HARDENING OF LIGHTWEIGHT MULTI-PRINCIPAL ELEMENT TITANIUM-BASED ALLOY UNDER AR ION IRRADIATION

IF 0.5 Q4 PHYSICS, NUCLEAR Problems of Atomic Science and Technology Pub Date : 2023-10-12 DOI:10.46813/2023-147-003

G. Tolstolutska, M. Tikhonovsky, О. Velikodny, S. Karpov, V. Ruzhytskyi, G. Tolmachova, R. Vasilenko

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Abstract

Among new prospective materials multi-principal element alloys (MPEA) have attracted considerable attention in recent years due to their excellent corrosion and irradiation resistance as well as their good mechanical properties over a wide temperature range. The new lightweight multi-principal element titanium-based alloy 61Ti-10Cr-7Al11V-11Nb (at. %) with high ductility at room and elevated temperatures is studied. This single-phase bcc alloy was irradiated with 1.4 MeV Ar ions at room temperature and mid-range doses from 1 to 10 displacements per atom. The effect of irradiation is studied by examining the hardening. A comparison was performed with irradiation-induced hardening behaviour of MPEA, 316 austenitic stainless steel irradiated under an identical condition. It was shown that hardness increases with irradiation dose for all the materials studied, but this increase is lower in multi-principal element alloys both face-centered cubic (FCC) and body-centered cubic (BCC) structures than in stainless conventional steel.

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氩离子辐照下轻量化多主元素钛基合金的硬化

在新型材料中，多主元素合金(MPEA)因其优异的耐腐蚀和耐辐照性能以及在较宽温度范围内良好的力学性能，近年来受到了广泛的关注。新型轻量化多主元素钛基合金61Ti-10Cr-7Al11V-11Nb (at。在室温和高温下具有高延展性的材料。用1.4 MeV的氩离子在室温和每原子1 ~ 10个位移的中剂量照射单相bcc合金。通过观察硬化，研究了辐照的影响。对MPEA、316奥氏体不锈钢在相同辐照条件下的辐照硬化行为进行了比较。结果表明，所有材料的硬度随辐照剂量的增加而增加，但多主元素合金的面心立方(FCC)和体心立方(BCC)组织的硬度增加幅度低于不锈钢。

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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.