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Sökning: WFRF:(Qiu Siyi)

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1.
  • Liu, Hui, et al. (författare)
  • Corrosion performance of He + ion irradiated 304 L stainless steel made by laser powder bed fusion in simulated PWR water
  • 2022
  • Ingår i: Corrosion Science. - : Elsevier BV. - 0010-938X. ; 206
  • Tidskriftsartikel (refereegranskat)abstract
    • The corrosion performance of irradiated 304 L processed by laser powder bed fusion (LPBF) in simulated primary water of pressurized water reactor was investigated. The oxide scales formed on He+ irradiated and unirradiated LPBF 304 L were compared between as-built and solution-annealed samples along with a conventionally rolled irradiated counterpart. The irradiation induced corrosion acceleration by forming slightly thicker duplex-layer films with loose the inner oxide layer was observed on the solution-annealed sample due to the fast diffusion paths provided by irradiation defects. A relatively dense film with a thinner thickness and more Cr enrichment in the inner scale revealed a better corrosion resistance in the as-built LPBF 304 L sample, which was attributed to the better irradiation resistance and the unique microstructure of ultrafine crystalline.
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2.
  • Qiu, Siyi, et al. (författare)
  • A Brief Review on He Ion Irradiation Research of Steel and Iron-Based Alloys in Nuclear Power Plants
  • 2023
  • Ingår i: Acta Metallurgica Sinica (English Letters). - : Springer Science and Business Media LLC. - 1006-7191 .- 2194-1289. ; 36:4, s. 529-551
  • Forskningsöversikt (refereegranskat)abstract
    • Nuclear power plays a key role as renewable energy in alleviating the worldwide energy shortage. The material degradation caused by high-temperature and high-flux neutron irradiation is the most concerning issue for nuclear reactor safety. A large number of He atoms produced through the (n, alpha) transmutation reaction diffuse and migrate in metals and accumulate to form He bubbles because of the extremely low solubility of He atoms in metal materials. The helium bubbles gather at the grain boundary or grain to cause swelling, hardening, embrittlement, and other damages to the in-core structural components. This paper mainly summarizes the research progress on He irradiation in steel and iron-based alloys, including the diffusion and accumulation of He atoms, the nucleation and growth of He bubbles, and the microstructure and macroscopic degradation of material performance caused by He irradiation. The mechanism of helium irradiation-induced corrosion in steel and iron-based alloys in recent years is reviewed as well. Moreover, the investigations on irradiation performance in additive manufactured stainless steels are summarized, and the mechanism of irradiation resistance is prospected.
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  • Resultat 1-2 av 2
Typ av publikation
tidskriftsartikel (1)
forskningsöversikt (1)
Typ av innehåll
refereegranskat (2)
Författare/redaktör
Liu, Hui (2)
Chen, Zhuoer, 1989 (2)
Hou, Juan (2)
Min, Shiling (2)
Jiang, Menglei (2)
Qiu, Siyi (2)
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Yang, Jing (1)
Kuang, Wenjun (1)
Gu, Yanlin (1)
Wang, Qingyan (1)
Li, Xuejun (1)
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Chalmers tekniska högskola (2)
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Engelska (2)
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Teknik (2)
Naturvetenskap (1)

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