在CoCrFeNi中添加Sn和Ti对304不锈钢气钨弧包覆等原子高熵合金的影响

IF 4.8 2区材料科学 Q1 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Materials Characterization Pub Date : 2025-04-14 DOI:10.1016/j.matchar.2025.115048

Sakdipat Jaturapronperm , Pongpak Chiyasak , Ariya Taechamahaphan , Ching-An Huang , Worawat Wattanathana , Aphichart Rodchanarowan

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引用次数: 0

摘要

高熵合金（HEAs）是近年来科学家和工程师研究的重要材料之一。在各种制备方法中，包覆法被广泛应用于HEAs涂层的制备。在本研究中，采用气钨弧包覆技术成功地将等原子CoCrFeNiSn和CoCrFeNiTi体系包覆在SS304衬底上。CoCrFeNiSn包覆层的相结构为BCC （Ni2Sn2Co2）和FCC (Co0.25Cr0.25 Fe0.25 Ni0.25)， CoCrFeNiTi包覆层的相结构为FCC （NiTi2-Laves相）和FCC （Co0.25Cr0.25 Fe0.25 Ni0.25）。在CoCrFeNiSn和CoCrFeNiTi包覆体系中均可观察到平面、胞状、柱状和等轴枝晶结构的形成。此外，Co、Cr、Ni和Fe的存在导致CoCrFeNiSn和CoCrFeNiTi包层形成FCC相。cocrfeni熔覆层的硬度（293.4 ~ 315.8 HV）高于cocrfeni熔覆层的硬度（265.5 ~ 282.8 HV）。此外，CoCrFeNiSn包层在3.5 wt% NaCl溶液中表现出比CoCrFeNiTi包层和SS304更大的钝化区。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

The effect of Sn and Ti addition in CoCrFeNi to prepare equiatomic high entropy alloy cladded on 304 stainless steels via gas tungsten arc cladding

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The effect of Sn and Ti addition in CoCrFeNi to prepare equiatomic high entropy alloy cladded on 304 stainless steels via gas tungsten arc cladding

High entropy alloys (HEAs) are one of the most essential materials investigated by scientists and engineers in recent years. Among various processes, cladding process is widely used in the preparation of HEAs' coatings. In this study, the equiatomic CoCrFeNiSn and CoCrFeNiTi systems were successfully cladded on SS304 substrates using gas tungsten arc cladding. The phase structure found in the CoCrFeNiSn cladded layer was BCC (Ni₂Sn₂Co₂) and FCC (Co_0.25Cr_0.25 Fe_0.25 Ni_0.25), while the phase structure found in the CoCrFeNiTi cladded layer was composed of FCC (NiTi₂-Laves phase) and FCC (Co_0.25Cr_0.25 Fe_0.25 Ni_0.25). The formation of planar, cellular, columnar dendritic, and equiaxed dendritic structures was observed in all of the CoCrFeNiSn and CoCrFeNiTi cladded systems. In addition, the presence of Co, Cr, Ni, and Fe resulted in the formation of FCC phase for the CoCrFeNiSn and CoCrFeNiTi cladded layers. The hardness of the CoCrFeNiTi cladded layer (293.4–315.8 HV) was higher than that of the CoCrFeNiSn cladded layer (265.5–282.8 HV). Furthermore, the CoCrFeNiSn cladded layer exhibited the larger passive region in 3.5 wt% NaCl solution compared to both the CoCrFeNiTi cladded layer and SS304.

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来源期刊

Materials Characterization 工程技术-材料科学：表征与测试

CiteScore

7.60

自引率

8.50%

发文量

746

审稿时长

36 days

期刊介绍： Materials Characterization features original articles and state-of-the-art reviews on theoretical and practical aspects of the structure and behaviour of materials. The Journal focuses on all characterization techniques, including all forms of microscopy (light, electron, acoustic, etc.,) and analysis (especially microanalysis and surface analytical techniques). Developments in both this wide range of techniques and their application to the quantification of the microstructure of materials are essential facets of the Journal. The Journal provides the Materials Scientist/Engineer with up-to-date information on many types of materials with an underlying theme of explaining the behavior of materials using novel approaches. Materials covered by the journal include: Metals & Alloys Ceramics Nanomaterials Biomedical materials Optical materials Composites Natural Materials.