Application of Diamond Burnishing to Improve the Performance of Materials

Dear Colleagues,

It is known that the conditions and service life of components depend, to the greatest extent, on the complex state of the surface layers, i.e., from surface integrity (SI). Therefore, a modern direction in applied engineering sciences these days is surface engineering (SE), which refers to a wide range of techniques and technologies for modifying surface layers in order to improve the operational behavior, aesthetics and economic value of components. For a given material and operating conditions, the component operational behavior depends on the specific SI obtained after applying the relevant finishing process. Therefore, the object of SE is the "SE process - SI - operating behavior" correlation. A cost-effective group of processes within the scope of SE are mechanical surface treatment processes via cold plastic deformation, both dynamic and static, the latter being known as burnishing processes. The most popular static burnishing process, which uses sliding contact between the deforming element and surface being treated, is diamond burnishing (DB). The presence of sliding contact defines the specificity of DB and extends its ability to improve the operating behavior of a wide range of materials. This Special Issue focuses on presenting the latest research on the application of DB to improve the performance of different materials, which find application in various sectors of the industry, such as automotive, machine building, energy, petroleum and chemical industries, biomedicine, etc.

Potential topics include the following:

• Correlation between DB process parameters and SI characteristics;
• Correlation between the SI characteristics obtained through DB and the operational behavior of the corresponding component (fatigue, wear, corrosion resistance and others);
• Development of novel processes for modifying surface layers based on combining DB with other SE processes;
• Development and research of novel diamond and other structures as materials for deforming elements in slide burnishing processes;
• DB application for processing complex surfaces and novel materials;
• Development of novel slide burnishing tools and devices and novel strategies for the processing of slide DB deforming elements and tools;
• Exploring the physical nature of slide DB processes:
• Wear resistance of the deforming element;
• Friction coefficient between the deforming element and the processed material;
• Energy exchange in tool–workpiece system.

• Development and application of optimization procedures in slide DB process.

Prof. Dr. Jordan Todorov Maximov
Prof. Dr. Galya Velikova Duncheva
Guest Editors

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