Nanostructuring Fe‐Cr‐W Steel Enhances its Resistance to Self‐Ion Irradiation,Advanced Engineering Materials

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Nanostructuring Fe‐Cr‐W Steel Enhances its Resistance to Self‐Ion Irradiation
Advanced Engineering Materials ( IF 3.4 ) Pub Date : 2020-01-27 , DOI: 10.1002/adem.201901333
Andrey Mazilkin _{1,

2} , Yulia Ivanisenko ₁ , Xavier Sauvage ₃ , Auriane Etienne ₃ , Bertrand Radiguet ₃ , Ruslan Valiev _{4,

5} , Marina Abramova ₄ , Nariman Enikeev _{4,

5}

Affiliation

Herein, a study on radiation‐induced defect structures in a reactor Fe–14Cr–1W (wt%) steel with grain sizes of 5 μm and 110 nm is presented. Self‐ion irradiation of the steel in both states is conducted with a damage dose of 10 dpa. Microstructure characterization shows that the density of intragranular radiation‐induced dislocations is significantly lower in case of the nanostructured material. From the results obtained, it follows that microstructure refinement to a grain size of about 100 nm can be effectively used to approach a problem of higher defect production rate in Fe–Cr steels driven by irradiation and to produce alloys with significantly enhanced mechanical performance as well as radiation tolerance.

中文翻译：

纳米结构 Fe-Cr-W 钢增强其抗自离子辐照能力

在此，介绍了晶粒尺寸为 5 μm 和 110 nm 的反应堆 Fe-14Cr-1W (wt%) 钢中辐射诱导缺陷结构的研究。两种状态下钢的自离子辐照均以 10 dpa 的损伤剂量进行。微观结构表征表明，在纳米结构材料的情况下，颗粒内辐射诱导的位错密度明显较低。从获得的结果可以看出，将微观结构细化到约 100 nm 的晶粒尺寸可以有效地解决由辐照驱动的 Fe-Cr 钢中更高的缺陷产生率的问题，并生产出机械性能显着提高的合金作为辐射耐受性。

更新日期：2020-01-27

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