Cermet coatings obtained by electric spark alloying to increase service life of dental instruments

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2024-12-15 DOI:10.1016/j.ceramint.2024.10.112

R. Gvetadze , S. Arutyunov , S. Kryuchkov , M. Antipov , P. Bazhin , M. Mustafaev , A. Deshev , V. Tsarev , M. Andreev , I. Katkov , S. Agasieva , V. Avdeeva

{"title":"Cermet coatings obtained by electric spark alloying to increase service life of dental instruments","authors":"R. Gvetadze , S. Arutyunov , S. Kryuchkov , M. Antipov , P. Bazhin , M. Mustafaev , A. Deshev , V. Tsarev , M. Andreev , I. Katkov , S. Agasieva , V. Avdeeva","doi":"10.1016/j.ceramint.2024.10.112","DOIUrl":null,"url":null,"abstract":"<div><div>The article presents the results of our study of protective cermet coatings obtained by the method of electric spark alloying on a dental instrument (excavator) using SHS (self-propagating high-temperature synthesis) electrodes based on TiC-NiCr. The influence of discharge energy during electric spark alloying on the roughness, thickness, and proportion of the TiC carbide phase in the cermet coating has been established. It has been shown that during electric spark alloying, the material of the used SHS electrode and the surface of the substrate melt, their convective mixing occurs, and during crystallization, coatings are formed that consist of a strengthening phase TiC and iron-based solid solutions: Fe<sub>9.64</sub>Ti<sub>0.36</sub>, F<sub>1.88</sub>C<sub>0.12</sub>, and Cr-Ni-Fe-C. It has been found that the maximum size of TiC grains is formed on the surface of the cermet coating, and as they approach the substrate, their size decreases to less than 10 nm. It has been found that the microhardness of the surface of the resulting cermet coatings increased to 6.2 times compared to the microhardness of the original metal base, which was 2 GPa. The results of scanning electron microscopy and energy dispersive analysis of the surface of samples with and without cermet coating before and after corrosion tests are presented. The influence of disinfectants (2 and 100 % Trilox, Wendelin, MegaDes-ortho) on the corrosion resistance of samples with and without developed protective cermet coatings at room and elevated temperatures up to 50 °C and their exposure for 120 h has been established.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"50 24","pages":"Pages 52613-52621"},"PeriodicalIF":5.1000,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ceramics International","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0272884224046248","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}

引用次数: 0

Abstract

The article presents the results of our study of protective cermet coatings obtained by the method of electric spark alloying on a dental instrument (excavator) using SHS (self-propagating high-temperature synthesis) electrodes based on TiC-NiCr. The influence of discharge energy during electric spark alloying on the roughness, thickness, and proportion of the TiC carbide phase in the cermet coating has been established. It has been shown that during electric spark alloying, the material of the used SHS electrode and the surface of the substrate melt, their convective mixing occurs, and during crystallization, coatings are formed that consist of a strengthening phase TiC and iron-based solid solutions: Fe_9.64Ti_0.36, F_1.88C_0.12, and Cr-Ni-Fe-C. It has been found that the maximum size of TiC grains is formed on the surface of the cermet coating, and as they approach the substrate, their size decreases to less than 10 nm. It has been found that the microhardness of the surface of the resulting cermet coatings increased to 6.2 times compared to the microhardness of the original metal base, which was 2 GPa. The results of scanning electron microscopy and energy dispersive analysis of the surface of samples with and without cermet coating before and after corrosion tests are presented. The influence of disinfectants (2 and 100 % Trilox, Wendelin, MegaDes-ortho) on the corrosion resistance of samples with and without developed protective cermet coatings at room and elevated temperatures up to 50 °C and their exposure for 120 h has been established.

查看原文本刊更多论文

通过电火花合金化获得的金属陶瓷涂层可延长牙科器械的使用寿命

文章介绍了我们对使用基于 TiC-NiCr 的 SHS（自蔓延高温合成）电极在牙科器械（挖掘机）上通过电火花合金化方法获得的保护性金属陶瓷涂层的研究结果。研究确定了电火花合金化过程中放电能量对金属陶瓷涂层的粗糙度、厚度和碳化钛相比例的影响。研究表明，在电火花合金化过程中，使用的 SHS 电极材料和基体表面熔化，两者发生对流混合，在结晶过程中形成由强化相 TiC 和铁基固溶体组成的涂层：Fe9.64Ti0.36, F1.88C0.12 和 Cr-Ni-Fe-C。研究发现，TiC 晶粒的最大尺寸形成于金属陶瓷涂层的表面，当它们接近基体时，尺寸会减小到 10 nm 以下。研究发现，与原始金属基体的显微硬度（2 GPa）相比，所得金属陶瓷涂层表面的显微硬度提高了 6.2 倍。腐蚀试验前后，有无金属陶瓷涂层样品表面的扫描电子显微镜和能量色散分析结果均已公布。研究还确定了消毒剂（2% 和 100% Trilox、Wendelin、MegaDes-ortho）对带有和未带有已开发保护性金属陶瓷涂层的样品在最高 50°C 的室温和高温下以及暴露 120 小时后的耐腐蚀性能的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.