradiation Temperature on the Structure and Radiation Embrittlement Mechanism of RPV Steels

Authors: E A Kuleshova | B A Gurovich | A S Frolov | S V Fedotova | D A Maltsev | E V Krikun | D A Zhurko | Z V Bukina

Publisher: KnE Social Sciences

Journal: KnE Material Sciences Vol.4 Issue 1, pp.406-413

Document Type: Article

Publication Date: 6/2018

Document Language: English

Document ID (Org No.): 2001529976

pISSN: 2519-1438

Issues

Authors:

E A Kuleshova | B A Gurovich | A S Frolov | S V Fedotova | D A Maltsev | E V Krikun | D A Zhurko | Z V Bukina

Publisher:

KnE Social Sciences

Journal:

KnE Material Sciences Vol.4 Issue 1, pp.406-413

Document Type:

Article

Publication Date:

6/2018

Document Language:

English

Document ID (Org No.):

2001529976

pISSN:

2519-1438