Influence of injected ions on α' formation under ion irradiation in Oxide Dispersion Strengthened Steels

被引：2
作者：
Loyer-Prost, Marie [1 ,3 ]
Jublot-Leclerc, Stephanie [2 ]
Saleh-Afif, Marie-Jose [1 ,2 ]
Ribis, Joel
Gentils, Aurelie [2 ]
机构：
[1] Univ Paris Saclay, Serv Rech Corros & Comportement Mat, CEA, SRMP, F-91191 Gif Sur Yvette, France
[2] Univ Paris Saclay, IJCLab, CNRS, IN2P3, F-91405 Orsay, France
[3] Univ Paris Saclay, Serv Rech Mat & Procedes Avances, CEA, F-91191 Gif Sur Svette, France
来源：
SCRIPTA MATERIALIA | 2025年 / 254卷
关键词：
ODS; Alpha' formation; Injected ions; Ion irradiation; DEGREES-C EMBRITTLEMENT; CHEMICAL-COMPOSITION; NEUTRON-IRRADIATION; ATOM-PROBE; PRECIPITATION; ALLOYS; MA957; PARTICLES; STABILITY;
D O I：
10.1016/j.scriptamat.2024.116331
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Oxide Dispersion Strengthened (ODS) steels hold great promise for applications in next generation reactors. Under irradiation, a phase separation alpha/ alpha' can occur within the Fe-Cr matrix of ODS steels that can alter their mechanical properties. This work presents, for the first time, the characteristics of alpha' precipitates enhanced by ion irradiation at 400 degrees C and examines the influence of the implanted ions. Far from the implanted region, alpha' is reported in significant density while at the implanted peak, the alpha' density is considerably reduced. This suggests that ion implantation either reduces the fraction of alpha' phase formed after irradiation or delays considerably its formation. Through atom probe tomography analysis and comparison with existing literature, the low impact of the damage rate and fluence on the alpha' formation in ODS steels is highlighted. Interestingly, the efficiency of ballistic mixing of alpha' appears to be less pronounced in ODS steels than in Fe-Cr systems.
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页数：7
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