Friction Coefficient Evolution of Si3N4 Binary Coating with a Stoichiometric Ratio of 57/43

IF 2.9 3区工程技术 Q2 ENGINEERING, CHEMICAL Tribology Letters Pub Date : 2024-09-16 DOI:10.1007/s11249-024-01909-6

C. H. Ortiz, J. M. Fuertes, M. Bejarano, V. Barrera, J. C. Caicedo

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Abstract

Friction coefficient depends on various factors or surface characteristics during tribological testing, and this friction coefficient can be modified by altering the properties of one of the two contacting surfaces. It is crucial to monitor the friction coefficient continuously, not only at the conclusion of the test. This research examined the evolution of friction coefficient of silicon nitride (Si₃N₄) coating and H13 steel over different sliding distances (250, 500, 750, 1000 m). The study assessed surface wear and oxidation through three-dimensional profilometry and SEM/EDX. The findings indicated a reduction in friction coefficient by 22%, a decrease in wear rate by 88%, and a reduction in wear volume by 87% when comparing the silicon nitride coated steel to the uncoated steel. Furthermore, the changes in friction coefficient provided insights into the timing of the complete fracture of the hard coating.

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化学计量比为 57/43 的 Si3N4 二元涂层的摩擦系数演变

在摩擦学测试过程中，摩擦系数取决于各种因素或表面特性，可以通过改变两个接触表面之一的特性来改变摩擦系数。关键是要持续监测摩擦系数，而不仅仅是在试验结束时。这项研究考察了氮化硅（Si3N4）涂层和 H13 钢在不同滑动距离（250、500、750、1000 米）下摩擦系数的变化。研究通过三维轮廓仪和 SEM/EDX 评估了表面磨损和氧化情况。研究结果表明，氮化硅涂层钢与未涂层钢相比，摩擦系数降低了 22%，磨损率降低了 88%，磨损量降低了 87%。此外，摩擦系数的变化还有助于了解硬涂层完全断裂的时间。

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来源期刊

Tribology Letters 工程技术-工程：化工

CiteScore

5.30

自引率

9.40%

发文量

116

审稿时长

2.5 months

期刊介绍： Tribology Letters is devoted to the development of the science of tribology and its applications, particularly focusing on publishing high-quality papers at the forefront of tribological science and that address the fundamentals of friction, lubrication, wear, or adhesion. The journal facilitates communication and exchange of seminal ideas among thousands of practitioners who are engaged worldwide in the pursuit of tribology-based science and technology.