Surface modification of NiTi alloy by ion and gas cluster ion irradiation. The role of chemical segregation

IF 1.4 3区物理与天体物理 Q3 INSTRUMENTS & INSTRUMENTATION

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms Pub Date : 2024-07-11 DOI:10.1016/j.nimb.2024.165463

V.S. Chernysh , A.E. Ieshkin , D.S. Kireev , A.A. Tatarintsev , B.R. Senatulin , E.A. Skryleva

引用次数: 0

Abstract

Nitinol is an alloy of roughly equiatomic nickel and titanium, having shape memory and widely used in many applications, such as aerospace, automotive, biomedical and others. One of techniques for its treatment is plasma or ion beam irradiation. In the work we investigated surface composition and topography of the alloy formed by ion and cluster ion bombardment. A strong enrichment of the surface with nickel is detected, which does not agree with contemporary ideas about preferential sputtering. The results were compared with other known results in the area, and the processes occurring under ion irradiation of compound materials were discussed. The role of ambient oxygen in the steady state surface composition establishing is described.

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离子和气团离子辐照对镍钛合金的表面改性。化学偏析的作用

镍钛诺是一种大致等原子镍和钛的合金，具有形状记忆，广泛应用于航空航天、汽车、生物医学等领域。等离子体或离子束辐照是处理镍钛合金的技术之一。在这项工作中，我们研究了通过离子和集束离子轰击形成的合金的表面成分和形貌。我们检测到表面镍含量很高，这与当代关于优先溅射的观点不符。该结果与该领域的其他已知结果进行了比较，并讨论了复合材料在离子辐照下发生的过程。此外，还介绍了环境中的氧气在建立稳定的表面成分中的作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms 物理-核科学技术

CiteScore

2.80

自引率

7.70%

发文量

231

审稿时长

1.9 months

期刊介绍： Section B of Nuclear Instruments and Methods in Physics Research covers all aspects of the interaction of energetic beams with atoms, molecules and aggregate forms of matter. This includes ion beam analysis and ion beam modification of materials as well as basic data of importance for these studies. Topics of general interest include: atomic collisions in solids, particle channelling, all aspects of collision cascades, the modification of materials by energetic beams, ion implantation, irradiation - induced changes in materials, the physics and chemistry of beam interactions and the analysis of materials by all forms of energetic radiation. Modification by ion, laser and electron beams for the study of electronic materials, metals, ceramics, insulators, polymers and other important and new materials systems are included. Related studies, such as the application of ion beam analysis to biological, archaeological and geological samples as well as applications to solve problems in planetary science are also welcome. Energetic beams of interest include atomic and molecular ions, neutrons, positrons and muons, plasmas directed at surfaces, electron and photon beams, including laser treated surfaces and studies of solids by photon radiation from rotating anodes, synchrotrons, etc. In addition, the interaction between various forms of radiation and radiation-induced deposition processes are relevant.