离子辐照下先进结构合金的硬化行为

IF 0.5 Q4 PHYSICS, NUCLEAR

Problems of Atomic Science and Technology Pub Date : 2024-04-11 DOI:10.46813/2024-150-020

G. Tolstolutska, M. Tikhonovsky, S. Karpov, V.K. Karpach

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引用次数: 0

摘要

本研究对一系列最新开发的合金（包括具有 FCC 和 BCC 相结构的多主元合金、ODS 改性奥氏体钢和经过严重塑性变形改性的 T91 铁素体-马氏体钢）在辐照下的硬化/脆化现象进行了研究。所有材料的样品都是在相同条件下，在室温下用 1.4 MeV Ar 离子进行辐照的。透射电子显微镜（TEM）用于表征辐照缺陷和微观结构变化。采用纳米压痕法测量离子辐照对硬化的影响。研究了硬化参数对辐照剂量的依赖性及其与微观结构演变的关系。研究发现，与传统的 SS316 和 18Cr10NiTi 不锈钢相比，所开发的合金对辐照诱导硬化的敏感性更低。研究讨论了可能影响受检材料辐照硬化行为的机制。

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HARDENING BEHAVIOR OF ADVANCED STRUCTURAL ALLOYS UNDER ION IRRADIATION

In this study, a series of recently developed alloys, including multi-principal element alloys with FCC and BCC phase structure, ODS-modified austenitic steel, and T91 ferritic-martensitic steel modified with severe plastic deformation have been investigated with respect to the hardening/embrittlement phenomenon under irradiation. Samples of all materials were irradiated under identical conditions with 1.4 MeV Ar ions at room temperature. Transmission electron microscopy (TEM) was used to characterize the radiation defects and microstructural changes. Nanoindentation was employed to measure the effect of ion irradiation on hardening. The dependence of the hardening parameters on the irradiation dose, their relationship with the evolution of the microstructure was studied. It was found, that the developed alloys exhibited a reduced susceptibility to irradiation induced hardening compared to that of conventional SS316 and 18Cr10NiTi stainless steels. The study discusses the mechanisms that can affect the radiation hardening behavior in examined materials.

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来源期刊

Problems of Atomic Science and Technology 物理-核科学技术

CiteScore

0.70

自引率

50.00%

发文量

审稿时长

2-4 weeks

期刊介绍： The journal covers the following topics: Physics of Radiation Effects and Radiation Materials Science; Nuclear Physics Investigations; Plasma Physics; Vacuum, Pure Materials and Superconductors; Plasma Electronics and New Methods of Acceleration.