Nd:YAG激光处理后钛板的结构表征及表面改性

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2020-01-01 DOI:10.4152/pea.202004215

A. Bahloul, M. Sahour, R. Oumeddour, G. Pillon

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引用次数: 1

摘要

采用短脉冲持续时间约5 ns的Nd:YAG激光源，在空气中对工业纯钛板(CP-Ti级4)进行了表面激光处理。注意以下激光加工参数:激光功率、相互作用时间和辐照区表面。通过不同的表征技术分析了形成层的形态、结构和化学成分，提供了物理化学和结构信息。本研究的目的是研究激光辐照对CP-Ti 4级成分的影响。此外，还对所得层的表面改性进行了模拟评价。研究了改性表面在不同pH值的林格生理溶液中的电化学响应。为了研究激光处理表面的摩擦学行为，进行了微动试验。结果表明，激光治疗诱导O2和N2等轻元素的插入。与未经处理的CP-Ti级相比，激光表面处理使CP-Ti级4的腐蚀电位向贵金属一侧移动。经过微动试验，发现各层的稳定摩擦系数相似，且远低于未处理CP-Ti的测量值。

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Structural Characterization and Surface Modification of Titanium Plates After Nd:YAG Laser Treatment

Surface laser treatments of commercially pure titanium plates (CP-Ti grade 4) were performed in air using a Nd:YAG laser source of short pulse duration about 5 ns. Attention is drawn to the following laser-processing parameters: laser-power interaction time and surface of the irradiated zone. The morphology, structure and chemical composition of the formed layers were analyzed by different characterization techniques providing physico-chemical and structure information. The objective of this research was to study the influence of laser fluence on the composition of the CP-Ti grade 4. Additionally, it was pretended to evaluate the surface modification of obtained layers. The electrochemical response of modified surface in Ringer’s physiological solutions at varying pH values was studied. Fretting test has been investigated in order to study the tribological behavior of the laser treated surface. Results showed that the laser treatments induce the insertion of light elements such as O2 and N2. Laser surface processing shifted the corrosion potential of CP-Ti grade 4 towards the noble side, as compared to the untreated one. After fretting tests, it was found that the steady friction coefficient was similar for all the layers, and quite lower than that measured for the untreated CP-Ti.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.