New Findings Regarding the Thermal Oxidation and Biomimetic Depositions on the Corrosion Resistance of the Ti-6Al-4V Alloy

IF 0.7 Q4 CHEMISTRY, MULTIDISCIPLINARY

Orbital: The Electronic Journal of Chemistry Pub Date : 2022-10-02 DOI:10.17807/orbital.v14i3.15904

Carolina Aurélia Ribeiro Maestro, Alysson Helton Santo Bueno, Roseli Marins Balestra, Artur Mariano de Sousa Malafaia, J. Moreto

引用次数: 0

Abstract

Our research group has been working on the surface functionalization of Ti-6Al-4V alloy by using thermal oxidation followed by CaP and Bi-CaP biomimetic depositions. In this short communication, we present new insights into the corrosion behaviour of the treated system by using potentiodynamic polarization tests. Our results demonstrated lower values of electric current density for the CaP specimens when compared to the Bi-CaP, indicating a tendency for the CaP samples to remake the passive film. Another reasonable explanation may be related to the displacement of CaP particles or the formation of corrosion products that partially block the pores of the coating. Morphological analyzes of all treated surfaces after the potentiodynamic polarization tests also suggest the improvement of the corrosion resistance of the Ti-6Al-4V alloy.

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热氧化和仿生沉积对Ti-6Al-4V合金耐蚀性的影响

本课题组一直致力于Ti-6Al-4V合金的表面功能化，采用热氧化、CaP和Bi-CaP仿生沉积的方法。在这个简短的通信中，我们提出了新的见解，通过使用动电位极化测试处理系统的腐蚀行为。我们的研究结果表明，与Bi-CaP相比，CaP样品的电流密度值较低，表明CaP样品有重塑钝化膜的趋势。另一个合理的解释可能与CaP颗粒的位移或腐蚀产物的形成有关，这些腐蚀产物部分阻塞了涂层的孔隙。动电位极化试验后各处理表面的形貌分析也表明Ti-6Al-4V合金的耐蚀性有所提高。

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

Orbital: The Electronic Journal of Chemistry CHEMISTRY, MULTIDISCIPLINARY-

CiteScore

1.10

自引率

0.00%

发文量

审稿时长

10 weeks

期刊介绍： Orbital: The Electronic Journal of Chemistry is a quarterly scientific journal published by the Institute of Chemistry of the Universidade Federal de Mato Grosso do Sul, Brazil. Original contributions (in English) are welcome, which focus on all areas of Chemistry and their interfaces with Pharmacy, Biology, and Physics. Neither authors nor readers have to pay fees. The journal has an editorial team of scientists drawn from regions throughout Brazil and world, ensuring high standards for the texts published. The following categories are available for contributions: 1. Full papers 2. Reviews 3. Papers on Education 4. History of Chemistry 5. Short communications 6. Technical notes 7. Letters to the Editor The Orbital journal also publishes a number of special issues in addition to the regular ones. The central objectives of Orbital are threefold: (i) to provide the general scientific community (at regional, Brazilian, and worldwide levels) with a formal channel for the communication and dissemination of the Chemistry-related literature output by publishing original papers based on solid research and by reporting contributions which further knowledge in the field; (ii) to provide the community with open, free access to the full content of the journal, and (iii) to constitute a valuable channel for the dissemination of Chemistry-related investigations.